Form 10-Q - Quarterly report [Sections 13 or 15(d)]

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)


☑			QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2024


☐			TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission File Number: 1-12675 (Kilroy Realty Corporation)

Commission File Number: 000-54005 (Kilroy Realty, L.P.)

KILROY REALTY CORPORATION

KILROY REALTY, L.P.

(Exact name of registrant as specified in its charter)



Kilroy Realty Corporation	Maryland	95-4598246
	(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

Kilroy Realty, L.P.	Delaware	95-4612685
	(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

12200 W. Olympic Boulevard, Suite 200, Los Angeles, California, 90064

(Address of principal executive offices) (Zip Code)

(310) 481-8400


(Registrant's telephone number, including area code)

N/A
(Former name, former address and former fiscal year, if changed since last report)


Securities registered pursuant to Section 12(b) of the Act:
Registrant	Title of each class	Name of each exchange on which registered	Ticker Symbol
Kilroy Realty Corporation	Common Stock, $.01 par value	New York Stock Exchange	KRC


Securities registered pursuant to Section 12(g) of the Act:
Registrant			Title of each class
Kilroy Realty, L.P.			Common Units Representing Limited Partnership Interests

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Kilroy Realty Corporation Yes ☑ No ☐

Kilroy Realty, L.P. Yes ☑ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

Kilroy Realty Corporation Yes ☑ No ☐

Kilroy Realty, L.P. Yes ☑ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Kilroy Realty Corporation

Large accelerated filer ☑ Accelerated filer ☐

Non-accelerated filer ☐ Smaller reporting company ☐

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Kilroy Realty, L.P.

Large accelerated filer ☐ Accelerated filer ☐

Non-accelerated filer ☑ Smaller reporting company ☐

Emerging growth company ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Kilroy Realty Corporation Yes ☐ No ☑

Kilroy Realty, L.P. Yes ☐ No ☑

As of October 25, 2024, 118,046,674 shares of Kilroy Realty Corporation common stock, par value $.01 per share, were outstanding.

EXPLANATORY NOTE

This report combines the quarterly reports on Form 10-Q for the period ended September 30, 2024 of Kilroy Realty Corporation and Kilroy Realty, L.P. Unless stated otherwise or the context otherwise requires, references to “Kilroy Realty Corporation” or the “Company,” “we,” “our,” and “us” mean Kilroy Realty Corporation, a Maryland corporation, and its controlled and consolidated subsidiaries, and references to “Kilroy Realty, L.P.” or the “Operating Partnership” mean Kilroy Realty, L.P., a Delaware limited partnership and its controlled and consolidated subsidiaries.

The Company is a real estate investment trust, or REIT, and the general partner of the Operating Partnership. As of September 30, 2024, the Company owned an approximate 99.0% common general partnership interest in the Operating Partnership. The remaining approximate 1.0% common limited partnership interests are owned by non-affiliated investors and a former executive officer and director. As the sole general partner of the Operating Partnership, the Company exercises exclusive and complete discretion over the Operating Partnership’s day-to-day management and control and can cause it to enter into certain major transactions, including acquisitions, dispositions, and refinancings and cause changes in its line of business, capital structure, and distribution policies.

There are a few differences between the Company and the Operating Partnership that are reflected in the disclosures in this Form 10-Q. We believe it is important to understand the differences between the Company and the Operating Partnership in the context of how the Company and the Operating Partnership operate as an interrelated, consolidated company. The Company is a REIT, the only material asset of which is the partnership interests it holds in the Operating Partnership. As a result, the Company generally does not conduct business itself, other than acting as the sole general partner of the Operating Partnership, issuing equity from time to time and guaranteeing certain debt of the Operating Partnership. The Company itself is not directly obligated under any indebtedness, but generally guarantees all of the debt of the Operating Partnership. The Operating Partnership owns substantially all of the assets of the Company either directly or through its subsidiaries, conducts the operations of the Company’s business, and is structured as a limited partnership with no publicly traded equity. Except for net proceeds from equity issuances by the Company, which the Company generally contributes to the Operating Partnership in exchange for units of partnership interest, the Operating Partnership generates the capital required by the Company’s business through the Operating Partnership’s operations, by the Operating Partnership’s incurrence of indebtedness or through the issuance of units of partnership interest.

Noncontrolling interests, stockholders’ equity, and partners’ capital are the main areas of difference between the consolidated financial statements of the Company and those of the Operating Partnership. The common limited partnership interests in the Operating Partnership are accounted for as partners’ capital in the Operating Partnership’s financial statements and, to the extent not held by the Company, as noncontrolling interests in the Company’s financial statements. The differences between stockholders’ equity, partners’ capital, and noncontrolling interests result from the differences in the equity issued by the Company and the Operating Partnership.

We believe combining the quarterly reports on Form 10-Q of the Company and the Operating Partnership into this single report results in the following benefits:

•Combined reports better reflect how management and the analyst community view the business as a single operating unit;

•Combined reports enhance investors’ understanding of the Company and the Operating Partnership by enabling them to view the business as a whole and in the same manner as management;

•Combined reports are more efficient for the Company and the Operating Partnership and result in savings in time, effort and expense; and

•Combined reports are more efficient for investors by reducing duplicative disclosure and providing a single document for their review.

To help investors understand the significant differences between the Company and the Operating Partnership, this report presents the following separate sections for each of the Company and the Operating Partnership:

•consolidated financial statements;

•the following notes to the consolidated financial statements:

◦Note 12, Net Income Available to Common Stockholders Per Share of the Company;

◦Note 13, Net Income Available to Common Unitholders Per Unit of the Operating Partnership;

◦Note 14, Supplemental Cash Flows Information of the Company; and

◦Note 15, Supplemental Cash Flows Information of the Operating Partnership;

•“Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

◦—Liquidity and Capital Resources of the Company;” and

◦—Liquidity and Capital Resources of the Operating Partnership.”

This report also includes separate sections under “Part I – Financial Information, Item 4. Controls and Procedures” and separate Exhibit 31 and Exhibit 32 certifications for the Company and the Operating Partnership to establish that the Chief Executive Officer and the Chief Financial Officer of each entity have made the requisite certifications and that the Company and Operating Partnership are compliant with Rule 13a-15 or Rule 15d-15 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and 18 U.S.C. §1350.

Available Information

We use our website (www.kilroyrealty.com) as a routine channel of distribution of company information, including press releases, presentations, and supplemental information, as a means of disclosing material non-public information and for complying with our disclosure obligations under Regulation FD. Accordingly, investors should monitor our website in addition to following press releases, SEC filings, and public conference calls and webcasts. Investors and others can receive notifications of new information posted on our investor relations website in real time by signing up for email alerts.

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

QUARTERLY REPORT FOR THE THREE AND NINE MONTHS ENDED SEPTEMBER 30, 2024

TABLE OF CONTENTS


		Page
	PART I – FINANCIAL INFORMATION
Item 1.	FINANCIAL STATEMENTS (UNAUDITED) OF KILROY REALTY CORPORATION	1
	Consolidated Balance Sheets as of September 30, 2024 and December 31, 2023	1
	Consolidated Statements of Operations for the Three and Nine Months ended September 30, 2024 and 2023	2
	Consolidated Statements of Equity for the Three and Nine Months ended September 30, 2024 and 2023	3
	Consolidated Statements of Cash Flows for the Nine Months ended September 30, 2024 and 2023	5
Item 1.	FINANCIAL STATEMENTS (UNAUDITED) OF KILROY REALTY, L.P.	6
	Consolidated Balance Sheets as of September 30, 2024 and December 31, 2023	6
	Consolidated Statements of Operations for the Three and Nine Months ended September 30, 2024 and 2023	7
	Consolidated Statements of Capital for the Three and Nine Months ended September 30, 2024 and 2023	8
	Consolidated Statements of Cash Flows for the Nine Months ended September 30, 2024 and 2023	10
	Notes to Unaudited Consolidated Financial Statements	11
Item 2.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	28
Item 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	58
Item 4.	CONTROLS AND PROCEDURES (KILROY REALTY CORPORATION AND KILROY REALTY, L.P.)	58
	PART II – OTHER INFORMATION
Item 1.	LEGAL PROCEEDINGS	59
Item 1A.	RISK FACTORS	59
Item 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	59
Item 3.	DEFAULTS UPON SENIOR SECURITIES	59
Item 4.	MINE SAFETY DISCLOSURES	59
Item 5.	OTHER INFORMATION	59
Item 6.	EXHIBITS	60
SIGNATURES		61

PART I – FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS (UNAUDITED) OF KILROY REALTY CORPORATION

KILROY REALTY CORPORATION

CONSOLIDATED BALANCE SHEETS

(Unaudited; in thousands, except share data)


	September 30, 2024		December 31, 2023
ASSETS
REAL ESTATE ASSETS (Note 2):
Land and improvements	$	1,750,820	$	1,743,170
Buildings and improvements	8,573,332		8,463,674
Undeveloped land and construction in progress	2,254,628		2,034,804
Total real estate assets held for investment	12,578,780		12,241,648
Accumulated depreciation and amortization	(2,747,494)		(2,518,304)
Total real estate assets held for investment, net	9,831,286		9,723,344

CASH AND CASH EQUIVALENTS	625,395		510,163

MARKETABLE SECURITIES (Notes 3 and 11)	27,144		284,670
CURRENT RECEIVABLES, NET	11,218		13,609
DEFERRED RENT RECEIVABLES, NET	455,613		460,979
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET (Note 2)	226,991		229,705
RIGHT OF USE GROUND LEASE ASSETS	129,492		125,506
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 4)	73,495		53,069

TOTAL ASSETS	$	11,380,634	$	11,401,045
LIABILITIES AND EQUITY
LIABILITIES:
Secured debt, net (Notes 5 and 11)	$	599,478	$	603,225
Unsecured debt, net (Notes 5 and 11)	4,401,678		4,325,153

Accounts payable, accrued expenses, and other liabilities	354,785		371,179
Ground lease liabilities (Note 10)	128,606		124,353
Accrued dividends and distributions	64,844		64,440
Deferred revenue and acquisition-related intangible liabilities, net (Note 2)	151,670		173,638
Rents received in advance and tenant security deposits	71,033		79,364

Total liabilities	5,772,094		5,741,352
COMMITMENTS AND CONTINGENCIES (Note 10)
EQUITY:
Stockholders’ Equity (Note 6):
Common stock, $.01 par value, 280,000,000 shares authorized, 118,046,674 and 117,239,558 shares issued and outstanding	1,181		1,173
Additional paid-in capital	5,203,195		5,205,839
Retained earnings	175,962		221,149
Total stockholders’ equity	5,380,338		5,428,161
Noncontrolling Interests (Notes 1 and 7):
Common units of the Operating Partnership	52,441		53,275
Noncontrolling interests in consolidated property partnerships	175,761		178,257
Total noncontrolling interests	228,202		231,532
Total equity	5,608,540		5,659,693
TOTAL LIABILITIES AND EQUITY	$	11,380,634	$	11,401,045

See accompanying notes to consolidated financial statements.

KILROY REALTY CORPORATION

CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited; in thousands, except share and per share data)


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
REVENUES
Rental income (Note 9)	$	285,951	$	280,681	$	836,760	$	852,094
Other property income	3,987		2,913		12,490		8,584
Total revenues	289,938		283,594		849,250		860,678
EXPENSES
Property expenses	63,593		59,445		180,192		168,233
Real estate taxes	26,677		28,363		84,925		84,868

Ground leases (Note 10)	2,977		2,390		8,725		7,172
General and administrative expenses (Note 8)	18,066		24,761		54,596		71,356

Leasing costs	2,353		1,852		6,751		4,550
Depreciation and amortization	91,879		85,224		267,061		269,262
Total expenses	205,545		202,035		602,250		605,441
OTHER INCOME (EXPENSES)
Interest income	9,688		7,015		32,962		11,896
Interest expense (Note 5)	(36,408)		(29,837)		(112,042)		(81,891)




Total other expenses	(26,720)		(22,822)		(79,080)		(69,995)
NET INCOME	57,673		58,737		167,920		185,242
Net income attributable to noncontrolling common units of the Operating Partnership	(509)		(515)		(1,469)		(1,612)
Net income attributable to noncontrolling interests in consolidated property partnerships	(4,786)		(5,460)		(14,942)		(18,673)
Total income attributable to noncontrolling interests	(5,295)		(5,975)		(16,411)		(20,285)




NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$	52,378	$	52,762	$	151,509	$	164,957
Net income available to common stockholders per share – basic (Note 12)	$	0.44	$	0.45	$	1.27	$	1.40
Net income available to common stockholders per share – diluted (Note 12)	$	0.44	$	0.45	$	1.27	$	1.40
Weighted average shares of common stock outstanding – basic (Note 12)	117,830,481		117,184,609		117,515,623		117,133,420
Weighted average shares of common stock outstanding – diluted (Note 12)	118,243,913		117,495,246		117,954,763		117,411,395

See accompanying notes to consolidated financial statements.

KILROY REALTY CORPORATION

CONSOLIDATED STATEMENTS OF EQUITY

(Unaudited; in thousands, except share and per share/unit data)


	Common Stock							Total Stock- holders’ Equity		Noncontrolling Interests		Total Equity
	Number of Shares	Common Stock		Additional Paid-in Capital		Retained Earnings
BALANCE AS OF DECEMBER 31, 2023	117,239,558	$	1,173	$	5,205,839	$	221,149	$	5,428,161	$	231,532	$	5,659,693
Net income						49,920		49,920		5,780		55,700

Issuance of share-based compensation awards				4,017				4,017				4,017
Non-cash amortization of share-based compensation (Note 8)				4,727				4,727				4,727

Settlement of restricted stock units for shares of common stock	217,496	2		(2)				—				—
Repurchase of common stock and restricted stock units	(90,649)	(1)		(5,897)				(5,898)				(5,898)


Distributions to noncontrolling interests in consolidated property partnerships								—		(6,898)		(6,898)
Adjustment for noncontrolling interest				69				69		(69)		—

Dividends declared per share of common stock and common unit ($0.54 per share/unit)						(67,989)		(67,989)		(621)		(68,610)
BALANCE AS OF MARCH 31, 2024	117,366,405	1,174		5,208,753		203,080		5,413,007		229,724		5,642,731
Net income						49,211		49,211		5,336		54,547

Issuance of share-based compensation awards				1,085				1,085				1,085
Non-cash amortization of share-based compensation (Note 8)				6,942				6,942				6,942

Settlement of restricted stock units for shares of common stock	19,395	—		—				—				—
Repurchase of common stock and restricted stock units	(569)	—		(20)				(20)				(20)


Distributions to noncontrolling interests in consolidated property partnerships								—		(5,911)		(5,911)
Adjustment for noncontrolling interest				(61)				(61)		61		—

Dividends declared per common share and common unit ($0.54 per share/unit)						(64,495)		(64,495)		(621)		(65,116)
BALANCE AS OF JUNE 30, 2024	117,385,231	1,174		5,216,699		187,796		5,405,669		228,589		5,634,258
Net income						52,378		52,378		5,295		57,673

Issuance of share-based compensation awards				1,107				1,107				1,107
Non-cash amortization of share-based compensation (Note 8)				6,682				6,682				6,682

Settlement of restricted stock units for shares of common stock	1,249,236	13		(13)				—				—
Repurchase of common stock, stock options and restricted stock units	(587,793)	(6)		(21,712)				(21,718)				(21,718)


Distributions to noncontrolling interests in consolidated property partnerships								—		(4,629)		(4,629)
Adjustment for noncontrolling interest				432				432		(432)		—

Dividends declared per common share and common unit ($0.54 per share/unit)						(64,212)		(64,212)		(621)		(64,833)
BALANCE AS OF SEPTEMBER 30, 2024	118,046,674	$	1,181	$	5,203,195	$	175,962	$	5,380,338	$	228,202	$	5,608,540

KILROY REALTY CORPORATION

CONSOLIDATED STATEMENTS OF EQUITY – (Continued)

(Unaudited; in thousands, except share and per share/unit data)


	Common Stock							Total Stock- holders’ Equity		Noncontrolling Interests		Total Equity
	Number of Shares	Common Stock		Additional Paid-in Capital		Retained Earnings
BALANCE AS OF DECEMBER 31, 2022	116,878,031	$	1,169	$	5,170,760	$	265,118	$	5,437,047	$	237,914	$	5,674,961
Net income						56,608		56,608		8,622		65,230

Issuance of share-based compensation awards				1,365				1,365				1,365
Non-cash amortization of share-based compensation				11,566				11,566				11,566

Settlement of restricted stock units for shares of common stock	445,973	4		(4)				—				—
Repurchase of common stock and restricted stock units	(203,042)	(2)		(8,361)				(8,363)				(8,363)


Distributions to noncontrolling interests in consolidated property partnerships								—		(7,068)		(7,068)
Adjustment for noncontrolling interest				76				76		(76)		—

Dividends declared per share of common stock and common unit ($0.54 per share/unit)						(64,647)		(64,647)		(622)		(65,269)
BALANCE AS OF MARCH 31, 2023	117,120,962	1,171		5,175,402		257,079		5,433,652		238,770		5,672,422
Net income						55,587		55,587		5,688		61,275

Issuance of share-based compensation awards				726				726				726
Non-cash amortization of share-based compensation				9,496				9,496				9,496

Settlement of restricted stock units for shares of common stock	103,135	1		(1)				—				—
Repurchase of common stock and restricted stock units	(46,189)	—		(1,340)				(1,340)				(1,340)


Distributions to noncontrolling interests in consolidated property partnerships								—		(10,393)		(10,393)
Adjustment for noncontrolling interest				(56)				(56)		56		—

Dividends declared per common share and common unit ($0.54 per share/unit)						(63,971)		(63,971)		(621)		(64,592)
BALANCE AS OF JUNE 30, 2023	117,177,908	1,172		5,184,227		248,695		5,434,094		233,500		5,667,594
Net income						52,762		52,762		5,975		58,737

Issuance of share-based compensation awards				538				538				538
Non-cash amortization of share-based compensation				12,310				12,310				12,310

Settlement of restricted stock units for shares of common stock	115,492	2		(2)				—				—
Repurchase and cancellation of common stock, stock options, and restricted stock units	(53,842)	(1)		(1,891)				(1,892)				(1,892)


Distributions to noncontrolling interests in consolidated property partnerships								—		(5,349)		(5,349)
Adjustment for noncontrolling interest				(76)				(76)		76		—

Dividends declared per common share and common unit ($0.54 per share/unit)						(63,792)		(63,792)		(621)		(64,413)
BALANCE AS OF SEPTEMBER 30, 2023	117,239,558	$	1,173	$	5,195,106	$	237,665	$	5,433,944	$	233,581	$	5,667,525

See accompanying notes to consolidated financial statements.

KILROY REALTY CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited; in thousands)


	Nine Months Ended September 30,
	2024		2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	167,920	$	185,242
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	262,292		263,662
Depreciation of non-real estate furniture, fixtures, and equipment	4,769		5,600
Revenue reversals for doubtful accounts, net (Note 9)	4,657		3,931
Non-cash amortization of share-based compensation awards	13,271		28,360
Non-cash amortization of deferred financing costs and debt discounts	5,243		3,921
Non-cash amortization of net below market rents	(2,675)		(5,675)


Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(13,539)		(14,643)
Straight-line rents	(888)		(16,533)
Amortization of right of use ground lease assets	796		765
Net change in other operating assets	(7,427)		2,042
Net change in other operating liabilities	(1,507)		35,694
Net cash provided by operating activities	432,912		492,366
CASH FLOWS FROM INVESTING ACTIVITIES:
Maturity (Purchases) of certificates of deposit (Note 3)	256,581		(252,830)
Expenditures for development and redevelopment properties and undeveloped land	(290,593)		(338,794)
Expenditures for operating properties and other capital assets	(64,381)		(68,853)
Expenditures for acquisitions of operating properties (Note 2)	(35,155)		—






Net cash used in investing activities	(133,548)		(660,477)
CASH FLOWS FROM FINANCING ACTIVITIES:

Distributions to noncontrolling interests in consolidated property partnerships	(17,446)		(22,818)
Dividends and distributions paid to common stockholders and common unitholders	(191,938)		(191,499)
Repurchase of common stock and restricted stock units	(27,636)		(11,595)
Financing costs	(18,146)		(10,962)
Principal payments and repayments of secured debt	(4,482)		(4,310)


Proceeds from the issuance of unsecured debt (Note 5)	395,516		375,000
Repayments of unsecured debt (Note 5)	(320,000)		—
Borrowings on unsecured debt	—		320,000
Repurchases of unsecured debt	—		(14,290)





Net cash (used in) provided by financing activities	(184,132)		439,526
Net increase in cash and cash equivalents and restricted cash	115,232		271,415
Cash and cash equivalents and restricted cash, beginning of period	510,163		347,379
Cash and cash equivalents and restricted cash, end of period	$	625,395	$	618,794

See accompanying notes to consolidated financial statements.

ITEM 1: FINANCIAL STATEMENTS (UNAUDITED) OF KILROY REALTY, L.P.

KILROY REALTY, L.P.

CONSOLIDATED BALANCE SHEETS

(Unaudited; in thousands, except unit data)


	September 30, 2024		December 31, 2023
ASSETS
REAL ESTATE ASSETS (Note 2):
Land and improvements	$	1,750,820	$	1,743,170
Buildings and improvements	8,573,332		8,463,674
Undeveloped land and construction in progress	2,254,628		2,034,804
Total real estate assets held for investment	12,578,780		12,241,648
Accumulated depreciation and amortization	(2,747,494)		(2,518,304)
Total real estate assets held for investment, net	9,831,286		9,723,344

CASH AND CASH EQUIVALENTS	625,395		510,163

MARKETABLE SECURITIES (Notes 3 and 11)	27,144		284,670
CURRENT RECEIVABLES, NET	11,218		13,609
DEFERRED RENT RECEIVABLES, NET	455,613		460,979
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET (Note 2)	226,991		229,705
RIGHT OF USE GROUND LEASE ASSETS	129,492		125,506
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 4)	73,495		53,069

TOTAL ASSETS	$	11,380,634	$	11,401,045
LIABILITIES AND CAPITAL
LIABILITIES:
Secured debt, net (Notes 5 and 11)	$	599,478	$	603,225
Unsecured debt, net (Notes 5 and 11)	4,401,678		4,325,153

Accounts payable, accrued expenses, and other liabilities	354,785		371,179
Ground lease liabilities (Note 10)	128,606		124,353
Accrued distributions	64,844		64,440
Deferred revenue and acquisition-related intangible liabilities, net (Note 2)	151,670		173,638
Rents received in advance and tenant security deposits	71,033		79,364

Total liabilities	5,772,094		5,741,352
COMMITMENTS AND CONTINGENCIES (Note 10)
CAPITAL:
Partner's Capital - Common units, 118,046,674 and 117,239,558 held by the general partner and 1,150,574 held by common limited partners issued and outstanding	5,432,779		5,481,436
Noncontrolling interests in consolidated property partnerships (Note 1)	175,761		178,257
Total capital	5,608,540		5,659,693
TOTAL LIABILITIES AND CAPITAL	$	11,380,634	$	11,401,045

See accompanying notes to consolidated financial statements.

KILROY REALTY, L.P.

CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited; in thousands, except unit and per unit data)


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
REVENUES
Rental income (Note 9)	$	285,951	$	280,681	$	836,760	$	852,094

Other property income	3,987		2,913		12,490		8,584
Total revenues	289,938		283,594		849,250		860,678
EXPENSES
Property expenses	63,593		59,445		180,192		168,233
Real estate taxes	26,677		28,363		84,925		84,868

Ground leases (Note 10)	2,977		2,390		8,725		7,172
General and administrative expenses (Note 8)	18,066		24,761		54,596		71,356

Leasing costs	2,353		1,852		6,751		4,550
Depreciation and amortization	91,879		85,224		267,061		269,262
Total expenses	205,545		202,035		602,250		605,441
OTHER INCOME (EXPENSES)
Interest income	9,688		7,015		32,962		11,896
Interest expense (Note 5)	(36,408)		(29,837)		(112,042)		(81,891)



Total other expenses	(26,720)		(22,822)		(79,080)		(69,995)

NET INCOME	57,673		58,737		167,920		185,242
Net income attributable to noncontrolling interests in consolidated property partnerships and subsidiaries	(4,786)		(5,460)		(14,942)		(18,673)




NET INCOME AVAILABLE TO COMMON UNITHOLDERS	$	52,887	$	53,277	$	152,978	$	166,569
Net income available to common unitholders per unit – basic (Note 13)	$	0.44	$	0.45	$	1.27	$	1.40
Net income available to common unitholders per unit – diluted (Note 13)	$	0.44	$	0.45	$	1.27	$	1.40
Weighted average common units outstanding – basic (Note 13)	118,981,055		118,335,183		118,666,197		118,283,994
Weighted average common units outstanding – diluted (Note 13)	119,394,487		118,645,820		119,105,337		118,561,969

See accompanying notes to consolidated financial statements.

KILROY REALTY, L.P.

CONSOLIDATED STATEMENTS OF CAPITAL

(Unaudited; in thousands, except unit and per unit data)


	Partners’ Capital			Noncontrolling Interests in Consolidated Property Partnerships
	Number of Common Units	Common Units				Total Capital
BALANCE AS OF DECEMBER 31, 2023	118,390,132	$	5,481,436	$	178,257	$	5,659,693
Net income		50,422		5,278		55,700


Issuance of share-based compensation awards		4,017				4,017
Non-cash amortization of share-based compensation (Note 8)		4,727				4,727

Settlement of restricted stock units	217,496	—				—
Repurchase of common units and restricted stock units	(90,649)	(5,898)				(5,898)

Distributions to noncontrolling interests in consolidated property partnerships				(6,898)		(6,898)

Distributions declared per common unit ($0.54 per unit)		(68,610)				(68,610)
BALANCE AS OF MARCH 31, 2024	118,516,979	5,466,094		176,637		5,642,731
Net income		49,669		4,878		54,547

Issuance of share-based compensation awards		1,085				1,085
Non-cash amortization of share-based compensation (Note 8)		6,942				6,942

Settlement of restricted stock units	19,395	—				—
Repurchase of common units and restricted stock units	(569)	(20)				(20)

Distributions to noncontrolling interests in consolidated property partnerships				(5,911)		(5,911)

Distributions declared per common unit ($0.54 per unit)		(65,116)				(65,116)
BALANCE AS OF JUNE 30, 2024	118,535,805	5,458,654		175,604		5,634,258
Net income		52,887		4,786		57,673


Issuance of share-based compensation awards		1,107				1,107
Non-cash amortization of share-based compensation (Note 8)		6,682				6,682

Settlement of restricted stock units	1,249,236	—				—
Repurchase of common units, stock options and restricted stock units	(587,793)	(21,718)				(21,718)


Distributions to noncontrolling interests in consolidated property partnerships				(4,629)		(4,629)

Distributions declared per common unit ($0.54 per unit)		(64,833)				(64,833)
BALANCE AS OF SEPTEMBER 30, 2024	119,197,248	$	5,432,779	$	175,761	$	5,608,540


	Partners’ Capital			Noncontrolling Interests in Consolidated Property Partnerships
	Number of Common Units	Common Units				Total Capital
BALANCE AS OF DECEMBER 31, 2022	118,028,605	$	5,490,571	$	184,390	$	5,674,961
Net income		57,168		8,062		65,230

Issuance of share-based compensation awards		1,365				1,365
Non-cash amortization of share-based compensation		11,566				11,566

Settlement of restricted stock units	445,973	—				—
Repurchase of common units and restricted stock units	(203,042)	(8,363)				(8,363)

Distributions to noncontrolling interests in consolidated property partnerships				(7,068)		(7,068)

Distributions declared per common unit ($0.54 per unit)		(65,269)				(65,269)
BALANCE AS OF MARCH 31, 2023	118,271,536	5,487,038		185,384		5,672,422
Net income		56,124		5,151		61,275

Issuance of share-based compensation awards		726				726
Non-cash amortization of share-based compensation		9,496				9,496

Settlement of restricted stock units	103,135	—				—
Repurchase of common units and restricted stock units	(46,189)	(1,340)				(1,340)

Distributions to noncontrolling interests in consolidated property partnerships				(10,393)		(10,393)

Distributions declared per common unit ($0.54 per unit)		(64,592)				(64,592)
BALANCE AS OF JUNE 30, 2023	118,328,482	5,487,452		180,142		5,667,594
Net income		53,277		5,460		58,737
Issuance of common units	—	—				—
Issuance of share-based compensation awards		538				538
Non-cash amortization of share-based compensation		12,310				12,310
Exercise of stock options		—				—
Settlement of restricted stock units	115,492	—				—
Repurchase and cancellation of common units, stock options, and restricted stock units	(53,842)	(1,892)				(1,892)
Contributions from noncontrolling interests in consolidated property partnerships				—		—
Distributions to noncontrolling interests in consolidated property partnerships				(5,349)		(5,349)
Preferred distributions						—
Distributions declared per common unit ($0.54 per unit)		(64,413)				(64,413)
BALANCE AS OF SEPTEMBER 30, 2023	118,390,132	$	5,487,272	$	180,253	$	5,667,525

See accompanying notes to consolidated financial statements.

KILROY REALTY, L.P.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited; in thousands)


	Nine Months Ended September 30,
	2024		2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	167,920	$	185,242
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	262,292		263,662
Depreciation of non-real estate furniture, fixtures, and equipment	4,769		5,600
Revenue reversals for doubtful accounts, net (Note 9)	4,657		3,931
Non-cash amortization of share-based compensation awards	13,271		28,360
Non-cash amortization of deferred financing costs and debt discounts	5,243		3,921
Non-cash amortization of net below market rents	(2,675)		(5,675)


Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(13,539)		(14,643)
Straight-line rents	(888)		(16,533)
Amortization of right of use ground lease assets	796		765
Net change in other operating assets	(7,427)		2,042
Net change in other operating liabilities	(1,507)		35,694
Net cash provided by operating activities	432,912		492,366
CASH FLOWS FROM INVESTING ACTIVITIES:
Maturity (Purchases) of certificates of deposit (Note 3)	256,581		(252,830)
Expenditures for development and redevelopment properties and undeveloped land	(290,593)		(338,794)
Expenditures for operating properties and other capital assets	(64,381)		(68,853)
Expenditures for acquisitions of operating properties (Note 2)	(35,155)		—






Net cash used in investing activities	(133,548)		(660,477)
CASH FLOWS FROM FINANCING ACTIVITIES:

Distributions to noncontrolling interests in consolidated property partnerships	(17,446)		(22,818)
Distributions paid to common unitholders	(191,938)		(191,499)
Repurchase of common units and restricted stock units	(27,636)		(11,595)
Financing costs	(18,146)		(10,962)
Principal payments and repayments of secured debt	(4,482)		(4,310)


Proceeds from the issuance of unsecured debt (Note 5)	395,516		375,000
Repayments of unsecured debt (Note 5)	(320,000)		—

Borrowings on unsecured debt	—		320,000
Repurchases of unsecured debt	—		(14,290)




Net cash (used in) provided by financing activities	(184,132)		439,526
Net increase in cash and cash equivalents and restricted cash	115,232		271,415
Cash and cash equivalents and restricted cash, beginning of period	510,163		347,379
Cash and cash equivalents and restricted cash, end of period	$	625,395	$	618,794

See accompanying notes to consolidated financial statements.

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS

1. Organization, Ownership, and Basis of Presentation

Organization and Ownership

Kilroy Realty Corporation (the “Company”) is a self-administered real estate investment trust (“REIT”) active in premier office, life science, and mixed-use property types in the United States. The Company’s approach to modern business environments is designed to drive creativity and productivity for some of the world’s leading technology, entertainment, life science, and business services companies and we have been consistently recognized for our leadership in sustainability and building operations. The Company owns, develops, acquires, and manages real estate assets, consisting primarily of premier properties in Los Angeles, San Diego, the San Francisco Bay Area, Seattle, and Austin, which we believe have strategic advantages and strong barriers to entry. The Company qualifies as a REIT under the Internal Revenue Code of 1986, as amended (the “Code”). The Company’s common stock is publicly traded on the New York Stock Exchange (“NYSE”) under the ticker symbol “KRC.”

We own our interests in all of our real estate assets through Kilroy Realty, L.P. (the “Operating Partnership”) and conduct substantially all of our operations through the Operating Partnership. Unless stated otherwise or the context otherwise requires, the terms “Kilroy Realty Corporation” or the “Company,” “we,” “our,” and “us” refer to Kilroy Realty Corporation and its consolidated subsidiaries, including the Operating Partnership, and the term “Operating Partnership” refers to Kilroy Realty, L.P. and its consolidated subsidiaries. The descriptions of our business, employees, and properties apply to both the Company and the Operating Partnership.

Our stabilized portfolio of operating properties was comprised of the following properties at September 30, 2024:


	Number of Buildings	Rentable Square Feet	Number of Tenants	Percentage Occupied (1)
Stabilized Office Properties (2)	123	17,140,465	424	84.3	%

________________________

(1)Represents economic occupancy.

(2)Includes stabilized life science and retail space.


	Number of Projects	Number of Units	2024 Average Occupancy
Stabilized Residential Properties	3	1,001	92.6	%

Our stabilized portfolio includes all of our properties with the exception of development properties currently committed for construction, under construction, in the tenant improvement phase, redevelopment properties under construction or in the tenant improvement phase, undeveloped land, and real estate assets held for sale. We define redevelopment properties as those properties for which we expect to spend significant development and construction costs pursuant to a formal plan to change its use, the intended result of which is a higher economic return on the property. We define properties in the tenant improvement phase as development or redevelopment properties where the project has reached “cold shell condition” and is ready for tenant improvements, which may require additional major base building construction before being placed in service. Projects in the tenant improvement phase are moved into our stabilized portfolio once the project reaches the earlier of 95% occupancy or one year from the date of the cessation of major base building construction activities. Costs capitalized to construction in progress for development and redevelopment properties are transferred to land and improvements, buildings and improvements, and deferred leasing costs on our consolidated balance sheets as the projects or phases of projects are placed in service.

As of September 30, 2024, the following properties were excluded from our stabilized portfolio:


	Number of Properties/Projects	Estimated Rentable Square Feet (1)


In-process redevelopment projects - tenant improvement	2	100,000
In-process development projects - under construction	1	875,000

________________________

(1)Estimated rentable square feet upon completion.

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

We did not have any properties held for sale at September 30, 2024. Our stabilized portfolio also excludes our future development pipeline, which, as of September 30, 2024, was comprised of eight future development sites, representing approximately 64 gross acres of undeveloped land.

As of September 30, 2024, all of our properties, development projects, and redevelopment projects and all of our business was conducted in the state of California, with the exception of ten stabilized office properties and one future development project located in the state of Washington, and one stabilized office property and one future development project in Austin, Texas. All of our properties, development projects, and redevelopment projects are 100% owned, excluding four office properties owned by three consolidated property partnerships. Two of the three consolidated property partnerships, 100 First Street Member, LLC (“100 First LLC”) and 303 Second Street Member, LLC (“303 Second LLC”), each owned one office property in San Francisco, California through subsidiary REITs. As of September 30, 2024, the Company owned a 56% common equity interest in both 100 First LLC and 303 Second LLC. The third consolidated property partnership, Redwood City Partners, LLC (“Redwood LLC”), owned two office properties in Redwood City, California. As of September 30, 2024, the Company owned an approximate 93% common equity interest in Redwood LLC. The remaining interests in all three property partnerships were owned by unrelated third parties.

Ownership and Basis of Presentation

The consolidated financial statements of the Company include the consolidated financial position and results of operations of the Company, the Operating Partnership, 303 Second LLC, 100 First LLC, Redwood LLC, and all of our wholly-owned and controlled subsidiaries. The consolidated financial statements of the Operating Partnership include the consolidated financial position and results of operations of the Operating Partnership, 303 Second LLC, 100 First LLC, Redwood LLC, and all of our wholly-owned and controlled subsidiaries. All intercompany balances and transactions have been eliminated in the consolidated financial statements.

As of September 30, 2024, the Company owned an approximate 99.0% common general partnership interest in the Operating Partnership. The remaining approximate 1.0% common limited partnership interest in the Operating Partnership as of September 30, 2024 was owned by non-affiliated investors and a former executive officer and director. Both the general and limited common partnership interests in the Operating Partnership are denominated in common units. Generally, the number of common units held by the Company is equivalent to the number of outstanding shares of the Company’s common stock, and the rights of all the common units to quarterly distributions and payments in liquidation mirror those of the Company’s common stockholders. The common limited partners have certain redemption rights as provided in the Operating Partnership’s Seventh Amended and Restated Agreement of Limited Partnership, as amended (the “Partnership Agreement”). With the exception of the Operating Partnership and our consolidated property partnerships, all of our subsidiaries are wholly-owned.

The accompanying interim financial statements have been prepared by management in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and in conjunction with the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures required for annual financial statements have been condensed or excluded pursuant to SEC rules and regulations. Accordingly, the interim financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, the accompanying interim financial statements reflect all adjustments of a normal and recurring nature that are considered necessary for a fair presentation of the results for the interim periods presented. However, the results of operations for the interim periods are not necessarily indicative of the results that may be expected for the year ending December 31, 2024. The interim financial statements for the Company and the Operating Partnership should be read in conjunction with the audited consolidated financial statements and notes thereto included in our annual report on Form 10-K for the year ended December 31, 2023.

Variable Interest Entities

The Operating Partnership is a variable interest entity (“VIE”) that is consolidated by the Company as the primary beneficiary, as the Operating Partnership is a limited partnership in which the common limited partners do not have substantive kick-out or participating rights. At September 30, 2024, the consolidated financial statements of the Company included three VIEs in addition to the Operating Partnership: 100 First LLC, 303 Second LLC, and one entity established during the third quarter of 2024 to facilitate a potential future Section 1031 Exchange. At September 30, 2024, the Company and the Operating Partnership were determined to be the primary beneficiaries of these three VIEs since we had the ability to control the activities that most significantly impacted each of the VIEs’ economic performance. As of September 30, 2024, the three VIEs’ total assets, liabilities, and noncontrolling interests included on our consolidated balance sheet were approximately $443.0 million (of which $361.6 million related to real estate held for investment), approximately $20.8 million, and approximately $171.1

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

million, respectively. Revenues, income, and net assets generated by 100 First LLC and 303 Second LLC may only be used to settle their contractual obligations, which primarily consist of operating expenses, capital expenditures, and required distributions.

At December 31, 2023, the consolidated financial statements of the Company included two VIEs in addition to the Operating Partnership: 100 First LLC and 303 Second LLC. At December 31, 2023, the Company and the Operating Partnership were determined to be the primary beneficiaries of these two VIEs since we had the ability to control the activities that most significantly impacted each of the VIEs’ economic performance. At December 31, 2023, the impact of consolidating the VIEs increased the Company’s total assets, liabilities, and noncontrolling interests on our consolidated balance sheet by approximately $416.7 million (of which $350.0 million related to real estate held for investment), approximately $23.6 million, and approximately $173.7 million, respectively.

Recently Issued Accounting Pronouncements

In November 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2023-07 “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures.” This ASU is effective for fiscal years beginning after December 15, 2023 and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating the impact of adopting this ASU on our consolidated financial statements and disclosures.

In December 2023, the FASB issued ASU 2023-09 “Income Taxes (Topic 740): Improvements to Tax Disclosures.” The ASU is effective for annual periods beginning after December 15, 2024. The Company does not currently anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

2. Acquisitions

Operating Property Acquisitions

During the nine months ended September 30, 2024, we acquired the operating property listed below from an unrelated third party:

Property

Date of Acquisition

Number of Buildings

Rentable Square Feet

Purchase Price (in millions) (1)

12707 & 12777 High Bluff Drive (Junction at Del Mar)

September 27, 2024

103,731

35.0

________________________

(1)Excludes acquisition-related costs.

The related assets, liabilities, and results of operations of the acquired properties are included in the consolidated financial statements as of the date of acquisition. The following table summarizes the estimated relative fair values of the assets acquired and liabilities assumed as of the date of acquisition, excluding acquisition-related costs:


	Total 2024 Operating Property Acquisitions (1)(2)
Assets
Land and improvements	$	6,000
Buildings and improvements (3)	15,703
Deferred leasing costs and acquisition-related intangible assets (4)	13,534
Prepaid expenses and other assets, net	30
Total assets acquired	$	35,267
Liabilities
Acquisition-related intangible liabilities (5)	$	267
Total liabilities assumed	267
Net assets and liabilities acquired	$	35,000

________________________

(1)As of September 30, 2024, this property was temporarily being held in a separate VIE to facilitate a potential Section 1031 Exchange. See Note 1 “Organization, Ownership, and Basis of Presentation” to our consolidated financial statements included in this report for additional information.

(2)Excludes acquisition related costs of $0.2 million.

(3)Represents buildings, building improvements, and tenant improvements.

(4)Represents in-place leases (approximately $10.5 million with a weighted average amortization period of 4.7 years), leasing commissions (approximately $2.0 million with a weighted average amortization period of 4.9 years), and an above-market lease (approximately $1.0 million with a weighted average amortization period of 4.6 years).

(5)Represents below-market leases (approximately $0.3 million with a weighted average amortization period of 4.9 years).

3. Marketable Securities

Marketable securities consisted of the following at September 30, 2024 and December 31, 2023:


	September 30, 2024		December 31, 2023
	(in thousands)
Deferred compensation plan assets	$	27,144	$	28,089
Certificates of deposit (1)	—		256,581
Total marketable securities	$	27,144	$	284,670

________________________

(1)The certificates of deposit had an original issuance term greater than three months but less than 12 months.

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

4. Prepaid Expenses and Other Assets, Net

Prepaid expenses and other assets, net consisted of the following at September 30, 2024 and December 31, 2023:


	September 30, 2024		December 31, 2023
	(in thousands)
Furniture, fixtures and other long-lived assets, net	$	38,934	$	37,073
Prepaid expenses and deferred financing costs, net	28,346		10,532
Other assets	6,215		5,464
Total prepaid expenses and other assets, net	$	73,495	$	53,069

5. Secured and Unsecured Debt of the Operating Partnership

The Company generally guarantees all of the Operating Partnership’s unsecured debt obligations, including the unsecured revolving credit facility, the unsecured term loan facility, and all of the unsecured senior notes.

Unsecured Senior Notes - Registered Public Offering

In January 2024, the Operating Partnership issued $400.0 million aggregate principal amount of unsecured senior notes in a registered public offering. The outstanding balance of the unsecured senior notes is included in unsecured debt, net of an initial issuance discount of $4.5 million, on our consolidated balance sheets. The unsecured senior notes, which are scheduled to mature on January 15, 2036, require semi-annual interest payments each January and July based on a stated annual interest rate of 6.250%. The Operating Partnership may redeem the notes at any time, either in whole or in part, subject to the payment of an early redemption premium with respect to redemptions prior to October 15, 2035. On or after October 15, 2035, the Operating Partnership may redeem the notes at any time, either in whole or in part, at par.

Unsecured Revolving Credit Facility and Term Loan Facilities

In March 2024, the Operating Partnership amended and restated the terms of its unsecured revolving credit facility. The amendment and restatement maintained the $1.1 billion borrowing capacity and extended the maturity date of the unsecured revolving credit facility to July 31, 2028.

The following table summarizes the balance and terms of our unsecured revolving credit facility as of September 30, 2024 and December 31, 2023:


	Unsecured Revolving Credit Facility
	September 30, 2024			December 31, 2023
	(in thousands)
Outstanding borrowings	$	—		$	—
Remaining borrowing capacity (1)	1,100,000			1,100,000
Total borrowing capacity (1)	$	1,100,000		$	1,100,000
Interest rate (2)	5.96		%	6.38		%
Facility fee-annual rate (3)	0.200%
Maturity date (4)	July 31, 2028			July 31, 2025

________________________

(1)Remaining and total borrowing capacity are further reduced by the amount of our outstanding letters of credit which total approximately $5.2 million as of September 30, 2024 and December 31, 2023. We may elect to borrow, subject to bank approval and obtaining commitments for any additional borrowing capacity, up to an additional $500.0 million under an accordion feature pursuant to the terms of the unsecured revolving credit facility.

(2)Our unsecured revolving credit facility interest rate was calculated using the Secured Overnight Financing Rate (“SOFR”) plus a SOFR adjustment of 0.10% (“Adjusted SOFR”) and a margin of 0.900% based on our credit rating as of September 30, 2024 and December 31, 2023. We may be entitled to a temporary 0.01% reduction in the interest rate provided we meet certain sustainability goals with respect to the ongoing reduction of greenhouse gas emissions.

(3)Our facility fee is paid on a quarterly basis and is calculated based on the total borrowing capacity. In addition to the facility fee, we incurred debt origination and legal costs in connection with the amendment and restatement of the unsecured revolving credit facility. As of September 30, 2024 and December 31, 2023, $13.6 million and $3.2 million of unamortized deferred financing costs, respectively, which are included in prepaid expenses and other assets, net on our consolidated balance sheets, remained to be amortized through the maturity date of our unsecured revolving credit facility.

(4)The maturity date may be extended by two six-month periods, at the Operating Partnership’s election.

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

The Operating Partnership intends to borrow under the unsecured revolving credit facility from time to time for general corporate purposes, including to finance development and redevelopment expenditures, to fund potential acquisitions, to repay long-term debt, and to supplement cash balances in response to market conditions.

In connection with amending and restating the unsecured revolving credit facility, the Operating Partnership repaid $200.0 million of its existing $520.0 million unsecured term loan facility (the “2022 Term Loan Facility”) and extended the maturity date on $200.0 million of the remaining $320.0 million principal balance by 12 months to October 3, 2025 (the “2024 Term Loan Facility”). The following table summarizes the balance and terms of our 2024 Term Loan Facility as of September 30, 2024:


	2024 Term Loan Facility
	September 30, 2024
	(in thousands)
Outstanding borrowings	$	200,000
Remaining borrowing capacity	—
Total borrowing capacity (1)	$	200,000
Interest rate (2)	6.16		%
Maturity date (3)	October 3, 2025

____________________

(1)We may elect to borrow, subject to bank approval and obtaining commitments for any additional borrowing capacity, up to an additional $130.0 million as of September 30, 2024, under an accordion feature pursuant to the terms of the 2024 Term Loan Facility.

(2)Our 2024 Term Loan Facility interest rate was calculated using Adjusted SOFR plus a margin of 0.950% based on our credit rating as of September 30, 2024. Additionally, we incurred debt origination and legal costs in connection with the amendment and restatement of the unsecured revolving credit facility. As of September 30, 2024, $1.6 million of unamortized deferred financing costs, inclusive of unamortized initial issuance costs transferred from the 2022 Term Loan Facility, remained to be amortized through the maturity date of the 2024 Term Loan Facility.

(3)The maturity date may be extended by two 12-month periods, at the Operating Partnership’s election.

In September 2024, the Operating Partnership repaid the remaining $120.0 million outstanding on its 2022 Term Loan Facility. The following table summarizes the balance and terms of our 2022 Term Loan Facility as of December 31, 2023:


	2022 Term Loan Facility
	December 31, 2023
	(in thousands)
Outstanding borrowings	$	520,000
Remaining borrowing capacity	—
Total borrowing capacity	$	520,000
Interest rate (1)	6.41		%
Undrawn facility fee-annual rate (2)	0.200%
Maturity date	October 3, 2024

____________________

(1)Our 2022 Term Loan Facility interest rate was calculated using Adjusted SOFR plus a margin of 0.950% based on our credit rating as of December 31, 2023.

(2)Our undrawn facility fee was paid on a quarterly basis and was calculated based on the remaining borrowing capacity. In addition to the facility fee, we incurred debt origination and legal costs. As of December 31, 2023, $2.3 million of unamortized deferred financing costs remained to be amortized through the maturity date of our 2022 Term Loan Facility.

Debt Covenants and Restrictions

The unsecured revolving credit facility, unsecured term loan facility, the unsecured senior notes, including the private placement notes, and certain other secured debt arrangements contain covenants and restrictions requiring us to meet certain financial ratios and reporting requirements. Some of the more restrictive financial covenants include a maximum ratio of total debt to total asset value, a minimum fixed-charge coverage ratio, a maximum ratio of secured debt to total asset value, a minimum unsecured debt ratio, and a minimum unencumbered asset pool debt service coverage ratio. Noncompliance with one or more of the covenants and restrictions could result in the full principal balance of the associated debt becoming immediately due and payable. We were in compliance with all of our debt covenants as of September 30, 2024.

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Debt Maturities

The following table summarizes the stated debt maturities and scheduled amortization payments for all outstanding debt as of September 30, 2024:


Year	(in thousands)
Remaining 2024	$	405,235
2025 (1)	606,246
2026	401,317
2027	249,125
2028	400,000
2029	475,000
Thereafter	2,500,000
Total aggregate principal value	5,036,923
Less: unamortized net discounts and deferred financing costs (2)	(35,767)
Total debt, net	$	5,001,156

________________________

(1)Includes the $200.0 million outstanding as of September 30, 2024 on the 2024 Term Loan Facility, for which the Company has two 12-month extension options.

(2)Includes $27.0 million of unamortized deferred financing costs for the unsecured term loan facility, unsecured senior notes, and secured debt and $8.8 million of unamortized discounts for the unsecured senior notes. Excludes unamortized deferred financing costs on the unsecured revolving credit facility, which are included in prepaid expenses and other assets, net on our consolidated balance sheets.

Capitalized Interest and Loan Fees

The following table sets forth gross interest expense, including debt discount and deferred financing cost amortization, net of capitalized interest, for the three and nine months ended September 30, 2024 and 2023. The interest expense capitalized was recorded as a cost of development and redevelopment and increased the carrying value of undeveloped land and construction in progress.


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
	(in thousands)
Gross interest expense	$	57,235	$	49,893	$	173,191	$	139,148
Capitalized interest and deferred financing costs	(20,827)		(20,056)		(61,149)		(57,257)
Interest expense	$	36,408	$	29,837	$	112,042	$	81,891

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

6. Stockholders’ Equity of the Company

At-The-Market Stock Offering Program

In March 2024, the Company terminated its at-the-market (“ATM”) stock offering program (the “2018 ATM Program”) and commenced a new at-the-market stock offering program (the “2024 ATM”), under which we may currently offer and sell shares of our common stock having an aggregate gross sales price up to $500.0 million from time to time in “at-the-market” offerings. In connection with the 2024 ATM Program, the Company may also, at its discretion, enter into forward equity sale agreements. The use of forward equity sale agreements allows the Company to lock in a share price on the sale of shares of our common stock at the time an agreement is executed, but defer settling the forward equity sale agreements and receiving the proceeds from the sale of shares until a later date. The Company did not complete any sales of common stock under either program during the nine months ended September 30, 2024.

Share Repurchase Program

In February 2024, the Company’s Board of Directors approved a new share repurchase program (the “Share Repurchase Program”) that authorizes the repurchase of shares of the Company’s common stock having an aggregate gross purchase price of up to $500.0 million. The Share Repurchase Program supersedes and replaces the Company’s previous share repurchase program. Under the Share Repurchase Program, repurchases may be made from time to time using a variety of methods, which may include open market purchases and privately negotiated transactions. The specific timing, price, and size of purchases will depend on prevailing stock prices, general economic and market conditions, and other considerations. The Share Repurchase Program does not have a termination date and repurchases may be discontinued at any time. The Company did not repurchase any common stock under the Share Repurchase Program during the nine months ended September 30, 2024.

7. Noncontrolling Interests on the Company’s Consolidated Financial Statements

Common Units of the Operating Partnership

The Company owned an approximate 99.0% common general partnership interest in the Operating Partnership as of September 30, 2024 and December 31, 2023. The remaining approximate 1.0% common limited partnership interest as of September 30, 2024 and December 31, 2023 was owned by non-affiliated investors and a former executive officer and director in the form of noncontrolling common units. There were 1,150,574 common units outstanding held by these investors and a former executive officer and director as of September 30, 2024 and December 31, 2023.

The noncontrolling common units may be redeemed by unitholders for cash. Except under certain circumstances, we, at our option, may satisfy the cash redemption obligation with shares of the Company’s common stock on a one-for-one basis. If satisfied in cash, the value for each noncontrolling common unit upon redemption is the amount equal to the average of the closing quoted price per share of the Company’s common stock, par value $0.01 per share, as reported on the NYSE for the ten trading days immediately preceding the applicable redemption date. The aggregate value upon redemption of the then-outstanding noncontrolling common units was $45.4 million and $47.0 million as of September 30, 2024 and December 31, 2023, respectively. This redemption value does not necessarily represent the amount that would be distributed with respect to each noncontrolling common unit in the event of our termination or liquidation. In the event of our termination or liquidation, it is generally expected that each common unit would be entitled to a liquidating distribution equal to the liquidating distribution payable in respect of each share of the Company’s common stock.

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

8. Share-Based Compensation

Stockholder Approved Share-Based Incentive Compensation Plan

As of September 30, 2024, we maintained one share-based incentive compensation plan, the Kilroy Realty 2006 Incentive Award Plan, as amended (the “2006 Plan”). The Company has a currently effective registration statement registering 12.6 million shares of our common stock for possible issuance under our 2006 Plan. As of September 30, 2024, approximately 2.6 million shares were available for grant under the 2006 Plan. The calculation of shares available for grant is presented after taking into account a reserve for a sufficient number of shares to cover the vesting and payment of 2006 Plan awards that were outstanding on that date, including performance-based vesting awards at (i) levels actually achieved for the performance conditions (as defined below) for which the performance period has been completed and (ii) at maximum levels for the other performance and market conditions (as defined below) for awards still in a performance period.

Executive Transitions

On January 21, 2024, John Kilroy retired as the Company's Chief Executive Officer (“CEO”) while remaining Chair and a member of the Board of Directors through May 22, 2024. On January 22, 2024, Angela Aman joined the Company as CEO and a member of the Board of Directors and was granted 101,627 Time-Based Restricted Stock Units (“RSUs”) with a one-year vesting period.

On July 30, 2024, the Company’s Board of Directors appointed Jeffrey Kuehling to serve as Executive Vice President, Chief Financial Officer (“CFO”), effective August 19, 2024, and he was granted 20,373 Time-Based RSUs with a 1.4-year vesting period. In connection with Mr. Kuehling’s appointment as CFO, Eliott Trencher no longer serves as the Company’s CFO. Mr. Trencher will continue to serve as the Company’s Executive Vice President, Chief Investment Officer.

2024 Share-Based Compensation Grants

In February 2024, the Executive Compensation Committee of the Company’s Board of Directors awarded 501,594 restricted stock units to certain officers of the Company under the 2006 Plan, which included 265,205 RSUs (at the target level of performance) that are subject to time, market, and/or performance-based vesting requirements (the “2024 Performance-Based RSUs”) and 236,389 RSUs that are subject to time-based vesting requirements (the “2024 Time-Based RSUs”). Each RSU granted is entitled to earn dividend equivalents in the form of RSUs that vest upon vesting of the underlying RSU award.

2024 Performance-Based RSU Grant

The 2024 Performance-Based RSUs are scheduled to vest at the end of a three year period (consisting of calendar years 2024-2026). A target number of 2024 Performance-Based RSUs were awarded, and the final number of 2024 Performance-Based RSUs that vest (which may be more or less than the target number) will be based upon (1) during the first calendar year of the three year performance measurement period, the achievement of pre-set FFO per share goals that applies to 100% of the Performance-Based RSUs awarded (the “FFO Performance Condition”) and (2) a performance measure that applies to 50% of the award based upon a measure of the Company’s average net debt to EBITDA ratio for the three year performance period (the “Net Debt to EBITDA Ratio Performance Condition”) and a market measure that applies to the other 50% of the award based upon the relative ranking of the Company’s total stockholder return for the three year performance period compared to the total stockholder returns of an established comparison group of companies over the same period (the “Market Condition”). The 2024 Performance-Based RSUs are also subject to a three year service vesting provision (the “service vesting condition”) and are scheduled to cliff vest on the date the final vesting percentage is determined following the end of the three year performance period under the awards. The number of 2024 Performance-Based RSUs ultimately earned could fluctuate from the target number of 2024 Performance-Based RSUs granted based upon the levels of achievement for the FFO Performance Condition, the Net Debt to EBITDA Ratio Performance Condition, the Market Condition, and the extent to which the service vesting condition is satisfied. The estimate of the number of 2024 Performance-Based RSUs earned is evaluated quarterly during the performance period based on our estimate for each of the performance conditions measured against the applicable goals.

Compensation expense for the 2024 Performance-Based RSUs is recognized on a straight-line basis over the requisite service period for each participant, which is generally the three year service period. During the nine months ended September 30, 2024, we recognized $2.5 million of compensation expense for the 2024 Performance-Based RSUs assuming the 2024 FFO Performance Condition is met at 150% of target level of achievement (175% for our CEO) and the 2024 Net Debt to EBITDA

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Ratio Performance Condition is met at 100% of the target level of achievement. In the event we achieve a lower level of performance or fail to meet the FFO Performance Condition, we would reverse a portion or all of the $2.5 million of compensation expense.

Each 2024 Performance-Based RSU represents the right to receive one share of our common stock in the future subject to, and as modified by, the Company’s level of achievement of the applicable performance and market conditions. The fair value of the portion of the award subject to the Net Debt to EBITDA Ratio Performance Condition was calculated using the closing price of the Company’s common stock on the valuation date noted below. The fair value of the portion of the award subject to the Market Condition was calculated using a Monte Carlo simulation pricing model based on the assumptions in the table below, which resulted in the following grant date fair value per share.


			Fair Value Assumptions
Valuation date			February 1, 2024
Fair value per share on valuation date (1)			$36.00
Expected share price volatility			34.0%
Risk-free interest rate			3.98%

________________________

(1)For one participant, the fair value per share on the valuation date for their 2024 Performance-Based RSUs is $36.43.

The computation of expected volatility was based on a blend of the historical volatility of our shares of common stock over a period of twice the remaining performance period as of the grant date and implied volatility data based on the observed pricing of six month publicly-traded options on shares of our common stock. The risk-free interest rate was based on the yield curve on zero-coupon U.S. Treasury STRIP securities in effect at February 1, 2024.

The fair value of the 2024 Performance-Based RSU grant as of the valuation date noted above, based on a target level of achievement, was $9.5 million. For the three and nine months ended September 30, 2024, we recorded compensation expense based upon the grant date fair value per share for each component multiplied by the estimated number of RSUs to be earned.

2024 Time-Based RSU Grants

The 2024 Time-Based RSUs are scheduled to vest in three equal annual installments beginning on January 5, 2025 through January 5, 2027. Compensation expense for the 2024 Time-Based RSUs is recognized on a straight-line basis over the requisite service period, which is generally the explicit service period. Each 2024 Time-Based RSU represents the right to receive one share of our common stock in the future, subject to continued employment through the applicable vesting date, unless accelerated upon separation of employment, provided certain conditions are met. The total grant date fair value of the 2024 Time-Based RSU awards was $8.3 million, which was based on the $35.20 closing share price of the Company’s common stock on the NYSE on the February 1, 2024 grant date.

2023 and 2022 Performance-Based RSUs

Consistent with the 2024 Performance-Based RSU grant discussed above, the final number of 2023 and 2022 Performance-Based RSUs that vest will be based upon (1) the FFO Performance Condition that applies to 100% of the Performance-Based RSUs awarded as determined at the end of the first calendar year of the performance measurement period and (2) the Net Debt to EBITDA Ratio Performance Condition that applies to 50% of the award and the Market Condition that applies to the other 50% of the award, both of which are based on the full three-year performance measurement period. The 2023 FFO Performance Condition was achieved at 150% of the target level of achievement. The 2022 FFO Performance Condition was achieved at 150% of the target level of achievement.

Compensation cost for the 2023 Performance-Based RSUs for the three and nine months ended September 30, 2024 assumes the 2023 Net Debt to EBITDA Ratio Performance Condition is met at 150% of the target level of achievement. Compensation cost for the 2022 performance-based RSUs for the three and nine months ended September 30, 2024 assumes the 2022 Net Debt to EBITDA Ratio Performance Condition is met at 150% of the target level of achievement.

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Share-Based Compensation Cost Recorded During the Period

The total compensation cost for all share-based compensation programs was $6.7 million and $12.3 million for the three months ended September 30, 2024 and 2023, respectively, and $18.4 million and $33.4 million for the nine months ended September 30, 2024 and 2023, respectively. Share-based compensation costs for the three and nine months ended September 30, 2023 include $8.0 million and $21.2 million, respectively, of accelerated share-based compensation costs for our former CEO and former President. Of the total share-based compensation costs, $2.1 million and $5.1 million were capitalized as part of real estate assets for the three and nine months ended September 30, 2024, respectively, and $1.7 million and $5.0 million were capitalized as part of real estate assets for the three and nine months ended September 30, 2023, respectively. As of September 30, 2024, there was approximately $30.3 million of total unrecognized compensation cost related to nonvested RSUs granted under share-based compensation arrangements. Such amount is based in part upon the estimated future outcome of the performance metrics as of September 30, 2024, and the actual compensation cost ultimately recognized could increase or decrease from this estimate based upon actual performance results. These costs are expected to be recognized over a weighted-average period of 1.7 years. The remaining compensation cost related to these nonvested RSU awards had been recognized in periods prior to September 30, 2024.

9. Rental Income and Future Minimum Rent

Our rental income is primarily comprised of payments defined under leases and generally are subject to scheduled fixed increases. Additionally, rental income includes variable payments for tenant reimbursements of property-related expenses and payments based on a percentage of tenant sales.

The table below sets forth the allocation of rental income between fixed and variable payments and net collectability reversals for the three and nine months ended September 30, 2024 and 2023:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
	(in thousands)
Fixed lease payments	$	234,812	$	232,090	$	691,596	$	713,254
Variable lease payments	51,907		49,232		149,821		142,771
Net collectability reversals (1)	(768)		(641)		(4,657)		(3,931)
Total rental income	$	285,951	$	280,681	$	836,760	$	852,094

_____________________

(1)Represents adjustments to rental income related to our assessment of the collectability of amounts due under leases with our tenants, including recognition of deferred rent balances associated with tenants moved to / restored from a cash basis of revenue recognition and allowances for uncollectible receivables.

We have operating leases with tenants that expire at various dates through 2049 and may be subject to scheduled fixed increases and future renewal options. Generally, the leases grant tenants renewal options. Leases also provide for additional rents based on certain operating expenses. Future contractual minimum rent under operating leases, which includes amounts contractually due from leases that are on a cash basis of reporting due to creditworthiness considerations, as of September 30, 2024 for future periods is summarized as follows:


Year Ending	(in thousands)
Remaining 2024	$	204,645
2025	815,864
2026	775,705
2027	720,685
2028	678,862
2029	589,121
Thereafter	1,520,529
Total (1)	$	5,305,411

_____________________

(1)Excludes residential leases and leases with a term of one year or less.

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

10. Commitments and Contingencies

General

As of September 30, 2024, we had commitments of approximately $196.1 million, excluding our ground lease commitments, for contracts and executed leases directly related to our operating, development, and redevelopment properties.

Ground Leases

The following table summarizes our properties that are held subject to long-term noncancellable ground lease obligations as of September 30, 2024 and the respective contractual expiration dates:


Property			Contractual Expiration Date
701, 801, and 837 N. 34th Street, Seattle, WA (1)			December 2041
1701 Page Mill Road and 3150 Porter Drive, Palo Alto, CA			December 2067
Kilroy Airport Center Phases I, II, and III, Long Beach, CA (2)			July 2084
3243 S. La Cienega Boulevard, Los Angeles, CA			October 2106
200 W. 6th Street, Austin, TX			December 2112

____________________

(1) The Company has three 10-year and one 45-year extension options for this Seattle ground lease, which if exercised would extend the expiration date to December 2116. These extension options are not assumed to be exercised in our calculation of the present value of the future minimum lease payments for this lease. The Company also has a purchase option for this ground lease.

(2) Assumes the impact of all extension options held by the Company.

To determine the discount rates used to calculate the present value of the minimum future lease payments for our ground leases, we used a hypothetical curve derived from unsecured corporate borrowing rates over the lease term. The weighted average discount rate used to determine the present value of our minimum lease payments was 4.67%. As of September 30, 2024, the weighted average remaining lease term of our ground leases is 63 years. For the three months ended September 30, 2024 and 2023, variable lease costs totaling $1.2 million and $1.0 million, respectively, were recorded to ground leases expense on our consolidated statements of operations. For the nine months ended September 30, 2024 and 2023, variable lease costs totaling $3.5 million and $3.0 million, respectively, were recorded to ground leases expense on our consolidated statements of operations.

The minimum commitment under our ground leases, as of September 30, 2024, for future periods is as follows:


Year Ending	(in thousands)
Remaining 2024	$	1,684
2025	6,772
2026	6,809
2027	6,850
2028	6,869
2029	6,869
Thereafter	367,744
Total undiscounted cash flows (1)(2)(3)(4)(5)(6)	$	403,597
Present value discount	(274,991)
Ground lease liabilities	$	128,606

________________________

(1)Excludes contingent future rent payments based on gross income or adjusted gross income and reflects the minimum obligations under the ground leases including any extension options (but excludes the Seattle ground lease extension options).

(2) One of our ground lease obligations is subject to a fair market value adjustment every five years. The contractual obligations for that lease included above assume the current annual ground lease obligation in effect at September 30, 2024 for the remainder of the lease term, as we cannot predict future adjustments.

(3) One of our ground lease obligations is subject to a fair market value adjustment every five years based on a combination of CPI adjustments and third-party appraisals limited to maximum increases annually. The contractual obligations for that lease included above assume the contractual minimum annual rent prior to the consideration of any variable rental payments in effect at September 30, 2024 for the remainder of the lease term, as we cannot predict future adjustments.

(4) One of our ground lease obligations includes a component that is based on the percentage of adjusted gross income that exceeds the minimum ground rent. The minimum rent is subject to increases every 10 years by an amount equal to 60% of the average annual percentage rent for the previous three years. The contractual obligations for this lease included above assume the current annual ground lease obligation in effect at September 30, 2024 for the remainder of the lease term, as we cannot predict future adjustments.

(5) One of our ground lease obligations is subject to fixed 5% ground rent increases every five years, with the next increase occurring on November 1, 2027.

(6) One of our ground lease obligations is subject to fixed 2% ground rent increases every year, with ground rent resets occurring every ten years based on CPI. The contractual obligations for that lease included above assume increases for the remaining current ten-year period based on the contractual minimum annual rent prior to the consideration of any variable rental payments in effect at September 30, 2024.

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Environmental Matters

As of September 30, 2024, we had accrued environmental remediation liabilities of approximately $72.1 million in connection with certain of our in-process and future development projects.

11. Fair Value Measurements and Disclosures

Assets and Liabilities Reported at Fair Value

The only assets we record at fair value on our consolidated financial statements are the marketable securities related to our Deferred Compensation Plan. The following table sets forth the fair value of our Deferred Compensation Plan assets as of September 30, 2024 and December 31, 2023:


	Fair Value (Level 1) (1)
	September 30, 2024		December 31, 2023
Description	(in thousands)
Deferred Compensation Plan assets (2)	$	27,144	$	28,089

________________________

(1) Based on quoted prices in active markets for identical securities.

(2) The Deferred Compensation Plan assets are held in a limited rabbi trust.

Financial Instruments Disclosed at Fair Value

The following table sets forth the carrying value and the fair value of our other financial instruments as of September 30, 2024 and December 31, 2023:


	September 30, 2024				December 31, 2023
	Carrying Value		Fair Value (1)		Carrying Value		Fair Value (1)
	(in thousands)
Assets
Certificates of deposit (2)	$	—	$	—	$	256,581	$	256,581
Liabilities
Secured debt, net	$	599,478	$	591,319	$	603,225	$	585,826
Unsecured debt, net	$	4,401,678	$	4,143,923	$	4,325,153	$	3,927,104

________________________

(1)Fair value calculated using Level 2 inputs, which are based on model-derived valuations in which significant inputs and significant value drivers are observable in active markets.

(2)The carrying value of the certificates of deposit approximate their fair values due to their short-term maturities. See Note 3 “Marketable Securities” for additional information.

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

12. Net Income Available to Common Stockholders Per Share of the Company

The following table reconciles the numerator and denominator in computing the Company’s basic and diluted per-share computations for net income available to common stockholders for the three and nine months ended September 30, 2024 and 2023:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
	(in thousands, except share and per share amounts)
Numerator:
Net income available to common stockholders	$	52,378	$	52,762	$	151,509	$	164,957

Allocation to participating securities (1)	(173)		(269)		(1,792)		(959)
Numerator for basic and diluted net income available to common stockholders	$	52,205	$	52,493	$	149,717	$	163,998
Denominator:
Basic weighted average vested shares outstanding	117,830,481		117,184,609		117,515,623		117,133,420
Effect of dilutive securities	413,432		310,637		439,140		277,975
Diluted weighted average vested shares and common stock equivalents outstanding	118,243,913		117,495,246		117,954,763		117,411,395
Basic earnings per share:
Net income available to common stockholders per share	$	0.44	$	0.45	$	1.27	$	1.40
Diluted earnings per share:
Net income available to common stockholders per share	$	0.44	$	0.45	$	1.27	$	1.40

________________________

(1)Participating securities include certain time-based RSUs and vested market measure-based RSUs.

Share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are considered participating securities. The impact of potentially dilutive common shares, including stock options and RSUs are considered in our diluted earnings per share calculation for the three and nine months ended September 30, 2024 and 2023. Certain market measure-based RSUs are not included in dilutive securities for the three and nine months ended September 30, 2024 and 2023, as not all performance metrics had been met by the end of the applicable reporting periods. Additionally, certain unvested time-based RSUs are not included in dilutive securities for the nine months ended September 30, 2024 and nine months ended September 30, 2023, as they were anti-dilutive. See Note 8 “Share-Based Compensation” for additional information regarding share-based compensation.

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

13. Net Income Available to Common Unitholders Per Unit of the Operating Partnership

The following table reconciles the numerator and denominator in computing the Operating Partnership’s basic and diluted per-unit computations for net income available to common unitholders for the three and nine months ended September 30, 2024 and 2023:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
	(in thousands, except unit and per unit amounts)
Numerator:
Net income available to common unitholders	$	52,887	$	53,277	$	152,978	$	166,569

Allocation to participating securities (1)	(173)		(269)		(1,792)		(959)
Numerator for basic and diluted net income available to common unitholders	$	52,714	$	53,008	$	151,186	$	165,610
Denominator:
Basic weighted average vested units outstanding	118,981,055		118,335,183		118,666,197		118,283,994
Effect of dilutive securities	413,432		310,637		439,140		277,975
Diluted weighted average vested units and common unit equivalents outstanding	119,394,487		118,645,820		119,105,337		118,561,969
Basic earnings per unit:
Net income available to common unitholders per unit	$	0.44	$	0.45	$	1.27	$	1.40
Diluted earnings per unit:
Net income available to common unitholders per unit	$	0.44	$	0.45	$	1.27	$	1.40

________________________

(1)Participating securities include certain time-based RSUs and vested market measure-based RSUs.

Share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are considered participating securities. The impact of potentially dilutive common units, including stock options and RSU are considered in our diluted earnings per share calculation for the three and nine months ended September 30, 2024 and 2023. Certain market measure-based RSUs are not included in dilutive securities for the three and nine months ended September 30, 2024 and 2023, as not all performance metrics had been met by the end of the applicable reporting periods. Additionally, certain unvested time-based RSUs are not included in dilutive securities for the nine months ended September 30, 2024 and nine months ended September 30, 2023, as they were anti-dilutive. See Note 8 “Share-Based Compensation” for additional information regarding share-based compensation.

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

14. Supplemental Cash Flows Information of the Company

Supplemental cash flows information as follows (in thousands):


	Nine Months Ended September 30,
	2024		2023
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $57,839 and $53,637 as of September 30, 2024 and 2023, respectively	$	86,410	$	60,528
Cash paid for amounts included in the measurement of ground lease liabilities	$	5,156	$	4,939
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	$	60,072	$	98,631
Tenant improvements funded directly by tenants	$	2,204	$	6,026
Remeasurement of ground lease liability and related right of use ground lease asset	$	4,782	$	—






NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders	$	64,844	$	64,423

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2024 and 2023.


	Nine Months Ended September 30,
	2024		2023
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	510,163	$	347,379
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	510,163	$	347,379

Cash and cash equivalents at end of period	$	625,395	$	618,794
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	625,395	$	618,794

15. Supplemental Cash Flows Information of the Operating Partnership

Supplemental cash flows information as follows (in thousands):


	Nine Months Ended September 30,
	2024		2023
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $57,839 and $53,637 as of September 30, 2024 and 2023, respectively	$	86,410	$	60,528
Cash paid for amounts included in the measurement of ground lease liabilities	$	5,156	$	4,939
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	$	60,072	$	98,631
Tenant improvements funded directly by tenants	$	2,204	$	6,026
Remeasurement of ground lease liability and related right of use ground lease asset	$	4,782	$	—






NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders	$	64,844	$	64,423

KILROY REALTY CORPORATION AND KILROY REALTY, L.P.

NOTES TO UNAUDITED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2024 and 2023.


	Nine Months Ended September 30,
	2024		2023
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	510,163	$	347,379
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	510,163	$	347,379

Cash and cash equivalents at end of period	$	625,395	$	618,794
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	625,395	$	618,794

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion relates to our consolidated financial statements and should be read in conjunction with the financial statements and notes thereto appearing elsewhere in this report. The results of operations discussion is combined for the Company and the Operating Partnership because there are no material differences in the results of operations between the two reporting entities.

Forward-Looking Statements

Statements contained in this “Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations” that are not historical facts may be forward-looking statements. Forward-looking statements include, among other things, statements or information concerning our plans, objectives, capital resources, portfolio performance, results of operations, projected future occupancy and rental rates, lease expirations, debt maturities, potential investments, strategies such as capital recycling, development and redevelopment activity, projected construction costs, projected construction commencement and completion dates, projected square footage of space that could be constructed on undeveloped land that we own, projected rentable square footage of or number of units in properties under construction or in the development pipeline, anticipated proceeds from capital recycling activity or other dispositions and anticipated dates of those activities or dispositions, projected increases in the value of properties, dispositions, future executive incentive compensation, pending, potential or proposed acquisitions, plans to grow our Net Operating Income and FFO, our ability to re-lease properties at or above current market rates, anticipated market conditions and demographics and other forward-looking financial data, as well as the discussion in “—Factors That May Influence Future Results of Operations,” “—Liquidity and Capital Resource of the Company,” and “—Liquidity and Capital Resources of the Operating Partnership.” Forward-looking statements can be identified by the use of words such as “believes,” “expects,” “projects,” “may,” “will,” “should,” “seeks,” “approximately,” “intends,” “plans,” “pro forma,” “estimates”, or “anticipates” and the negative of these words and phrases and similar expressions that do not relate to historical matters. Forward-looking statements are based on our current expectations, beliefs, and assumptions, and are not guarantees of future performance. Forward-looking statements are inherently subject to uncertainties, risks, changes in circumstances, trends, and factors that are difficult to predict, many of which are outside of our control. Accordingly, actual performance, results, and events may vary materially from those indicated or implied in the forward-looking statements, and you should not rely on the forward-looking statements as predictions of future performance, results, or events. Numerous factors could cause actual future performance, results, and events to differ materially from those indicated in the forward-looking statements, including, among others: global market and general economic conditions, including periods of heightened inflation, and their effect on our liquidity and financial conditions and those of our tenants; adverse economic or real estate conditions generally, and specifically, in the States of California, Texas, and Washington; risks associated with our investment in real estate assets, which are illiquid, and with trends in the real estate industry; defaults on or non-renewal of leases by tenants; any significant downturn in tenants’ businesses, including bankruptcy, lack of liquidity or lack of funding, and the impact labor disruptions or strikes, such as episodic strikes in the entertainment industry, may have on our tenants’ businesses; our ability to re-lease property at or above current market rates; reduced demand for office space, including as a result of remote working and flexible working arrangements that allow work from remote locations other than an employer’s office premises; costs to comply with government regulations, including environmental remediation; the availability of cash for distribution and debt service, and exposure to risk of default under debt obligations; increases in interest rates and our ability to manage interest rate exposure; changes in interest rates and the availability of financing on attractive terms or at all, which may adversely impact our future interest expense and our ability to pursue development, redevelopment, and acquisition opportunities and refinance existing debt; a decline in real estate asset valuations, which may limit our ability to dispose of assets at attractive prices, or obtain or maintain debt financing, and which may result in write-offs or impairment charges; significant competition, which may decrease the occupancy and rental rates of properties; potential losses that may not be covered by insurance; the ability to successfully complete acquisitions and dispositions on announced terms; the ability to successfully operate acquired, developed, and redeveloped properties; the ability to successfully complete development and redevelopment projects on schedule and within budgeted amounts; delays or refusals in obtaining all necessary zoning, land use, and other required entitlements, governmental permits and authorizations for our development and redevelopment properties; increases in anticipated capital expenditures, tenant improvement, and/or leasing costs; defaults on leases for land on which some of our properties are located; adverse changes to, or enactment or implementations of, tax laws or other applicable laws, regulations, or legislation, as well as business and consumer reactions to such changes; risks associated with joint venture investments, including our lack of sole decision-making authority, our reliance on co-venturers’ financial condition, and disputes between us and our co-venturers; environmental uncertainties and risks related to natural disasters; risks associated with climate change and our sustainability strategies, and our ability to achieve our sustainability goals; and our ability to maintain our status as a REIT. The factors included in this report are not exhaustive and additional factors could adversely affect our business and financial performance. For a discussion of additional factors that could materially adversely affect the

Company’s and the Operating Partnership’s business and financial performance, see the discussion below, as well as in “Part I, Item 1A. Risk Factors” and “Part II, Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the Company’s and the Operating Partnership’s annual report on Form 10-K for the year ended December 31, 2023, and their respective other filings with the SEC. All forward-looking statements are based on currently available information and speak only as of the dates on which they are made. We assume no obligation to update any forward-looking statement that becomes untrue because of subsequent events, new information, or otherwise, except to the extent we are required to do so in connection with our ongoing requirements under federal securities laws.

Overview and Background

We are a self-administered REIT active in premier office, life science, and mixed-use property types in the United States. We own, develop, acquire, and manage real estate assets, consisting primarily of premier properties in Los Angeles, San Diego, the San Francisco Bay Area, Seattle, and Austin, which are markets that we believe have strategic advantages and strong barriers to entry. We own our interests in all of our real estate assets through the Operating Partnership and conduct substantially all of our operations through the Operating Partnership. We owned an approximate 99.0% general partnership interest in the Operating Partnership as of September 30, 2024 and December 31, 2023. As of September 30, 2024, all of our properties are held in fee except for the fourteen office buildings that are held subject to long-term ground leases.

Factors That May Influence Future Results of Operations

Development and Redevelopment Programs

We believe that a portion of our long-term future growth will continue to come from the completion of our in-process development and redevelopment projects and, subject to market conditions, from identifying new redevelopment opportunities and executing on our future development pipeline. Our future development pipeline may also expand in the future through targeted acquisitions of development opportunities on the West Coast and in Austin, Texas, subject to market conditions.

We have a proactive planning process by which we continually evaluate the size, timing, costs, and scope of our development and redevelopment programs and, as necessary, scale activity to reflect the economic conditions and the real estate fundamentals that exist in our submarkets. We expect to execute on our development and redevelopment programs with prudence and will be pursuing opportunities with attractive economic returns in strategic locations with proximity to public transportation or transportation access, retail amenities, and in markets with strong fundamentals and visible demand. We generally plan to develop projects in phases, as appropriate, and we favor starting projects with significant pre-leasing activity.

In-Process Redevelopment - Tenant Improvement

As of September 30, 2024, we had two redevelopment projects in the tenant improvement phase:

•4690 Executive Drive, University Towne Center, San Diego, California. In March 2022, we began the phased redevelopment of this property and completed base building components and moved the building to the tenant improvement phase during the third quarter of 2024. This project is comprised of approximately 52,000 square feet of life science space with a total estimated investment of $25.0 million, inclusive of the depreciated basis of the building.

•4400 Bohannon Drive, Menlo Park, California. In December 2022, we began the redevelopment of this property in the Other Peninsula submarket and completed base building components and moved the building to the tenant improvement phase during the third quarter of 2024. This project is comprised of approximately 48,000 square feet of life science space with a total estimated investment of $55.0 million, inclusive of the depreciated basis of the building.

In-Process Development - Under Construction

As of September 30, 2024, we had one development project under construction:

•Kilroy Oyster Point (Phase 2), South San Francisco, California. In June 2021, we commenced construction on Phase 2 of this 39-acre life science campus situated on the waterfront in South San Francisco. The second phase encompasses approximately 875,000 square feet of office and life science space across three buildings with a total estimated investment of $1.0 billion.

Future Development Pipeline

As of September 30, 2024, our future development pipeline included eight future projects located in Los Angeles, San Diego, the San Francisco Bay Area, Seattle, and Austin with an aggregate cost basis of approximately $1.4 billion, at which we believe we could develop more than 6.0 million rentable square feet, subject to market conditions and the entitlement of these projects.

The following table sets forth information about our future development pipeline:

Future Development Pipeline

Location

Approx. Developable Square Feet / Residential Units (1)

Total Costs

as of 9/30/2024

($ in millions) (2)

Los Angeles

1633 26th Street

West Los Angeles

190,000

15.1

San Diego

Santa Fe Summit South / North

56 Corridor

600,000 - 650,000

116.2

2045 Pacific Highway

Little Italy

275,000

60.4

Kilroy East Village

East Village

1,100 units

68.0

San Francisco Bay Area

Kilroy Oyster Point - Phases 3 and 4

South San Francisco

875,000 - 1,000,000

242.3

Flower Mart

SOMA

2,300,000

654.6

Seattle

SIX0

Denny Regrade

925,000 and 650 units

195.5

Austin

Stadium Tower

Stadium District / Domain

493,000

74.3

TOTAL:

1,426.4

________________________

(1)Represents developable office/life science square feet and/or residential units. The developable square feet and scope of projects could change materially from estimated data provided due to one or more of the following: significant changes in the economy, market conditions, tenant requirements and demands, construction costs, new supply, regulatory and entitlement processes, or project design.

(2)Represents cash paid and costs incurred, including accrued liabilities in accordance with GAAP, as of September 30, 2024.

Fluctuations in our development activities could cause fluctuations in the average development asset balances qualifying for interest and other carrying cost and internal cost capitalization in future periods. A slowdown in development activities could result in fewer projects qualifying for interest capitalization under GAAP, resulting in higher interest expense. During the three and nine months ended September 30, 2024, we capitalized interest on in-process development and redevelopment projects and future development pipeline projects with an average aggregate cost basis of approximately $1.9 billion as it was determined these projects qualified for interest and other carrying cost capitalization under GAAP. For the three and nine months ended September 30, 2024, we capitalized $20.8 million and $61.1 million, respectively, of interest to our qualifying development and redevelopment projects. In addition, for the three and nine months ended September 30, 2024, we capitalized $3.4 million and $9.3 million, respectively, of internal costs to our qualifying development and redevelopment projects and $2.1 million and $6.7 million, respectively, of internal costs to our qualifying capital improvement projects in the stabilized portfolio.

Capital Recycling Program. We continuously evaluate opportunities for the potential disposition of non-core properties in our portfolio or the formation of strategic ventures with the intent of using the proceeds generated to acquire new operating and development properties, to finance development and redevelopment expenditures, to repay long-term debt, and for other general corporate purposes. As part of this strategy, we often attempt to enter into transactions intended to qualify as like-kind exchanges pursuant to Section 1031 of the Code (“Section 1031 Exchanges”) and other tax deferred transaction structures, when possible, to defer some or all of the taxable gains on the sales, if any, for federal and state income tax purposes. See the “Liquidity and Capital Resources of the Operating Partnership – Liquidity Sources” section for further discussion of our capital recycling activities.

Section 1031 Exchange or be able to use other tax deferred structures in connection with our strategy. See the “Liquidity and Capital Resources of the Operating Partnership – Liquidity Sources” section for further information.

Acquisitions. During the nine months ended September 30, 2024, we acquired one operating property, comprised of two buildings, in one transaction for a cash purchase price of $35.0 million. As part of our growth strategy, which is highly dependent on market conditions and business cycles, among other factors, we continue to evaluate strategic opportunities and remain a disciplined buyer of core, value-add and strategic operating properties, and land. We focus on growth opportunities primarily in markets populated by knowledge and creative-based tenants in a variety of industries, including technology, media, healthcare, life sciences, entertainment, and professional services. Against the backdrop of market volatility, we expect to manage a strong balance sheet and selectively evaluate opportunities that we believe have the potential to either add immediate Net Operating Income to our portfolio or play a strategic role in our future growth. We generally finance our acquisitions through proceeds from the issuance of debt and equity securities, borrowings under our unsecured revolving credit facility, proceeds from our capital recycling program, the assumption of existing debt, and cash flows from operations.

In connection with our growth strategy, we may have one or more potential acquisitions of properties and/or undeveloped land under consideration that are in varying stages of negotiation and due diligence review, or under contract, at any point in time. However, we cannot provide assurance that we will enter into any agreements to acquire properties or undeveloped land, or that the potential acquisitions contemplated by any agreements we may enter into in the future will be completed. In addition, acquisitions are subject to various risks and uncertainties, and we may be unable to complete an acquisition after making a nonrefundable deposit or incurring acquisition-related costs.

Incentive Compensation. Our Executive Compensation Committee determines compensation, including cash bonuses and equity incentives, for our executive officers, as defined in Rule 16 under the Exchange Act. For 2024, the annual cash bonus program was structured to allow the Executive Compensation Committee to evaluate the Company’s performance against pre-established goals under a variety of key quantitative and qualitative metrics at the end of the year and make a determination based on the Company’s and management’s overall performance. Our Executive Compensation Committee also grants equity incentive awards from time to time that include performance-based and/or market-measure based vesting requirements and time-based vesting requirements. As a result, accrued incentive compensation and compensation expense for future awards may be affected by our operating and development performance, financial results, stock price, market conditions, liquidity measures, and other factors. Consequently, we cannot predict the amounts that will be recorded in future periods related to such incentive compensation.

As of September 30, 2024, there was approximately $30.3 million of total unrecognized compensation costs related to outstanding nonvested RSUs granted under share-based compensation arrangements. Such amount is based in part upon the estimated future outcome of the performance metrics as of September 30, 2024, and the actual compensation cost ultimately recognized could increase or decrease from this estimate based upon actual performance results. These costs are expected to be recognized over a weighted-average period of 1.7 years. The $30.3 million of unrecognized compensation cost does not reflect the future compensation costs for any share-based awards that may be granted subsequent to September 30, 2024. Share-based compensation expense for potential future awards could be affected by our operating and development performance, financial results, stock price, market conditions, and other factors. For additional information regarding our equity incentive awards, see Note 8 “Share-Based Compensation” to our consolidated financial statements included in this report.

Information on Leases Commenced and Executed

Leasing Activity and Changes in Rental Rates. The amount of net rental income generated by our properties depends principally on our ability to maintain the occupancy rates of currently leased space and to lease currently available space, newly developed or redeveloped properties, newly acquired properties with vacant space, and space available from unscheduled lease terminations. The amount of rental income we generate also depends on our ability to maintain or increase rental rates at our properties. Negative trends in one or more of these factors could adversely affect our rental income in future periods. The following tables set forth certain information regarding leasing activity during the three and nine months ended September 30, 2024.

For Leases Commenced (1)


Quarter to Date	Number of Leases		Rentable Square Feet		Weighted Average Lease Term (in months)	TI/LC per Sq. Ft. (2)		TI/LC per Sq. Ft. / Year (2)		Changes in Rents (3)		Changes in Cash Rents (3)
	New	Renewal	New	Renewal
2nd Gen Leasing (4)	14	11	109,470	151,592	80	$	108.03	$	16.21	48.3	%	22.4	%

1st Gen / Major Repositioning / In-Process Development & Redevelopment Leasing (5)	1	—	14,633	—	153	$	187.30	$	14.69
Total	15	11	124,103	151,592


Year to Date	Number of Leases		Rentable Square Feet		Weighted Average Lease Term (in months)	TI/LC per Sq. Ft. (2)		TI/LC per Sq. Ft. / Year (2)		Changes in Rents (3)		Changes in Cash Rents (3)
	New	Renewal	New	Renewal
2nd Gen Leasing (4)	39	34	307,933	334,626	62	$	63.00	$	12.19	21.8	%	6.3	%

1st Gen / Major Repositioning / In-Process Development & Redevelopment Leasing (5)	6	—	85,499	—	154	$	170.29	$	13.27
Total	45	34	393,432	334,626

For Leases Executed (1)(6)


Quarter to Date	Number of Leases		Rentable Square Feet		Weighted Average Lease Term (in months)	TI/LC per Sq. Ft. (2)		TI/LC per Sq. Ft. / Year (2)		Changes in Rents (3)		Changes in Cash Rents (3)		Retention Rates (7)
	New	Renewal	New	Renewal
2nd Gen Leasing (4)	10	11	63,630	151,592	66	$	72.64	$	13.21	26.0	%	7.1	%	33.3	%

1st Gen / Major Repositioning / In-Process Development & Redevelopment Leasing (5)	3	—	11,550	—	98	$	147.40	$	18.05
Total	13	11	75,180	151,592


Year to Date	Number of Leases		Rentable Square Feet		Weighted Average Lease Term (in months)	TI/LC per Sq. Ft. (2)		TI/LC per Sq. Ft. / Year (2)		Changes in Rents (3)		Changes in Cash Rents (3)		Retention Rates (7)
	New	Renewal	New	Renewal
2nd Gen Leasing (4)	47	34	343,617	334,626	62	$	52.26	$	10.11	12.8	%	(0.6)	%	29.8	%

1st Gen / Major Repositioning / In-Process Development & Redevelopment Leasing (5)	9	—	51,638	—	91	$	113.81	$	15.01
Total	56	34	395,255	334,626

________________________

(1)Includes 100% of consolidated property partnerships.

(2)Includes tenant improvement costs and third-party leasing commissions. Amounts exclude tenant-funded tenant improvements and indirect leasing costs.

(3)Calculated as the change between the expiring GAAP rent and the new GAAP rent and the expiring cash rent and the new cash rent for the same space. Space that was vacant when the property was acquired is excluded from our change in rents calculations to provide a more meaningful market comparison.

(4)Represents leases commenced or executed at properties in the stabilized portfolio during the period, excluding leases with a lease term of less than one year. Excludes leases commenced at space not previously leased at recently completed development projects that have been added to the stabilized portfolio and at space in the stabilized portfolio for which we are incurring significant non-recurring capital expenditures to reposition and is expected to result in additional revenue generated when re-leased.

(5)Represents leases commenced or executed at space not previously leased, recently completed development projects that have been added to the stabilized portfolio, at space in the stabilized portfolio for which we are incurring significant non-recurring capital expenditures to reposition and is expected to result in additional revenue generated when re-leased, and at projects in our development and redevelopment portfolios.

(6)During the three months ended September 30, 2024, 12 new leases totaling 73,646 rentable square feet were signed but not commenced. During the nine months ended September 30, 2024, 28 new leases totaling 242,983 rentable square feet were signed but not commenced.

(7)Calculated as the percentage of space either renewed by existing tenants at lease expiration or termination.

During the nine months ended September 30, 2024, we continued to see modest additional increases in physical occupancy and increased tour activity at our properties. However, we believe that economic uncertainty and hybrid/remote working arrangements have impacted the timing and volume of leasing and will likely continue to do so in the near future and possibly longer-term. Additionally, decreased demand (including as a result of remote work), increased competition (including sublease space available in the market), and other negative trends or unforeseeable events that impair our ability to timely renew or re-lease space could have negative effects on our future financial condition, results of operations, and cash flows.

Scheduled Lease Expirations. The following tables set forth certain information regarding our lease expirations for our stabilized portfolio, excluding our residential properties, for the remainder of 2024 and the next five years and by region for the remainder of 2024 and in 2025.

Lease Expirations (1)(2)


Year of Lease Expiration	Number of Expiring Leases	Total Square Feet	% of Total Leased Sq. Ft.		Annualized Base Rent (3)		% of Total Annualized Base Rent (3)		Annualized Base Rent per Sq. Ft. (3)
					(in thousands)
Remainder of 2024 (4)	11	284,010	2.0	%	$	17,069	2.1	%	$	60.10
2025 (4)	76	752,332	5.4	%	33,134		4.2	%	44.04
2026 (4)	69	1,895,058	13.6	%	91,231		11.4	%	48.14
2027	76	1,084,761	7.8	%	44,373		5.6	%	40.91
2028	58	1,158,042	8.3	%	71,505		9.0	%	61.75
2029	46	1,197,837	8.6	%	65,556		8.2	%	54.73
Total	336	6,372,040	45.7	%	$	322,868	40.5	%	$	50.67


Year	Region	Number of Expiring Leases	Total Square Feet	% of Total Leased Sq. Ft.		Annualized Base Rent (3)		% of Total Annualized Base Rent (3)		Annualized Rent per Sq. Ft. (3)
						(in thousands)
2024 (4)	Los Angeles	8	56,761	0.4	%	$	3,455	0.4	%	$	60.87

	San Diego	—	—	—	%	—		—	%	—
	San Francisco Bay Area	2	223,522	1.6	%	13,456		1.7	%	60.20
	Seattle	1	3,727	—	%	158		—	%	42.39
	Austin	—	—	—	%	—		—	%	—
	Total	11	284,010	2.0	%	$	17,069	2.1	%	$	60.10

2025 (4)	Los Angeles	38	220,026	1.6	%	$	9,199	1.2	%	$	41.81

	San Diego	19	219,912	1.6	%	9,042		1.1	%	41.12
	San Francisco Bay Area	8	120,729	0.9	%	8,604		1.1	%	71.27
	Seattle	11	191,665	1.3	%	6,289		0.8	%	32.81
	Austin	—	—	—	%	—		—	%	—
	Total	76	752,332	5.4	%	$	33,134	4.2	%	$	44.04

________________________

(1)For leases that have been renewed early with existing tenants, the expiration date and annualized base rent information presented takes into consideration the renewed lease terms. Excludes leases not commenced as of September 30, 2024, space leased under month-to-month leases, storage leases, vacant space, and future lease renewal options not executed as of September 30, 2024.

(2)Includes 100% of annualized base rent of consolidated property partnerships.

(3)Annualized base rent includes the impact of straight-lining rent escalations and the amortization of free rent periods and excludes the impact of the following: amortization of deferred revenue related to tenant-funded tenant improvements, amortization of above/below market rents, amortization for lease incentives due under existing leases, and expense reimbursement revenue. Additionally, the underlying leases contain various expense structures, including full service gross, modified gross, and triple net. Percentages represent percentage of total portfolio annualized contractual base rental revenue. For additional information on tenant improvement and leasing commission costs incurred by the Company for the current reporting period, please see further discussion under the caption “Information on Leases Commenced and Executed.”

(4)Adjusting for leasing transactions executed as of September 30, 2024 but not yet commenced, the 2024, 2025, and 2026 expirations would be reduced by 7,623, 64,142, and 156,785 square feet, respectively.

In addition to the 2.7 million rentable square feet, or 15.7%, of currently available space in our stabilized portfolio, leases representing approximately 7.4% of the occupied square footage of our stabilized portfolio are scheduled to expire during the remainder of 2024 and in 2025. The leases scheduled to expire during the remainder of 2024 and in 2025 represent approximately 1.0 million rentable square feet, or 6.3% of our total annualized base rental revenue. Adjusting for leases executed as of September 30, 2024 but not yet commenced, the remaining 2024, 2025, and 2026 expirations would be 276,387, 688,190, and 1,738,273 square feet, respectively.

Our rental rates and occupancy are impacted by general economic conditions, including the pace of regional economic growth and access to capital. Therefore, we cannot give any assurance that leases will be renewed or that available space will be re-leased at rental rates equal to or above the current market rates.

Sublease Space. Of our occupied space as of September 30, 2024, approximately 1.8 million rentable square feet, or 10.6% of the square footage in our stabilized portfolio, was available for sublease, primarily in the San Francisco Bay Area. Of the 10.6% of available sublease space in our stabilized portfolio as of September 30, 2024, approximately 8.7% was vacant space, and the remaining 1.9% was occupied by subtenants. Of the approximately 1.8 million rentable square feet available for sublease as of September 30, 2024, approximately 76,031 rentable square feet representing one lease is scheduled to expire in 2024 and approximately 100,795 rentable square feet representing two leases are scheduled to expire in 2025.

Stabilized Portfolio Information

As of September 30, 2024, our stabilized portfolio was comprised of 123 office, life science, and mixed-use properties encompassing an aggregate of approximately 17.1 million rentable square feet and 1,001 residential units. Our stabilized portfolio includes all of our properties with the exception of development properties currently committed for construction, under construction, and in the tenant improvement phase, redevelopment projects under construction, undeveloped land, and real estate assets held for sale. We define redevelopment properties as those properties for which we expect to spend significant development and construction costs pursuant to a formal plan to change its use, the intended result of which is a higher economic return on the property. We define properties in the tenant improvement phase as development or redevelopment properties where the project has reached “cold shell condition” and is ready for tenant improvements, which may require additional major base building construction before being placed in service. Projects in the tenant improvement phase are moved into our stabilized portfolio once the project reaches the earlier of 95% occupancy or one year from the date of the cessation of major base building construction activities. Costs capitalized to construction in progress for development and redevelopment properties are transferred to land and improvements, buildings and improvements, and deferred leasing costs on our consolidated balance sheets as the projects or phases of projects are placed in service.

We did not have any properties held for sale at September 30, 2024. Our stabilized portfolio also excludes our future development pipeline, which as of September 30, 2024 was comprised of eight potential development sites, representing approximately 64 gross acres of undeveloped land, on which we believe we have the potential to develop more than 6.0 million rentable square feet, depending upon economic conditions.

As of September 30, 2024, the following properties were excluded from our stabilized portfolio:


	Number of Properties/Projects	Estimated Rentable Square Feet (1)



In-process redevelopment projects - tenant improvement	2	100,000
In-process development projects - under construction	1	875,000

________________________

(1)Estimated rentable square feet upon completion.

The following table reconciles the changes in the rentable square feet in our stabilized office portfolio of operating properties from September 30, 2023 to September 30, 2024:


	Number of Buildings	Rentable Square Feet
Total as of September 30, 2023	120	16,285,153
Acquisitions	2	103,731
Completed development properties placed in-service	1	758,975


Remeasurement	—	(7,394)
Total as of September 30, 2024 (1)	123	17,140,465

________________________

(1)Includes four properties owned by consolidated property partnerships (see Note 1 “Organization, Ownership and Basis of Presentation” to our consolidated financial statements included in this report for additional information).

Occupancy Information

The following table sets forth certain information regarding our stabilized portfolio:


Region	Number of Buildings	Rentable Square Feet	Occupancy at (1)
			9/30/2024		6/30/2024		3/31/2024
Los Angeles	53	4,338,046	76.7	%	73.9	%	76.5	%

San Diego	26	2,876,502	87.9	%	88.5	%	87.9	%
San Francisco Bay Area	33	6,170,595	91.1	%	90.1	%	89.9	%
Seattle	10	2,996,347	80.4	%	83.1	%	83.6	%
Austin	1	758,975	74.2	%	72.3	%	71.5	%
Total Stabilized Portfolio	123	17,140,465	84.3	%	83.7	%	84.2	%


	Average Occupancy
	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
Stabilized Portfolio (1)	84.1	%	86.1	%	84.1	%	87.8	%
Same Store Portfolio (2)	84.6	%	86.1	%	84.7	%	87.8	%
Residential Portfolio (3)	92.0	%	92.7	%	92.6	%	92.9	%

________________________

(1)Occupancy percentages reported are based on our stabilized portfolio as of the end of the period presented and exclude occupancy percentages of properties held for sale. Represents economic occupancy.

(2)Occupancy percentages reported are based on properties owned and stabilized as of January 1, 2023 and still owned and stabilized as of September 30, 2024 and exclude our residential portfolio. See discussion under “Results of Operations” for additional information.

(3)Our residential portfolio consists of our 200-unit residential tower and 193-unit Jardine project in Hollywood, California and 608 residential units at our One Paseo mixed-use project in Del Mar, California.

Significant Tenants

The following table sets forth information about our 20 largest tenants based upon annualized base rental revenues, as defined below, as of September 30, 2024.


	Tenant Name (1)	Region	Annualized Base Rental Revenue (2) (3)		Rentable Square Feet (3)	Percentage of Total Annualized Base Rental Revenue (2)(3)		Percentage of Total Rentable Square Feet (3)		Year(s) of Significant Lease Expiration(s) (4)	Weighted Average Remaining Lease Term (Years)
			(in thousands)
1	Global technology company	Seattle / San Diego	$	44,851	849,826	5.6	%	5.0	%	2032 - 2033 / 2037	8.8
2	Cruise LLC	San Francisco Bay Area	35,449		374,618	4.4	%	2.2	%	2031	7.2
3	Stripe, Inc.	San Francisco Bay Area	33,110		425,687	4.2	%	2.5	%	2034	9.8
4	LinkedIn Corporation / Microsoft Corporation (5)	San Francisco Bay Area	29,752		663,460	3.7	%	3.9	%	2024 / 2026	1.7
5	Adobe Systems, Inc.	San Francisco Bay Area / Seattle	27,897		522,879	3.5	%	3.1	%	2027 / 2031	6.6
6	Salesforce, Inc.	San Francisco Bay Area / Seattle	24,706		472,988	3.1	%	2.8	%	2029 - 2030 / 2032	5.6
7	Okta, Inc.	San Francisco Bay Area	24,206		293,001	3.0	%	1.7	%	2028	4.1
8	DoorDash, Inc.	San Francisco Bay Area	23,842		236,759	3.0	%	1.4	%	2032	7.3
9	Netflix, Inc.	Los Angeles	21,854		361,388	2.7	%	2.1	%	2032	7.8
10	Cytokinetics, Inc.	San Francisco Bay Area	18,167		234,892	2.3	%	1.4	%	2033	9.1
11	Box, Inc.	San Francisco Bay Area	16,853		287,680	2.1	%	1.7	%	2028	3.8
12	Neurocrine Biosciences, Inc.	San Diego	16,365		299,064	2.1	%	1.7	%	2025 / 2029 / 2031	6.0
13	DIRECTV, LLC	Los Angeles	16,085		532,956	2.0	%	3.1	%	2026 - 2027	2.9
14	Synopsys, Inc.	San Francisco Bay Area	15,492		342,891	1.9	%	2.0	%	2030	5.9
15	Amazon.com	Seattle	13,926		340,705	1.7	%	2.0	%	2025 / 2030	4.7
16	Viacom International, Inc.	Los Angeles	13,718		220,330	1.7	%	1.3	%	2028	4.3
17	Riot Games, Inc. (6)	Los Angeles	13,571		203,722	1.7	%	1.2	%	2024 / 2026 / 2031	3.5
18	Indeed, Inc.	Austin	13,430		330,394	1.7	%	1.9	%	2034	10.3
19	Sony Interactive Entertainment, LLC	San Francisco Bay Area	13,059		127,760	1.6	%	0.7	%	2030	5.5
20	Tandem Diabetes Care, Inc.	San Diego	12,409		143,850	1.6	%	0.8	%	2035	10.6
	Total		$	428,742	7,264,850	53.6	%	42.5	%		6.2

________________________

(1)Includes subsidiaries of the tenant listed.

(2)Annualized base rental revenue includes the impact of straight-lining rent escalations and the amortization of free rent periods and excludes the impact of the following: amortization of deferred revenue related to tenant-funded tenant improvements, amortization of above/below market rents, amortization for lease incentives due under existing leases and expense reimbursement revenue. Excludes month-to-month leases and vacant space as of September 30, 2024.

(3)Includes 100% of consolidated property partnerships.

(4)We define significant lease expirations as those with space expiring greater than 25,000 rentable square feet.

(5)The 2024 lease expiration represents 76,031 rentable square feet expiring on October 31, 2024.

(6)The 2024 lease expiration represents 40,236 rentable square feet expiring on November 30, 2024.

Results of Operations

Net Operating Income

Management internally evaluates the operating performance and financial results of our stabilized portfolio based on Net Operating Income. We define “Net Operating Income” as consolidated operating revenues (rental income and other property income) less consolidated operating expenses (property expenses, real estate taxes and ground leases).

Net Operating Income is considered by management to be an important and appropriate supplemental performance measure to net income because we believe it helps both investors and management to understand the core operations of our properties excluding corporate and financing-related costs and non-cash depreciation and amortization. Net Operating Income is an unlevered operating performance metric of our properties and allows for a useful comparison of the operating performance of individual assets or groups of assets. This measure thereby provides an operating perspective not immediately apparent from net income. In addition, Net Operating Income is considered by many in the real estate industry to be a useful starting point for determining the value of a real estate asset or group of assets. Other real estate companies may use different methodologies for calculating Net Operating Income, and accordingly, our presentation of Net Operating Income may not be comparable to other real estate companies. Because of the exclusion of the items shown in the reconciliation below, Net Operating Income should only be used as a supplemental measure of our financial performance and not as an alternative to GAAP income from operations or net income.

Management further evaluates Net Operating Income by evaluating the performance from the following property groups:

•Same Store Properties – includes the consolidated results of all of the office properties that were owned and included in our stabilized portfolio for two comparable reporting periods, i.e., owned and included in our stabilized portfolio as of January 1, 2023 and still owned and included in the stabilized portfolio as of September 30, 2024, including our three residential properties in Hollywood and Del Mar, California;

•Development Properties – includes the results generated by certain of our in-process development and redevelopment projects, expenses for certain of our future development projects, and the results generated by the following stabilized development properties:

◦One office building that was added to the stabilized portfolio in the third quarter of 2023; and

◦One office building that was added to the stabilized portfolio in the fourth quarter of 2023;

•Acquisition Properties – includes the results, from the date of acquisition through the periods presented, for the one property acquired in the third quarter of 2024.

The following table sets forth certain information regarding the property groups within our stabilized office portfolio as of September 30, 2024:


Group	# of Buildings	Rentable Square Feet
Same Store Properties	119	16,207,143
Stabilized Development and Redevelopment Properties (1)	2	829,591
Acquisition Properties	2	103,731
Total Stabilized Portfolio	123	17,140,465

________________________

(1)Excludes development and redevelopment projects in the tenant improvement phase, our in-process development and redevelopment projects, and future development projects.

Comparison of the Three Months Ended September 30, 2024 to the Three Months Ended September 30, 2023

The following table summarizes our Net Operating Income, as defined, for our total portfolio for the three months ended September 30, 2024 and 2023.


	Three Months Ended September 30,				Dollar Change		Percentage Change
	2024		2023
	($ in thousands)
Reconciliation of Net Income Available to Common Stockholders to Net Operating Income, as defined:
Net Income Available to Common Stockholders	$	52,378	$	52,762	$	(384)	(0.7)	%



Net income attributable to noncontrolling common units of the Operating Partnership	509		515		(6)		(1.2)	%
Net income attributable to noncontrolling interests in consolidated property partnerships	4,786		5,460		(674)		(12.3)	%
Net income	$	57,673	$	58,737	$	(1,064)	(1.8)	%
Unallocated expense (income):
General and administrative expenses	18,066		24,761		(6,695)		(27.0)	%
Leasing costs	2,353		1,852		501		27.1	%
Depreciation and amortization	91,879		85,224		6,655		7.8	%
Interest income	(9,688)		(7,015)		(2,673)		38.1	%
Interest expense	36,408		29,837		6,571		22.0	%



Net Operating Income, as defined	$	196,691	$	193,396	$	3,295	1.7	%

The following tables summarize our Net Operating Income, as defined, for our total portfolio for the three months ended September 30, 2024 and 2023.


	Three Months Ended September 30,
	2024						2023
	Same Store		Development		Acquisition		Total		Same Store		Development		Acquisition		Total
	(in thousands)
Operating revenues:
Rental income	$	273,804	$	12,083	$	64	$	285,951	$	269,327	$	11,354	$	—	$	280,681

Other property income	3,532		455		—		3,987		2,720		193		—		2,913
Total	277,336		12,538		64		289,938		272,047		11,547		—		283,594
Property and related expenses:
Property expenses	61,170		2,413		10		63,593		57,503		1,942		—		59,445
Real estate taxes	25,586		1,091		—		26,677		26,794		1,569		—		28,363

Ground leases	2,016		961		—		2,977		1,895		495		—		2,390
Total	88,772		4,465		10		93,247		86,192		4,006		—		90,198
Net Operating Income, as defined	$	188,564	$	8,073	$	54	$	196,691	$	185,855	$	7,541	$	—	$	193,396


	Three Months Ended September 30, 2024 as compared to the Three Months Ended September 30, 2023
	Same Store				Development				Acquisition				Total
	Dollar Change		Percent Change		Dollar Change		Percent Change		Dollar Change		Percent Change			Dollar Change		Percent Change
	($ in thousands)
Operating revenues:
Rental income	$	4,477	1.7	%	$	729	6.4	%	$	64	100.0	%		$	5,270	1.9	%

Other property income	812		29.9	%	262		135.8	%	—		—	%		1,074		36.9	%
Total	5,289		1.9	%	991		8.6	%	64		100.0	%		6,344		2.2	%
Property and related expenses:
Property expenses	3,667		6.4	%	471		24.3	%	10		100.0	%		4,148		7.0	%
Real estate taxes	(1,208)		(4.5)	%	(478)		(30.5)	%	—		—	%		(1,686)		(5.9)	%

Ground leases	121		6.4	%	466		94.1	%	—		—	%		587		24.6	%
Total	2,580		3.0	%	459		11.5	%	10		100.0	%		3,049		3.4	%
Net Operating Income, as defined	$	2,709	1.5	%	$	532	7.1	%	$	54	100.0	%		$	3,295	1.7	%

Net Operating Income increased $3.3 million, or 1.7%, for the three months ended September 30, 2024 as compared to the three months ended September 30, 2023, primarily resulting from:

•An increase in Net Operating Income of $2.7 million, or 1.5%, attributable to the Same Store Properties, which was driven by the following activity:

•An increase in total operating revenues of $5.3 million, or 1.9%, primarily due to:

•$4.6 million net increase in non-recurring revenue items primarily related to bankruptcy and tenant restoration income of $4.9 million in 2024 and higher revenue from certain tenants on cash basis of revenue recognition of $0.9 million in 2024, partially offset by tenant restoration income $1.2 million in 2023; and

•$3.4 million increase due to higher recoverable operating expenses of $2.9 million in 2024, of which $1.3 million is attributable to an approximately 455,000 square foot building in the San Francisco Bay area that was previously tenant-managed becoming landlord-managed, and an increase of $0.5 million in parking income in 2024; partially offset by

•$2.7 million decrease in operating revenues from net lease expirations; and

•A net increase in property and related expenses of $2.6 million, or 3.0%, primarily due to utilities, security expenses, contract services, and repairs and maintenance of $3.8 million due to cost increases, which includes $1.2 million related to the aforementioned building that was previously tenant-managed becoming landlord-managed, partially offset by $1.2 million of property tax refunds; and

•An increase in Net Operating Income of $0.5 million, or 7.1%, attributable to the Development Properties.

Other Expenses and Income

General and Administrative Expenses

General and administrative expenses decreased $6.7 million, or 27.0%, for the three months ended September 30, 2024 as compared to the three months ended September 30, 2023, primarily due to a decrease in share-based compensation expense.

Leasing Costs

Leasing costs increased $0.5 million, or 27.1%, for the three months ended September 30, 2024 as compared to the three months ended September 30, 2023, primarily due to an increase in leasing overhead during the three months ended September 30, 2024.

Depreciation and Amortization

Depreciation and amortization increased $6.7 million, or 7.8%, for the three months ended September 30, 2024 as compared to the three months ended September 30, 2023, primarily due to the following:

•An increase of $4.4 million attributable to the Same Store Properties primarily due to an early lease termination in the third quarter of 2024; and

•An increase of $2.3 million attributable to the Development Properties.

Interest Expense

The following table sets forth our gross interest expense, including debt discounts and deferred financing cost amortization and capitalized interest, including capitalized debt discounts and deferred financing cost amortization, for the three months ended September 30, 2024 and 2023:


	Three Months Ended September 30,
	2024		2023		Dollar Change		Percentage Change
	(in thousands)
Gross interest expense	$	57,235	$	49,893	$	7,342	14.7	%
Capitalized interest and deferred financing costs	(20,827)		(20,056)		(771)		3.8	%
Interest expense	$	36,408	$	29,837	$	6,571	22.0	%

Gross interest expense, before the effect of capitalized interest and deferred financing costs, increased $7.3 million, or 14.7%, for the three months ended September 30, 2024 as compared to the three months ended September 30, 2023, due to an increase in the average outstanding debt balance and an increase in the weighted average interest rate for the three months ended September 30, 2024.

Capitalized interest and deferred financing costs increased $0.8 million, or 3.8%, for the three months ended September 30, 2024 as compared to the three months ended September 30, 2023, primarily due to an increase in the weighted average interest and loan fee amortization rate during the three months ended September 30, 2024. In the event of an extended cessation of development or redevelopment activities to get any of these projects ready for its intended use, such projects could potentially no longer qualify for capitalization of interest or other carrying costs, resulting in higher amounts being expensed.

Net Income Attributable to Noncontrolling Interests in Consolidated Property Partnerships

Net income attributable to noncontrolling interests in consolidated property partnerships decreased $0.7 million, or 12.3%, for the three months ended September 30, 2024 as compared to the three months ended September 30, 2023, primarily due to lower rental income driven by a temporary decrease in occupancy during the third quarter of 2024 at one property held in a consolidated property partnership and a lease expiration payment received during the third quarter of 2023 at another property held in a consolidated property partnership. The amounts reported for the three months ended September 30, 2024 and 2023 are comprised of the noncontrolling interest’s share of net income for 100 First Street Member, LLC and 303 Second Street Member, LLC and the noncontrolling interest’s share of net income for Redwood City Partners, LLC. See Note 1 “Organization, Ownership and Basis of Presentation” to our consolidated financial statements included in this report for additional information.

Comparison of the Nine Months Ended September 30, 2024 to the Nine Months Ended September 30, 2023

The following table summarizes our Net Operating Income, as defined, for our total portfolio for the nine months ended September 30, 2024 and 2023.


	Nine Months Ended September 30,				Dollar Change		Percentage Change
	2024		2023
	($ in thousands)
Reconciliation of Net Income Available to Common Stockholders to Net Operating Income, as defined:
Net Income Available to Common Stockholders	$	151,509	$	164,957	$	(13,448)	(8.2)	%



Net income attributable to noncontrolling common units of the Operating Partnership	1,469		1,612		(143)		(8.9)	%
Net income attributable to noncontrolling interests in consolidated property partnerships	14,942		18,673		(3,731)		(20.0)	%
Net income	$	167,920	$	185,242	$	(17,322)	(9.4)	%
Unallocated expense (income):
General and administrative expenses	54,596		71,356		(16,760)		(23.5)	%
Leasing costs	6,751		4,550		2,201		48.4	%

Depreciation and amortization	267,061		269,262		(2,201)		(0.8)	%
Interest income	(32,962)		(11,896)		(21,066)		177.1	%
Interest expense	112,042		81,891		30,151		36.8	%



Net Operating Income, as defined	$	575,408	$	600,405	$	(24,997)	(4.2)	%

The following tables summarize our Net Operating Income, as defined, for our total portfolio for the nine months ended September 30, 2024 and 2023.


	Nine Months Ended September 30,
	2024						2023
	Same Store		Development		Acquisition		Total		Same Store		Development		Acquisition		Total
	(in thousands)
Operating revenues:
Rental income	$	798,184	$	38,512	$	64	$	836,760	$	819,586	$	32,508	$	—	$	852,094

Other property income	10,862		1,628		—		12,490		7,833		751		—		8,584
Total	809,046		40,140		64		849,250		827,419		33,259		—		860,678
Property and related expenses:
Property expenses	173,509		6,673		10		180,192		163,233		5,000		—		168,233
Real estate taxes	77,324		7,601		—		84,925		79,275		5,593		—		84,868

Ground leases	5,996		2,729		—		8,725		5,673		1,499		—		7,172
Total	256,829		17,003		10		273,842		248,181		12,092		—		260,273
Net Operating Income, as defined	$	552,217	$	23,137	$	54	$	575,408	$	579,238	$	21,167	$	—	$	600,405


	Nine Months Ended September 30, 2024 as compared to the Nine Months Ended September 30, 2023
	Same Store				Development				Acquisition				Total
	Dollar Change		Percent Change		Dollar Change		Percent Change		Dollar Change		Percent Change			Dollar Change		Percent Change
	($ in thousands)
Operating revenues:
Rental income	$	(21,402)	(2.6)	%	$	6,004	18.5	%	$	64	100.0	%		$	(15,334)	(1.8)	%

Other property income	3,029		38.7	%	877		116.8	%	—		—	%		3,906		45.5	%
Total	(18,373)		(2.2)	%	6,881		20.7	%	64		100.0	%		(11,428)		(1.3)	%
Property and related expenses:
Property expenses	10,276		6.3	%	1,673		33.5	%	10		100.0	%		11,959		7.1	%
Real estate taxes	(1,951)		(2.5)	%	2,008		35.9	%	—		—	%		57		0.1	%

Ground leases	323		5.7	%	1,230		82.1	%	—		—	%		1,553		21.7	%
Total	8,648		3.5	%	4,911		40.6	%	10		100.0	%		13,569		5.2	%
Net Operating Income, as defined	$	(27,021)	(4.7)	%	$	1,970	9.3	%	$	54	100.0	%		$	(24,997)	(4.2)	%

Net Operating Income decreased $25.0 million, or 4.2%, for the nine months ended September 30, 2024 as compared to the nine months ended September 30, 2023, primarily resulting from:

•A decrease in Net Operating Income of $27.0 million, or 4.7%, attributable to the Same Store Properties, which was driven by the following activity:

•A decrease in total operating revenues of $18.4 million, or 2.2%, primarily due to:

•$9.9 million increase due to higher recoverable operating expenses of $6.9 million in 2024, of which $4.9 million is attributable to an approximately 455,000 square foot building in the San Francisco Bay area that was previously tenant-managed becoming landlord-managed, and an increase of $3.0 million in parking income in 2024; and

•$6.3 million increase from new and renewal leasing; offset by

•$24.1 million decrease from lease expirations net of lease termination income; and

•$10.5 million net decrease in non-recurring revenue items primarily related to a net $5.9 million of revenue adjustments for tenant credit worthiness considerations and lower revenue from certain tenants on a cash basis of revenue recognition in 2024, and $11.2 million of 2023 tenant restoration income, partially offset by $6.6 million of 2024 bankruptcy and tenant restoration income; partially offset by

•A net increase in property and related expenses of $8.6 million, or 3.5%, primarily due to higher insurance, janitorial, contract services, and security expenses of $10.6 million due to cost increases, which includes $4.6 million related to the aforementioned building that was previously tenant-managed becoming landlord-managed, partially offset by $2.0 million of property tax refunds; and

•An increase in Net Operating Income of $2.0 million, or 9.3%, attributable to the Development Properties.

Other Expenses and Income

General and Administrative Expenses

General and administrative expenses decreased $16.8 million, or 23.5%, for the nine months ended September 30, 2024 as compared to the nine months ended September 30, 2023, primarily due to a decrease in share-based compensation expense.

Leasing Costs

Leasing costs increased $2.2 million, or 48.4%, for the nine months ended September 30, 2024 as compared to the nine months ended September 30, 2023, primarily due to an increase in leasing overhead during the nine months ended September 30, 2024.

Depreciation and Amortization

Depreciation and amortization decreased $2.2 million, or 0.8%, for the nine months ended September 30, 2024 as compared to the nine months ended September 30, 2023, primarily due to the following:

•A decrease of $7.0 million attributable to the Same Store Properties primarily due to an in-place lease intangible asset becoming fully amortized in the second quarter of 2023; partially offset by

•An increase of $4.8 million attributable to the Development Properties.

Interest Expense

The following table sets forth our gross interest expense, including debt discounts and deferred financing cost amortization, and capitalized interest, including capitalized debt discounts and deferred financing cost amortization for the nine months ended September 30, 2024 and 2023:


	Nine Months Ended September 30,
	2024		2023		Dollar Change		Percentage Change
	(in thousands)
Gross interest expense	$	173,191	$	139,148	$	34,043	24.5	%
Capitalized interest and deferred financing costs	(61,149)		(57,257)		(3,892)		6.8	%
Interest expense	$	112,042	$	81,891	$	30,151	36.8	%

Gross interest expense, before the effect of capitalized interest and deferred financing costs, increased $34.0 million, or 24.5%, for the nine months ended September 30, 2024 as compared to the nine months ended September 30, 2023, due to an increase in the average outstanding debt balance and an increase in the weighted average interest rate for the nine months ended September 30, 2024.

Capitalized interest and deferred financing costs increased $3.9 million, or 6.8%, as compared to the nine months ended September 30, 2023, primarily due to an increase in the weighted average interest and loan fee amortization rate during the nine months ended September 30, 2024. In the event of an extended cessation of development or redevelopment activities to get any of these projects ready for its intended use, such projects could potentially no longer qualify for capitalization of interest or other carrying costs, resulting in higher amounts being expensed.

Net Income Attributable to Noncontrolling Interests in Consolidated Property Partnerships

Net income attributable to noncontrolling interests in consolidated property partnerships decreased $3.7 million or 20.0%, for the nine months ended September 30, 2024 as compared to the nine months ended September 30, 2023, primarily due to lower rental income due to decreased occupancy at one property held in a consolidated property partnership and lower rental income due a temporary decrease in occupancy during the third quarter of 2024 at another property held in a consolidated property partnership. The amounts reported for the nine months ended September 30, 2024 and 2023 are comprised of the noncontrolling interest’s share of net income for 100 First Street Member, LLC and 303 Second Street Member, LLC and the noncontrolling interest’s share of net income for Redwood City Partners, LLC. See Note 1 “Organization, Ownership and Basis of Presentation” to our consolidated financial statements included in this report for additional information.

Liquidity and Capital Resources of the Company

In this “Liquidity and Capital Resources of the Company” section, the term the “Company” refers only to Kilroy Realty Corporation on an unconsolidated basis and excludes the Operating Partnership and all other subsidiaries.

The Company’s business is operated primarily through the Operating Partnership. Distributions from the Operating Partnership are the Company’s primary source of capital. The Company believes the Operating Partnership’s sources of working capital, specifically its cash flows from operations and borrowings available under its unsecured revolving credit facility and funds from its capital recycling program, including strategic ventures, are adequate for it to make its distribution payments to the Company and, in turn, for the Company to make its dividend payments to its common stockholders for the next twelve months. Cash flows from operating activities generated by the Operating Partnership for the nine months ended September 30, 2024 were sufficient to cover the Company’s payment of cash dividends to its stockholders. However, there can be no assurance that the Operating Partnership’s sources of capital will continue to be available at all or in amounts sufficient to meet its needs, including its ability to make distributions to the Company. The unavailability of capital could adversely affect the Operating Partnership’s ability to make distributions to the Company, which would in turn, adversely affect the Company’s ability to pay cash dividends to its stockholders.

The Company is a well-known seasoned issuer and the Company and the Operating Partnership have an effective shelf registration statement that provides for the public offering and sale from time to time by the Company of its preferred stock, common stock, depositary shares, warrants, and guarantees of debt securities and by the Operating Partnership of its debt securities, in each case in unlimited amounts. The Company evaluates the capital markets on an ongoing basis for opportunities to raise capital, and, as circumstances warrant, the Company and the Operating Partnership may issue securities of all of these types in one or more offerings at any time and from time to time on an opportunistic basis, depending upon, among other things, market conditions, available pricing, and capital needs. When the Company receives proceeds from the sales of its preferred or common stock, it generally contributes the net proceeds from those sales to the Operating Partnership in exchange for corresponding preferred or common partnership units of the Operating Partnership. The Operating Partnership may use these proceeds and proceeds from the sale of its debt securities to repay debt, including borrowings under its unsecured revolving credit facility and unsecured term loan facility, to develop new or redevelop existing properties, to make acquisitions of properties or portfolios of properties, or for general corporate purposes.

As the sole general partner with control of the Operating Partnership, the Company consolidates the Operating Partnership for financial reporting purposes, and the Company does not have significant assets other than its investment in the Operating Partnership. Therefore, the assets and liabilities and the revenues and expenses of the Company and the Operating Partnership are substantially the same on their respective financial statements. The section entitled “Liquidity and Capital Resources of the Operating Partnership” should be read in conjunction with this section to understand the liquidity and capital resources of the Company on a consolidated basis and how the Company is operated as a whole.

Liquidity Highlights

As of September 30, 2024, we had approximately $625.4 million in cash and cash equivalents and $1.1 billion available under our unsecured revolving credit facility. In January 2024, the Operating Partnership issued $400.0 million aggregate principal amount of unsecured senior notes in a registered public offering at an interest rate of 6.250%. In March 2024, the Operating Partnership amended and restated the terms of its unsecured revolving credit facility to maintain the existing $1.1 billion borrowing capacity and extend the maturity date to July 31, 2028, repaid $200.0 million on its existing $520.0 million unsecured term loan facility (the “2022 Term Loan Facility”), and extended the maturity date on an aggregate principal amount of $200.0 million of the remaining $320.0 million by 12 months to October 3, 2025. In September 2024, the Operating Partnership repaid the $120.0 million outstanding on the 2022 Term Loan Facility. Our next debt maturity of $403.7 million occurs in December 2024. We believe that our available liquidity demonstrates a strong balance sheet and makes us well positioned to navigate any additional future uncertainties. In addition, the Company is a well-known seasoned issuer and has historically been able to raise capital on a timely basis in the public markets, as well as the private markets. Any future financings, however, will depend on market conditions for both capital raises and the investment of such proceeds, and there can be no assurances that we will successfully obtain such financings.

Distribution Requirements

The Company is required to distribute 90% of its taxable income (subject to certain adjustments and excluding net capital gains) on an annual basis to maintain qualification as a REIT for federal income tax purposes and is required to pay income tax at regular corporate rates to the extent it distributes less than 100% of its taxable income (including capital gains). As a result of these distribution requirements, the Operating Partnership cannot rely on retained earnings to fund its on-going operations to the same extent as other companies whose parent companies are not REITs. In addition, the Company may be required to use borrowings under the Operating Partnership’s revolving credit facility, if necessary, to meet REIT distribution requirements and maintain its REIT status. The Company may also need to raise capital to fund the Operating Partnership’s working capital needs, as well as potential developments of new or existing properties or acquisitions.

The Company intends to continue to make, but has not committed to make, regular quarterly cash distributions to common stockholders, and through the Operating Partnership, to common unitholders from the Operating Partnership’s cash flows from operating activities. All such distributions are at the discretion of the Board of Directors. As the Company intends to maintain distributions at a level sufficient to meet the REIT distribution requirements and minimize its obligation to pay income and excise taxes, it will continue to evaluate whether the current levels of distribution are appropriate to do so throughout 2024. In addition, in the event the Company completes additional dispositions in the future and is unable to successfully complete Section 1031 Exchanges to defer some or all of the taxable gains related to property dispositions (or in the event additional legislation is enacted that further modifies or repeals laws with respect to Section 1031 Exchanges), the Company may be required to distribute a special dividend to its common stockholders and common unitholders in order to minimize or eliminate income taxes on such gains. The Company considers market factors and its performance in addition to REIT requirements in determining its distribution levels. Amounts accumulated for distribution to stockholders are invested primarily in interest-bearing accounts and short-term interest-bearing securities, which is consistent with the Company’s intention to maintain its qualification as a REIT. Such investments may include, for example, obligations of the Government National Mortgage Association, other governmental agency securities, certificates of deposit and interest-bearing bank deposits.

On September 16, 2024, the Board of Directors declared a regular quarterly cash dividend of $0.54 per share of common stock. The regular quarterly cash dividend is payable to stockholders of record on September 30, 2024 and a corresponding cash distribution of $0.54 per Operating Partnership unit is payable to holders of the Operating Partnership’s common limited partnership interests of record on September 30, 2024, including those owned by the Company. The total cash quarterly dividends and distributions paid on October 9, 2024 were $64.4 million.

Debt Covenants

The covenants contained within certain of our unsecured debt obligations generally prohibit the Company from paying dividends during an event of default in excess of an amount which results in distributions to us in an amount sufficient to permit us to pay dividends to our stockholders that we reasonably believe are necessary to (a) maintain our qualification as a REIT for federal and state income tax purposes and (b) avoid the payment of federal or state income or excise tax.

Capitalization

As of September 30, 2024, our total debt as a percentage of total market capitalization was 52.2%, which was calculated based on the closing price per share of the Company’s common stock of $38.70 on September 30, 2024 as shown in the following table:


	Shares/Units at September 30, 2024	Aggregate Principal Amount or $ Value Equivalent		% of Total Market Capitalization
	($ in thousands)
Debt: (1)(2)


Unsecured Term Loan Facility due 2025 (3)		200,000		2.1	%
Unsecured Senior Notes due 2024		403,712		4.2	%
Unsecured Senior Notes due 2025		400,000		4.1	%
Unsecured Senior Notes Series A & B due 2026		250,000		2.6	%
Unsecured Senior Notes due 2028 (4)		400,000		4.1	%
Unsecured Senior Notes due 2029		400,000		4.1	%
Unsecured Senior Notes Series A & B due 2027 & 2029		250,000		2.6	%
Unsecured Senior Notes due 2030		500,000		5.2	%
Unsecured Senior Notes due 2031		350,000		3.6	%
Unsecured Senior Notes due 2032 (4)		425,000		4.5	%
Unsecured Senior Notes due 2033 (4)		450,000		4.7	%
Unsecured Senior Notes due 2036		400,000		4.1	%
Secured debt		608,211		6.3	%
Total debt		$	5,036,923	52.2	%
Equity and Noncontrolling Interests in the Operating Partnership: (5)
Common limited partnership units outstanding (6)	1,150,574	$	44,527	0.5	%
Shares of common stock outstanding	118,046,674	4,568,406		47.3	%
Total Equity and Noncontrolling Interests in the Operating Partnership		$	4,612,933	47.8	%
Total Market Capitalization		$	9,649,856	100.0	%

________________________

(1) Represents gross aggregate principal amount due at maturity before the effect of the following at September 30, 2024: $27.0 million of unamortized deferred financing costs on the unsecured term loan facility, unsecured senior notes and secured debt and $8.8 million of unamortized discounts for the unsecured senior notes.

(2) As of September 30, 2024, there was no outstanding balance on the unsecured revolving credit facility.

(3) The maturity date may be extended by two 12-month periods, at the Operating Partnership’s option.

(4) Green bond.

(5) Value based on closing price per share of our common stock of $38.70 as of September 30, 2024.

(6) Includes common units of the Operating Partnership not owned by the Company; does not include noncontrolling interests in consolidated property partnerships.

Liquidity and Capital Resources of the Operating Partnership

In this “Liquidity and Capital Resources of the Operating Partnership” section, the terms “we,” “our,” and “us” refer to the Operating Partnership or the Operating Partnership and the Company together, as the context requires.

General

Our primary liquidity sources and uses are as follows:

Liquidity Sources

•Net cash flows from operations;

•Borrowings under the Operating Partnership’s unsecured revolving credit facility;

•Proceeds from our capital recycling program, including the disposition of assets and the formation of strategic ventures;

•Proceeds from additional secured or unsecured debt financings; and

•Proceeds from public or private issuance of debt, equity or preferred equity securities.

Liquidity Uses

•Property operating and corporate expenses;

•Capital expenditures and tenant improvement and leasing costs;

•Development and redevelopment costs;

•Operating property or undeveloped land acquisitions;

•Debt service and principal payments, including debt maturities;

•Distributions to common security holders;

•Repurchases and redemptions of outstanding common stock of the Company; and

•Outstanding debt repurchases, redemptions and repayments.

General Strategy

Our general strategy is to maintain a conservative balance sheet with a strong credit profile and to maintain a capital structure that allows for financial flexibility and diversification of capital resources. We manage our capital structure to reflect a long-term investment approach and utilize multiple sources of capital to meet our long-term capital requirements. We believe that our current projected liquidity requirements for the next twelve-month period, as set forth above under the caption “—Liquidity Uses,” will be satisfied using a combination of the liquidity sources listed above, although there can be no assurance in this regard. We believe our conservative leverage and staggered debt maturities provide us with financial flexibility and enhance our ability to obtain additional sources of liquidity if necessary, and, therefore, we are well-positioned to refinance or repay maturing debt and to pursue our strategy of seeking attractive acquisition opportunities, which we may finance, as necessary, with future public and private issuances of debt and equity securities, although there can be no assurance in this regard.

Liquidity Sources

Unsecured Revolving Credit Facility and Term Loan Facilities

The following table summarizes the balance and terms of our unsecured revolving credit facility as of September 30, 2024 and December 31, 2023:


	Unsecured Revolving Credit Facility
	September 30, 2024			December 31, 2023
	(in thousands)
Outstanding borrowings	$	—		$	—
Remaining borrowing capacity (1)	1,100,000			1,100,000
Total borrowing capacity (1)	$	1,100,000		$	1,100,000
Interest rate (2)	5.96		%	6.38		%
Facility fee-annual rate (3)	0.200%
Maturity date (4)	July 31, 2028			July 31, 2025

________________________

(4)The maturity date may be extended by two six-month periods, at the Operating Partnership’s election.


	2024 Term Loan Facility
	September 30, 2024
	(in thousands)
Outstanding borrowings	$	200,000
Remaining borrowing capacity	—
Total borrowing capacity (1)	$	200,000
Interest rate (2)	6.16		%

Maturity date (3)	October 3, 2025

____________________

(3)The maturity date may be extended by two 12-month periods, at the Operating Partnership’s election.

In September 2024, the Operating Partnership repaid the $120.0 million outstanding on its 2022 Term Loan Facility. The following table summarizes the balance and terms of our 2022 Term Loan Facility as of December 31, 2023:


	2022 Term Loan Facility
	December 31, 2023
	(in thousands)
Outstanding borrowings	$	520,000
Remaining borrowing capacity	—
Total borrowing capacity	$	520,000
Interest rate (1)	6.41		%
Undrawn facility fee-annual rate (2)	0.200%
Maturity date	October 3, 2024

____________________

(1)Our 2022 Term Loan Facility interest rate was calculated using Adjusted SOFR plus a margin of 0.950% based on our credit rating as of December 31, 2023.

Capital Recycling Program

As discussed in the section “Factors That May Influence Future Results of Operations - Capital Recycling Program,” we continuously evaluate opportunities for the potential disposition of non-core properties in our portfolio or the formation of strategic ventures with the intent of using the proceeds generated to acquire new operating and development properties, to finance development and redevelopment expenditures, to repay long-term debt, and for other general corporate purposes. As part of this strategy, we often attempt to enter into Section 1031 Exchanges, and other tax deferred transaction structures, when possible, to defer some or all of the taxable gains on the sales, if any, for federal and state income tax purposes.

The timing of any potential future disposition or strategic venture transactions will depend on market conditions and other factors, including but not limited to, our capital needs, the availability of financing for potential buyers (which has been and may continue to be constrained due to current economic and market conditions) and our ability to defer some or all of the taxable gains on the sales. We cannot assure you that we will dispose of any additional properties, enter into any additional strategic ventures, or that we will be able to identify and complete the acquisitions of suitable replacement properties to effect a Section 1031 Exchange or be able to use other tax deferred structures in connection with our strategy. In the event we are unable to complete dispositions as planned, we may raise capital through other sources of liquidity including our available unsecured revolving credit facility or the public or private issuance of unsecured debt.

Shelf Registration Statement

The Company is a well-known seasoned issuer and the Company and the Operating Partnership have an effective shelf registration statement that provides for the public offering and sale from time to time by the Company of its preferred stock, common stock, depository shares, and guarantees of debt securities and by the Operating Partnership of its debt securities, in each case in unlimited amounts. The Company evaluates the capital markets on an ongoing basis for opportunities to raise capital, and, as circumstances warrant, the Company and the Operating Partnership may issue securities of all of these types in one or more offerings at any time and from time to time on an opportunistic basis, depending upon, among other things, market conditions, available pricing, and capital needs. Capital raising could be more challenging under current market conditions as uncertainty related to interest rates, inflation rates, economic outlook, geopolitical events, and other factors have contributed and may continue to contribute to significant volatility and negative pressures in financial markets. When the Company receives proceeds from the sales of its preferred or common stock, it generally contributes the net proceeds from those sales to the Operating Partnership in exchange for corresponding preferred or common partnership units of the Operating Partnership. The Operating Partnership may use these proceeds and proceeds from the sale of its debt securities to repay debt, including borrowings under its unsecured revolving credit facility and unsecured term loan facility, to develop new or redevelop existing properties, to make acquisitions of properties or portfolios of properties, or for general corporate purposes.

At-The-Market Stock Offering Program

Unsecured and Secured Debt

In January 2024, the Operating Partnership issued $400.0 million aggregate principal amount of unsecured senior notes in a registered public offering. The outstanding balance of the unsecured senior notes is included in unsecured debt, net of an initial issuance discount of $4.5 million, on our consolidated balance sheets. The unsecured senior notes, which are scheduled to mature on January 15, 2036, require semi-annual interest payments each January and July based on a stated annual interest rate of 6.250%. The Operating Partnership may redeem the notes at any time, either in whole or in part, subject to the payment of an early redemption premium payable with respect to redemptions prior to October 15, 2035. On or after October 15, 2035, the Operating Partnership may redeem the notes at any time, either in whole or in part, at par.

The aggregate principal amount of the unsecured and secured debt of the Operating Partnership outstanding as of September 30, 2024 was as follows:


	Aggregate Principal Amount Outstanding
	(in thousands)


Unsecured Term Loan Facility due 2025 (1)	$	200,000
Unsecured Senior Notes due 2024	403,712
Unsecured Senior Notes due 2025	400,000
Unsecured Senior Notes Series A & B due 2026	250,000
Unsecured Senior Notes due 2028 (2)	400,000
Unsecured Senior Notes due 2029	400,000
Unsecured Senior Notes Series A & B due 2027 & 2029	250,000
Unsecured Senior Notes due 2030	500,000
Unsecured Senior Notes due 2031	350,000
Unsecured Senior Notes due 2032 (2)	425,000
Unsecured Senior Notes due 2033 (2)	450,000
Unsecured Senior Notes due 2036	400,000
Secured Debt	608,211
Total Unsecured and Secured Debt (3)	5,036,923
Less: Unamortized Net Discounts and Deferred Financing Costs (4)	(35,767)
Total Debt, Net	$	5,001,156

________________________

(1)The maturity date may be extended by two 12-month periods, at the Operating Partnership’s option.

(2)Green bond.

(3)As of September 30, 2024, there was no outstanding balance on the unsecured revolving credit facility.

(4)Includes $27.0 million of unamortized deferred financing costs on the unsecured term loan facility, unsecured senior notes and secured debt and $8.8 million of unamortized discounts for the unsecured senior notes. Excludes unamortized deferred financing costs on the unsecured revolving credit facility, which are included in prepaid expenses and other assets, net on our consolidated balance sheets.

Debt Composition

The composition of the Operating Partnership’s aggregate debt balances between secured and unsecured and fixed-rate and variable-rate debt as of September 30, 2024 and December 31, 2023 was as follows:


	Percentage of Total Debt (1) (2)				Weighted Average Interest Rate (1) (2)
	September 30, 2024		December 31, 2023		September 30, 2024		December 31, 2023
Secured vs. unsecured:
Unsecured	87.9	%	87.7	%	4.0	%	4.0	%
Secured	12.1	%	12.3	%	5.1	%	5.1	%
Variable-rate vs. fixed-rate:
Variable-rate	4.0	%	10.5	%	6.2	%	6.4	%
Fixed-rate (3)	96.0	%	89.5	%	4.0	%	3.8	%
Stated rate (3)					4.1	%	4.1	%
GAAP effective rate (4)					4.2	%	4.1	%
GAAP effective rate including debt issuance costs					4.4	%	4.3	%

________________________

(1) As of the end of the period presented.

(2) As of September 30, 2024 and December 31, 2023, there was no outstanding balance on the unsecured revolving credit facility.

(3) Excludes the impact of the amortization of any debt discounts/premiums and deferred financing costs.

(4) Includes the impact of amortization of any debt discounts/premiums, excluding deferred financing costs.

Liquidity Uses

Contractual Obligations

Refer to our 2023 Annual Report on Form 10-K for a discussion of our contractual obligations. There have been no material changes outside of the ordinary course of business to these contractual obligations during the nine months ended September 30, 2024 other than the debt activity discussed under “Liquidity Sources.”

Other Liquidity Uses

Development

We believe we may spend between $50.0 million to $75.0 million on development projects throughout the remainder of 2024. The ultimate timing of these expenditures may fluctuate given construction progress and leasing status of the projects, or as a result of events outside our control, such as delays or increased costs as a result of heightened inflation and market conditions. We expect that any material additional development activities will be funded with borrowings under the unsecured revolving credit facility, the public or private issuance of debt or equity securities, the disposition of assets under our capital recycling program, or strategic venture opportunities. We cannot provide assurance that development projects will be completed on the terms, for the amounts, or on the timelines currently contemplated, or at all.

Debt Maturities

We believe our conservative leverage, staggered debt maturities and our unsecured revolving credit facility provide us with financial flexibility and enhance our ability to obtain additional sources of liquidity if necessary, and, therefore, we believe we are well-positioned to refinance or repay maturing debt and to pursue our strategy of seeking attractive acquisition opportunities, which we may finance, as necessary, with future public and private issuances of debt and equity securities. However, we can provide no assurance that we will have access to the public or private debt or equity markets in the future on favorable terms or at all. In March 2024, the Operating Partnership amended and restated the terms of its unsecured revolving credit facility to maintain the existing $1.1 billion borrowing capacity and extend the maturity date to July 31, 2028, repaid $200.0 million on its existing $520.0 million unsecured term loan facility (the “2022 Term Loan Facility”) and extended the maturity date on an aggregate principal amount of $200.0 million of the remaining $320.0 million by 12 months to October 3, 2025. In September 2024, the Operating Partnership repaid the $120.0 million outstanding on the 2022 Term Loan Facility. Our next debt maturity of $403.7 million occurs in December 2024. We may, however, repurchase certain of our unsecured senior notes from time to time prior to maturity (depending on prevailing market conditions, our liquidity, contractual restrictions and other factors) through cash purchases, open-market purchases, privately negotiated transactions, tender offers or otherwise.

Potential Future Leasing Costs and Capital Improvements

The amounts we incur for tenant improvements and leasing costs depend on leasing activity in each period. Tenant improvements and leasing costs generally fluctuate in any given period depending on factors such as the type and condition of the property, the term of the lease, the type of the lease, the involvement of external leasing agents and overall market conditions, including the level of inflation. Capital expenditures may fluctuate in any given period subject to the nature, extent and timing of improvements required to maintain our properties and may be impacted by inflationary pressures on the cost of construction materials.

Share Repurchases

In February 2024, the Company's Board of Directors approved a new share repurchase program (the “Share Repurchase Program”) that authorizes the repurchase of shares of the Company’s common stock having an aggregate gross purchase price of up to $500.0 million. The Share Repurchase Program supersedes and replaces the Company’s existing share repurchase program. Under the Share Repurchase Program, repurchases may be made from time to time using a variety of methods, which may include open market purchases and privately negotiated transactions. The specific timing, price and size of purchases will depend on prevailing stock prices, general economic and market conditions and other considerations. The Share Repurchase Program does not have a termination date and repurchases may be discontinued at any time. We did not repurchase any common stock under the Share Repurchase Program during the nine months ended September 30, 2024.

Potential Future Acquisitions

As discussed in the section “—Factors That May Influence Future Results of Operations - Acquisitions,” we continue to evaluate strategic opportunities and remain a disciplined buyer of core, value-add and strategic operating properties, and land, dependent on market conditions and business cycles, among other factors. We focus on growth opportunities primarily in markets populated by knowledge and creative based tenants in a variety of industries, including technology, media, healthcare, life sciences, entertainment and professional services. We expect that any material acquisitions will be funded with borrowings under the unsecured revolving credit facility, the public or private issuance of debt or equity securities, the disposition of assets under our capital recycling program, the formation of strategic ventures or through the assumption of existing debt, although there can be no assurance in this regard.

We cannot provide assurance that we will enter into any agreements to acquire properties or undeveloped land, or that potential acquisitions contemplated by any agreements we may enter into in the future will be completed.

Factors That May Influence Future Sources of Capital and Liquidity of the Company and the Operating Partnership

We continue to evaluate sources of financing for our business activities, including borrowings under the unsecured revolving credit facility, the unsecured term loan facility, issuance of public and private equity securities, unsecured debt and fixed-rate secured mortgage financing, proceeds from the disposition of selective assets through our capital recycling program and the formation of strategic ventures. However, our ability to obtain new financing or refinance existing borrowings on favorable terms could be impacted by various factors, including the state of the macro economy, the state of the credit and equity markets, significant tenant defaults, a decline in the demand for office properties, a decrease in market rental rates or market values of real estate assets in our submarkets, the amount of our future borrowings and uncertainty related to interest rates, inflation rates, geopolitical events and other factors (refer to “Part I, Item IA. Risk Factors” in our annual report on Form 10-K for the year ended December 31, 2023 for additional information). These events could result in the following:

•Decreases in our cash flows from operations, which could create further dependence on the unsecured revolving credit facility;

•An increase in the proportion of variable-rate debt, which could increase our sensitivity to interest rate fluctuations in the future; and

•A decrease in the value of our properties, which could have an adverse effect on the Operating Partnership’s ability to incur additional debt, refinance existing debt at competitive rates, or comply with its existing debt obligations.

In addition to the factors noted above, the Operating Partnership’s credit ratings are subject to ongoing evaluation by credit rating agencies and may be changed or withdrawn by a rating agency in the future if, in its judgment, circumstances warrant. In the event that the Operating Partnership’s credit ratings are downgraded, we may incur higher borrowing costs and may experience difficulty in obtaining additional financing or refinancing existing indebtedness.

Debt Covenants

The unsecured revolving credit facility, unsecured term loan facility, unsecured senior notes, and certain other secured debt arrangements contain covenants and restrictions requiring us to meet certain financial ratios and reporting requirements. Key existing financial covenants and their covenant levels include:

Unsecured Credit and Term Loan Facilities and
Private Placement Notes (as defined in the applicable Credit Agreements):

Covenant Level

Actual Performance

as of September 30, 2024

Total debt to total asset value

less than 60%

33%

Fixed charge coverage ratio

greater than 1.5x

3.2x

Unsecured debt ratio

greater than 1.67x

3.08x

Unencumbered asset pool debt service coverage

greater than 1.75x

3.58x

Unsecured Senior Notes due 2024, 2025, 2028, 2029, 2030, 2032, 2033, and 2036
(as defined in the applicable Indentures):

Total debt to total asset value

less than 60%

37%

Interest coverage

greater than 1.5x

5.1x

Secured debt to total asset value

less than 40%

Unencumbered asset pool value to unsecured debt

greater than 150%

282%

The Operating Partnership was in compliance with all of its debt covenants as of September 30, 2024. Our current expectation is that the Operating Partnership will continue to meet the requirements of its debt covenants in both the short and long term. However, in the event of an economic slowdown or continued volatility in the credit markets, there is no certainty that the Operating Partnership will be able to continue to satisfy all the covenant requirements.

Consolidated Historical Cash Flows Summary

The following summary discussion of our consolidated historical cash flows is based on the consolidated statements of cash flows in Item 1. “Financial Statements” and is not meant to be an all-inclusive discussion of the changes in our cash flows for the periods presented below. Changes in our cash flows include changes in cash and cash equivalents and restricted cash. Our historical cash flows activity for the nine months ended September 30, 2024 as compared to the nine months ended September 30, 2023 is as follows:


	Nine Months Ended September 30,
	2024		2023		Dollar Change		Percentage Change
	($ in thousands)
Net cash provided by operating activities	$	432,912	$	492,366	$	(59,454)	(12.1)	%
Net cash used in investing activities	(133,548)		(660,477)		526,929		(79.8)	%
Net cash (used in) provided by financing activities	(184,132)		439,526		(623,658)		(141.9)	%
Net increase in cash and cash equivalents	$	115,232	$	271,415	$	(156,183)	(57.5)	%

Operating Activities

Our cash flows from operating activities depends on numerous factors including the occupancy level of our portfolio, the rental rates achieved on our leases, the collectability of rent and recoveries from our tenants, the level of operating expenses, the impact of property acquisitions, completed development projects and related financing activities, and other general and administrative costs. See additional information under the caption “—Results of Operations.” Our net cash provided by operating activities decreased by $59.5 million, or 12.1%, for the nine months ended September 30, 2024 as compared to the nine months ended September 30, 2023, primarily due to a decrease in the retirement liability associated with our former CEO, who departed the Company in early 2024, as well as increased property tax payments made during the nine months ended September 30, 2024.

Investing Activities

Our cash flows from investing activities are generally used to fund development and operating property acquisitions, expenditures for development and redevelopment projects and recurring and nonrecurring capital expenditures for our operating properties, net of proceeds received from dispositions of real estate assets. Our net cash used in investing activities decreased by $526.9 million, or 79.8%, for the nine months ended September 30, 2024 as compared to the nine months ended September 30, 2023, primarily due to the maturity of certificates of deposit during the nine months ended September 30, 2024.

Financing Activities

Our cash flows from financing activities are principally impacted by our capital raising activities, net of dividends and distributions paid to common stockholders and common unitholders. During the nine months ended September 30, 2024, we had net cash used in financing activities of $184.1 million as compared to net cash provided by financing activities of $439.5 million during the nine months ended September 30, 2023, primarily due to the $320 million repayment of the 2022 Term Loan Facility and a decrease in borrowings during the nine months ended September 30, 2024.

Critical Accounting Policies and Estimates

The preparation of financial statements in conformity with GAAP requires us to make estimates, assumptions, and judgments that affect the reported amounts of assets, liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses for the reporting periods. We base our estimates on historical experience, current market conditions, and various other assumptions that are believed to be reasonable under the circumstances. Actual results could materially differ from these estimates.

In our Annual Report on Form 10-K for the year ended December 31, 2023, we identified certain critical accounting policies that affect certain of our more significant estimates and assumptions used in preparing our consolidated financial statements. We have not made any material changes to our critical accounting policies and estimates during the period covered by this report.

Non-GAAP Supplemental Financial Measure: Funds From Operations (“FFO”)

We calculate Funds From Operations available to common stockholders and common unitholders (“FFO”) in accordance with the 2018 Restated White Paper on FFO approved by the Board of Governors of Nareit. The White Paper defines FFO as net income or loss (calculated in accordance with GAAP), excluding depreciation and amortization related to real estate, gains and losses from the sale of certain real estate assets, gains and losses from change in control, and impairment write-downs of certain real estate assets and investments in entities when the impairment is directly attributable to decreases in the value of depreciable real estate held by the entity. The reconciling items include amounts to adjust earnings from consolidated partially-owned entities and equity in earnings of unconsolidated affiliates to FFO. Our calculation of FFO includes the amortization of deferred revenue related to tenant-funded tenant improvements and excludes the depreciation of the related tenant improvement assets. We also add back net income attributable to noncontrolling common units of the Operating Partnership because we report FFO attributable to common stockholders and common unitholders.

We believe that FFO is a useful supplemental measure of our operating performance. The exclusion from FFO of gains and losses from the sale of operating real estate assets allows investors and analysts to readily identify the operating results of the assets that form the core of our activity and assists in comparing those operating results between periods. Also, because FFO is generally recognized as the industry standard for reporting the operations of REITs, it facilitates comparisons of operating performance to other REITs. However, other REITs may use different methodologies to calculate FFO, and accordingly, our FFO may not be comparable to all other REITs.

Implicit in historical cost accounting for real estate assets in accordance with GAAP is the assumption that the value of real estate assets diminishes predictably over time. Since real estate values have historically risen or fallen with market conditions, many industry investors and analysts have considered presentations of operating results for real estate companies using historical cost accounting alone to be insufficient. Because FFO excludes depreciation and amortization of real estate assets, we believe that FFO along with the required GAAP presentations provides a more complete measurement of our performance relative to our competitors and a more appropriate basis on which to make decisions involving operating, financing, and investing activities than the required GAAP presentations alone would provide.

However, FFO should not be viewed as an alternative measure of our operating performance because it does not reflect either depreciation and amortization costs or the level of capital expenditures and leasing costs necessary to maintain the operating performance of our properties, which are significant economic costs and could materially impact our results from operations.

The following table presents our FFO for the three and nine months ended September 30, 2024 and 2023:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
	(in thousands)
Net income available to common stockholders	$	52,378	$	52,762	$	151,509	$	164,957
Adjustments:
Net income attributable to noncontrolling common units of the Operating Partnership	509		515		1,469		1,612
Net income attributable to noncontrolling interests in consolidated property partnerships	4,786		5,460		14,942		18,673
Depreciation and amortization of real estate assets	90,243		83,518		262,292		263,662

Funds From Operations attributable to noncontrolling interests in consolidated property partnerships	(7,468)		(8,208)		(23,454)		(27,045)
Funds From Operations (1) (2)	$	140,448	$	134,047	$	406,758	$	421,859

________________________

(1) Reported amounts are attributable to common stockholders, common unitholders and restricted stock unitholders.

(2) FFO available to common stockholders and unitholders includes amortization of deferred revenue related to tenant-funded tenant improvements of $4.2 million and $4.9 million for the three months ended September 30, 2024 and 2023, respectively, and $15.1 million and $15.0 million for the nine months ended September 30, 2024 and 2023, respectively.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Information about our market risk is disclosed in “Part II, Item 7A, Quantitative and Qualitative Disclosures About Market Risk” of our Annual Report on Form 10-K for the fiscal year ended December 31, 2023 and is incorporated herein by reference. There have been no material changes for the nine months ended September 30, 2024, to the information provided in “Part II, Item 7A, Quantitative and Qualitative Disclosures About Market Risk” of our Annual Report on Form 10-K for the fiscal year ended December 31, 2023.

ITEM 4. CONTROLS AND PROCEDURES

Kilroy Realty Corporation

The Company maintains disclosure controls and procedures (as defined in Rule 13a-15(e) or Rule 15d-15(e) under the Exchange Act) that are designed to ensure that information required to be disclosed in the Company’s reports under the Exchange Act is processed, recorded, summarized, and reported within the time periods specified in the SEC’s rules and forms and that such information is accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer, as appropriate, to allow for timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

As required by SEC Rule 13a-15(b), the Company carried out an evaluation, under the supervision and with the participation of management, including the Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of the disclosure controls and procedures as of September 30, 2024, the end of the period covered by this report. Based on the foregoing, the Company’s Chief Executive Officer and Chief Financial Officer concluded, as of that time, the disclosure controls and procedures were effective at the reasonable assurance level.

There have been no changes that occurred during the period covered by this report in the Company’s internal control over financial reporting identified in connection with the evaluation referenced above that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Kilroy Realty, L.P.

The Operating Partnership maintains disclosure controls and procedures (as defined in Rule 13a-15(e) or Rule 15d-15(e) under the Exchange Act) that are designed to ensure that information required to be disclosed in the Operating Partnership’s reports under the Exchange Act is processed, recorded, summarized, and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to management, including the Chief Executive Officer and Chief Financial Officer of its general partner, as appropriate, to allow for timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

As required by SEC Rule 13a-15(b), the Operating Partnership carried out an evaluation, under the supervision and with the participation of management, including the Chief Executive Officer and Chief Financial Officer of its general partner, of the effectiveness of the design and operation of the disclosure controls and procedures as of September 30, 2024, the end of the period covered by this report. Based on the foregoing, the Chief Executive Officer and Chief Financial Officer of its general partner concluded, as of that time, the disclosure controls and procedures were effective at the reasonable assurance level.

There have been no changes that occurred during the period covered by this report in the Operating Partnership’s internal control over financial reporting identified in connection with the evaluation referenced above that have materially affected, or are reasonably likely to materially affect, the Operating Partnership’s internal control over financial reporting.

PART II – OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

We and our properties are subject to routine litigation incidental to our business. These matters are generally covered by insurance. As of September 30, 2024, we are not a defendant in, and our properties are not subject to, any legal proceedings that we believe, if determined adversely to us, would have a material adverse effect upon our financial condition, results of operations or cash flows.

ITEM 1A. RISK FACTORS

There have been no material changes to the risk factors included in the Company’s and the Operating Partnership’s annual report on Form 10-K for the year ended December 31, 2023.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

(a) Recent Sales of Unregistered Securities: None.

(b) Use of Proceeds from Registered Securities: None.

The table below reflects our purchases of common stock during each of the three months in the three-month period ended September 30, 2024.


Period	Total Number of Shares of Stock Purchased (1) (2)	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Maximum Number (or Approximate Dollar Value) that May Yet be Purchased Under the Plans or Programs
July 1, 2024 - July 31, 2024	587,099	$	36.95	—	—
August 1, 2024 - August 31, 2024	694	34.49		—	—
September 1, 2024 - September 30, 2024	—	—		—	—
Total	587,793	$	36.95	—	—

________________________

(1)Represents shares of common stock remitted to the Company to satisfy tax withholding obligations in connection with the distribution of, or the vesting and distribution of, restricted stock units or restricted stock in shares of common stock. The value of such shares of common stock remitted to the Company was based on the closing price of the Company’s common stock on the applicable withholding date.

(2)During the three months ended September 30, 2024, 578,341 shares of common stock were remitted to the Company to satisfy tax withholding obligations in connection with our former CEO's distribution of restricted stock units associated with his retirement.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

None.

ITEM 5. OTHER INFORMATION

(a).None

(b).None

(c).During the three months ended September 30, 2024, no director or officer of the Company adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each such term is defined in Item 408(a) of Regulation S-K.

ITEM 6. EXHIBITS


Exhibit Number						Description

3.(i)1						Articles of Amendment and Restatement of Kilroy Realty Corporation (previously filed by Kilroy Realty Corporation as an exhibit on Form 8-K as filed with the Securities and Exchange Commission on May 21, 2020)

3.(i)2						Certificate of Limited Partnership of Kilroy Realty, L.P. (previously filed by Kilroy Realty, L.P., as an exhibit to the General Form for Registration of Securities on Form 10 as filed with the Securities and Exchange Commission on August 18, 2010)

3.(i)3						Amendment to the Certificate of Limited Partnership of Kilroy Realty, L.P. (previously filed by Kilroy Realty, L.P., as an exhibit to the General Form for Registration of Securities on Form 10 as filed with the Securities and Exchange Commission on August 18, 2010)

3.(ii)1						Ninth Amended and Restated Bylaws of Kilroy Realty Corporation (previously filed by Kilroy Realty Corporation as an exhibit on Form 8-K as filed with the Securities and Exchange Commission on June 4, 2024)

3.(ii)2						Seventh Amended and Restated Agreement of Limited Partnership of Kilroy Realty, L.P. dated as of August 15, 2012, as amended (previously filed by Kilroy Realty Corporation on Form 10-Q for the quarter ended June 30, 2014)

31.1*						Rule 13a-14(a)/15d-14(a) Certification of Chief Executive Officer of Kilroy Realty Corporation

31.2*						Rule 13a-14(a)/15d-14(a) Certification of Chief Financial Officer of Kilroy Realty Corporation

31.3*						Rule 13a-14(a)/15d-14(a) Certification of Chief Executive Officer of Kilroy Realty, L.P.

31.4*						Rule 13a-14(a)/15d-14(a) Certification of Chief Financial Officer of Kilroy Realty, L.P.

32.1*						Section 1350 Certification of Chief Executive Officer of Kilroy Realty Corporation

32.2*						Section 1350 Certification of Chief Financial Officer of Kilroy Realty Corporation

32.3*						Section 1350 Certification of Chief Executive Officer of Kilroy Realty, L.P.

32.4*						Section 1350 Certification of Chief Financial Officer of Kilroy Realty, L.P.

101.1						The following Kilroy Realty Corporation and Kilroy Realty, L.P. financial information for the quarter ended September 30, 2024, formatted in inline XBRL (eXtensible Business Reporting Language): (i) Consolidated Balance Sheets (unaudited), (ii) Consolidated Statements of Operations (unaudited), (iii) Consolidated Statements of Equity (unaudited), (iv) Consolidated Statements of Capital (unaudited), (v) Consolidated Statements of Cash Flows (unaudited) and (vi) Notes to the Consolidated Financial Statements (unaudited).(1)

104.1*						Cover Page Interactive Data File - The cover page interactive data file does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document.

_______________


*			Filed herewith.
†			Management contract or compensatory plan or arrangement.
(1)			Pursuant to Rule 406T of Regulation S-T, these interactive data files are deemed not filed or part of a registration statement or prospectus for purposes of Sections 11 or 12 of the Securities Act of 1933 or Section 18 of the Securities Exchange Act of 1934 and otherwise are not subject to liability under these sections.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized on October 29, 2024.


KILROY REALTY CORPORATION

	By:	Angela M. Aman
		Angela M. Aman Chief Executive Officer (Principal Executive Officer)

	By:	Jeffrey R. Kuehling
		Jeffrey R. Kuehling Executive Vice President, Chief Financial Officer (Principal Financial Officer)

	By:	Merryl E. Werber
		Merryl E. Werber Senior Vice President, Chief Accounting Officer and Controller (Principal Accounting Officer)

SIGNATURES


KILROY REALTY, L.P.

	BY: KILROY REALTY CORPORATION
	Its general partner

	By:	Angela M. Aman
		Angela M. Aman Chief Executive Officer (Principal Executive Officer)

	By:	Jeffrey R. Kuehling
		Jeffrey R. Kuehling Executive Vice President, Chief Financial Officer (Principal Financial Officer)

	By:	Merryl E. Werber
		Merryl E. Werber Senior Vice President, Chief Accounting Officer and Controller (Principal Accounting Officer)

Exhibit 31.1

Certification of Chief Executive Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Angela M. Aman, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Kilroy Realty Corporation;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s Board of Directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.


/s/ Angela M. Aman
Angela M. Aman
Chief Executive Officer

Date: October 29, 2024

Exhibit 31.2

Certification of Chief Financial Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Jeffrey R. Kuehling, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Kilroy Realty Corporation;

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.


/s/ Jeffrey R. Kuehling
Jeffrey R. Kuehling
Executive Vice President, Chief Financial Officer

Date: October 29, 2024

Exhibit 31.3

Certification of Chief Executive Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Angela M. Aman, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Kilroy Realty, L.P.;

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.


/s/ Angela M. Aman
Angela M. Aman
Chief Executive Officer
Kilroy Realty Corporation, sole general partner of Kilroy Realty, L.P.

Date: October 29, 2024

Exhibit 31.4

Certification of Chief Financial Officer

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Jeffrey R. Kuehling, certify that:

1.I have reviewed this quarterly report on Form 10-Q of Kilroy Realty, L.P.;

4.The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5.The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's Board of Directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.


/s/ Jeffrey R. Kuehling
Jeffrey R. Kuehling
Executive Vice President, Chief Financial Officer
Kilroy Realty Corporation, sole general partner of Kilroy Realty, L.P.

Date: October 29, 2024

Exhibit 32.1

Certification of Chief Executive Officer

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Kilroy Realty Corporation (the “Company”) hereby certifies, to her knowledge, that:

(i)the accompanying Quarterly Report on Form 10-Q of the Company for the quarter ended September 30, 2024 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(ii)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.


/s/ Angela M. Aman
Angela M. Aman
Chief Executive Officer

Date:			October 29, 2024

The foregoing certification is being furnished solely pursuant to 18 U.S.C. § 1350, is not being filed as part of the Report or as a separate disclosure document, and is not being incorporated by reference into any filing of the Company or Kilroy Realty, L.P. under the Securities Act of 1933, as amended, or the Securities Act of 1934, as amended, (whether made before or after the date of the Report) irrespective of any general incorporation language contained in such filing. The signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

Exhibit 32.2

Certification of Chief Financial Officer

(ii)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.


/s/ Jeffrey R. Kuehling
Jeffrey R. Kuehling
Executive Vice President, Chief Financial Officer

Date:			October 29, 2024

Exhibit 32.3

Certification of Chief Executive Officer

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of Kilroy Realty Corporation, the sole general partner of Kilroy Realty, L.P. (the “Operating Partnership”), hereby certifies, to her knowledge, that:

(i)the accompanying Quarterly Report on Form 10-Q of the Operating Partnership for the quarter ended September 30, 2024 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(ii)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Operating Partnership.


/s/ Angela M. Aman
Angela M. Aman
Chief Executive Officer
Kilroy Realty Corporation, sole general partner of Kilroy Realty, L.P.

Date:			October 29, 2024

The foregoing certification is being furnished solely pursuant to 18 U.S.C. § 1350, is not being filed as part of the Report or as a separate disclosure document, and is not being incorporated by reference into any filing of Kilroy Realty Corporation or the Operating Partnership under the Securities Act of 1933, as amended, or the Securities Act of 1934, as amended, (whether made before or after the date of the Report) irrespective of any general incorporation language contained in such filing. The signed original of this written statement required by Section 906 has been provided to the Operating Partnership and will be retained by the Operating Partnership and furnished to the Securities and Exchange Commission or its staff upon request.

Exhibit 32.4

Certification of Chief Financial Officer

(ii)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Operating Partnership.


/s/ Jeffrey R. Kuehling
Jeffrey R. Kuehling
Executive Vice President, Chief Financial Officer
Kilroy Realty Corporation, sole general partner of Kilroy Realty, L.P.

Date:			October 29, 2024

The foregoing certification is being furnished solely pursuant to 18 U.S.C. § 1350, is not being filed as part of the Report or as a separate disclosure document, and is not being incorporated by reference into any filing of Kilroy Realty Corporation or the Operating Partnership under the Securities Act of 1933, as amended, or the Securities Act of 1934, as amended, (whether made before or after the date of the Report) irrespective of any general incorporation language contained in such filing. The signed original of this written statement required by Section 906 has been provided to the Operating Partnership and will be retained by the Operating Partnership and furnished to the Securities and Exchange Commission or its staff upon request.

Cover Page - shares	9 Months Ended
Cover Page - shares	Sep. 30, 2024	Oct. 25, 2024
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2024
Document Transition Report	false
Entity File Number	1-12675
Entity Registrant Name	KILROY REALTY CORPORATION
Entity Incorporation, State Code	MD
Entity Tax Identification Number	95-4598246
Entity Address, Address Line One	12200 W. Olympic Boulevard
Entity Address, Address Line Two	Suite 200
Entity Address, City or Town	Los Angeles
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	90064
City Area Code	310
Local Phone Number	481-8400
Title of 12(b) Security	Common Stock, $.01 par value
Security Exchange Name	NYSE
Trading Symbol	KRC
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		118,046,674
Entity Central Index Key	0001025996
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Amendment Flag	false
Kilroy Realty L.P.
Entity Information [Line Items]
Entity File Number	000-54005
Entity Registrant Name	KILROY REALTY, L.P.
Entity Incorporation, State Code	DE
Entity Tax Identification Number	95-4612685
Title of 12(g) Security	Common Units Representing Limited Partnership Interests
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Central Index Key	0001493976
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Amendment Flag	false

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
REAL ESTATE ASSETS (Note 2):
Land and improvements	$ 1,750,820	$ 1,743,170
Buildings and improvements	8,573,332	8,463,674
Undeveloped land and construction in progress	2,254,628	2,034,804
Total real estate assets held for investment	12,578,780	12,241,648
Accumulated depreciation and amortization	(2,747,494)	(2,518,304)
Total real estate assets held for investment, net	9,831,286	9,723,344
CASH AND CASH EQUIVALENTS	625,395	510,163
MARKETABLE SECURITIES (Notes 3 and 11)	27,144	284,670
CURRENT RECEIVABLES, NET	11,218	13,609
DEFERRED RENT RECEIVABLES, NET	455,613	460,979
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET (Note 2)	226,991	229,705
RIGHT OF USE GROUND LEASE ASSETS	129,492	125,506
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 4)	73,495	53,069
TOTAL ASSETS	11,380,634	11,401,045
LIABILITIES:
Secured debt, net (Notes 5 and 11)	599,478	603,225
Unsecured debt, net (Notes 5 and 11)	4,401,678	4,325,153
Accounts payable, accrued expenses, and other liabilities	354,785	371,179
Ground lease liabilities (Note 10)	128,606	124,353
Accrued dividends and distributions	64,844	64,440
Deferred revenue and acquisition-related intangible liabilities, net (Note 2)	151,670	173,638
Rents received in advance and tenant security deposits	71,033	79,364
Total liabilities	5,772,094	5,741,352
COMMITMENTS AND CONTINGENCIES (Note 10)
Stockholders’ Equity (Note 6):
Common stock, $.01 par value, 280,000,000 shares authorized, 118,046,674 and 117,239,558 shares issued and outstanding	1,181	1,173
Additional paid-in capital	5,203,195	5,205,839
Retained earnings	175,962	221,149
Total stockholders’ equity	5,380,338	5,428,161
Noncontrolling Interests (Notes 1 and 7):
Common units of the Operating Partnership	52,441	53,275
Noncontrolling interests in consolidated property partnerships	175,761	178,257
Total noncontrolling interests	228,202	231,532
Total equity	5,608,540	5,659,693
TOTAL LIABILITIES AND EQUITY (CAPITAL)	$ 11,380,634	$ 11,401,045

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	280,000,000	280,000,000
Common stock, issued (in shares)	118,046,674	117,239,558
Common stock, outstanding (in shares)	118,046,674	117,239,558

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Income Statement [Abstract]
Revenue, Product and Service [Extensible List]	Service [Member]	Service [Member]	Service [Member]	Service [Member]
REVENUES
Rental income (Note 9)	$ 285,951	$ 280,681	$ 836,760	$ 852,094
Other property income	3,987	2,913	12,490	8,584
Total revenues	289,938	283,594	849,250	860,678
EXPENSES
Property expenses	63,593	59,445	180,192	168,233
Real estate taxes	26,677	28,363	84,925	84,868
Ground leases (Note 10)	2,977	2,390	8,725	7,172
General and administrative expenses (Note 8)	18,066	24,761	54,596	71,356
Leasing costs	2,353	1,852	6,751	4,550
Depreciation and amortization	91,879	85,224	267,061	269,262
Total expenses	205,545	202,035	602,250	605,441
OTHER INCOME (EXPENSES)
Interest income	9,688	7,015	32,962	11,896
Interest expense (Note 5)	(36,408)	(29,837)	(112,042)	(81,891)
Total other expenses	(26,720)	(22,822)	(79,080)	(69,995)
NET INCOME	57,673	58,737	167,920	185,242
Net income attributable to noncontrolling common units of the Operating Partnership	(509)	(515)	(1,469)	(1,612)
Net income attributable to noncontrolling interests in consolidated property partnerships	(4,786)	(5,460)	(14,942)	(18,673)
Total income attributable to noncontrolling interests	(5,295)	(5,975)	(16,411)	(20,285)
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS	$ 52,378	$ 52,762	$ 151,509	$ 164,957
Net income available to common stockholders per share – basic (in dollars per share)	$ 0.44	$ 0.45	$ 1.27	$ 1.40
Net income available to common stockholders per share – diluted (in dollars per share)	$ 0.44	$ 0.45	$ 1.27	$ 1.40
Weighted average shares of common stock outstanding – basic (in shares)	117,830,481	117,184,609	117,515,623	117,133,420
Weighted average shares of common stock outstanding – diluted (in shares)	118,243,913	117,495,246	117,954,763	117,411,395

CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Total Stock- holders’ Equity	Common Stock	Additional Paid-in Capital	Retained Earnings	Noncontrolling Interests
Beginning balance (in shares) at Dec. 31, 2022			116,878,031
Beginning balance at Dec. 31, 2022	$ 5,674,961	$ 5,437,047	$ 1,169	$ 5,170,760	$ 265,118	$ 237,914
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	65,230	56,608			56,608	8,622
Issuance of share-based compensation awards	1,365	1,365		1,365
Non-cash amortization of share-based compensation	11,566	11,566		11,566
Settlement of restricted stock units for shares of common stock (in shares)			445,973
Settlement of restricted stock units for shares of common stock	0		$ 4	(4)
Repurchase of common stock and restricted stock units (in shares)			(203,042)
Repurchase of common stock and restricted stock units	(8,363)	(8,363)	$ (2)	(8,361)
Distributions to noncontrolling interests in consolidated property partnerships	(7,068)					(7,068)
Adjustment for noncontrolling interest	0	76		76		(76)
Dividends declared per common share and common unit ($0.54 per share/unit)	(65,269)	(64,647)			(64,647)	(622)
Ending balance (in shares) at Mar. 31, 2023			117,120,962
Ending balance at Mar. 31, 2023	5,672,422	5,433,652	$ 1,171	5,175,402	257,079	238,770
Beginning balance (in shares) at Dec. 31, 2022			116,878,031
Beginning balance at Dec. 31, 2022	5,674,961	5,437,047	$ 1,169	5,170,760	265,118	237,914
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	185,242
Ending balance (in shares) at Sep. 30, 2023			117,239,558
Ending balance at Sep. 30, 2023	5,667,525	5,433,944	$ 1,173	5,195,106	237,665	233,581
Beginning balance (in shares) at Mar. 31, 2023			117,120,962
Beginning balance at Mar. 31, 2023	5,672,422	5,433,652	$ 1,171	5,175,402	257,079	238,770
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	61,275	55,587			55,587	5,688
Issuance of share-based compensation awards	726	726		726
Non-cash amortization of share-based compensation	9,496	9,496		9,496
Settlement of restricted stock units for shares of common stock (in shares)			103,135
Settlement of restricted stock units for shares of common stock	0		$ 1	(1)
Repurchase of common stock and restricted stock units (in shares)			(46,189)
Repurchase of common stock and restricted stock units	(1,340)	(1,340)		(1,340)
Distributions to noncontrolling interests in consolidated property partnerships	(10,393)					(10,393)
Adjustment for noncontrolling interest	0	(56)		(56)		56
Dividends declared per common share and common unit ($0.54 per share/unit)	(64,592)	(63,971)			(63,971)	(621)
Ending balance (in shares) at Jun. 30, 2023			117,177,908
Ending balance at Jun. 30, 2023	5,667,594	5,434,094	$ 1,172	5,184,227	248,695	233,500
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	58,737	52,762			52,762	5,975
Issuance of share-based compensation awards	538	538		538
Non-cash amortization of share-based compensation	12,310	12,310		12,310
Settlement of restricted stock units for shares of common stock (in shares)			115,492
Settlement of restricted stock units for shares of common stock	0		$ 2	(2)
Repurchase of common stock and restricted stock units (in shares)			(53,842)
Repurchase of common stock and restricted stock units	(1,892)	(1,892)	$ (1)	(1,891)
Distributions to noncontrolling interests in consolidated property partnerships	(5,349)					(5,349)
Adjustment for noncontrolling interest	0	(76)		(76)		76
Dividends declared per common share and common unit ($0.54 per share/unit)	(64,413)	(63,792)			(63,792)	(621)
Ending balance (in shares) at Sep. 30, 2023			117,239,558
Ending balance at Sep. 30, 2023	$ 5,667,525	5,433,944	$ 1,173	5,195,106	237,665	233,581
Beginning balance (in shares) at Dec. 31, 2023	117,239,558		117,239,558
Beginning balance at Dec. 31, 2023	$ 5,659,693	5,428,161	$ 1,173	5,205,839	221,149	231,532
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	55,700	49,920			49,920	5,780
Issuance of share-based compensation awards	4,017	4,017		4,017
Non-cash amortization of share-based compensation	4,727	4,727		4,727
Settlement of restricted stock units for shares of common stock (in shares)			217,496
Settlement of restricted stock units for shares of common stock	0		$ 2	(2)
Repurchase of common stock and restricted stock units (in shares)			(90,649)
Repurchase of common stock and restricted stock units	(5,898)	(5,898)	$ (1)	(5,897)
Distributions to noncontrolling interests in consolidated property partnerships	(6,898)					(6,898)
Adjustment for noncontrolling interest	0	69		69		(69)
Dividends declared per common share and common unit ($0.54 per share/unit)	(68,610)	(67,989)			(67,989)	(621)
Ending balance (in shares) at Mar. 31, 2024			117,366,405
Ending balance at Mar. 31, 2024	$ 5,642,731	5,413,007	$ 1,174	5,208,753	203,080	229,724
Beginning balance (in shares) at Dec. 31, 2023	117,239,558		117,239,558
Beginning balance at Dec. 31, 2023	$ 5,659,693	5,428,161	$ 1,173	5,205,839	221,149	231,532
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 167,920
Ending balance (in shares) at Sep. 30, 2024	118,046,674		118,046,674
Ending balance at Sep. 30, 2024	$ 5,608,540	5,380,338	$ 1,181	5,203,195	175,962	228,202
Beginning balance (in shares) at Mar. 31, 2024			117,366,405
Beginning balance at Mar. 31, 2024	5,642,731	5,413,007	$ 1,174	5,208,753	203,080	229,724
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	54,547	49,211			49,211	5,336
Issuance of share-based compensation awards	1,085	1,085		1,085
Non-cash amortization of share-based compensation	6,942	6,942		6,942
Settlement of restricted stock units for shares of common stock (in shares)			19,395
Repurchase of common stock and restricted stock units (in shares)			(569)
Repurchase of common stock and restricted stock units	(20)	(20)		(20)
Distributions to noncontrolling interests in consolidated property partnerships	(5,911)					(5,911)
Adjustment for noncontrolling interest	0	(61)		(61)		61
Dividends declared per common share and common unit ($0.54 per share/unit)	(65,116)	(64,495)			(64,495)	(621)
Ending balance (in shares) at Jun. 30, 2024			117,385,231
Ending balance at Jun. 30, 2024	5,634,258	5,405,669	$ 1,174	5,216,699	187,796	228,589
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	57,673	52,378			52,378	5,295
Issuance of share-based compensation awards	1,107	1,107		1,107
Non-cash amortization of share-based compensation	6,682	6,682		6,682
Settlement of restricted stock units for shares of common stock (in shares)			1,249,236
Settlement of restricted stock units for shares of common stock	0		$ 13	(13)
Repurchase of common stock and restricted stock units (in shares)			(587,793)
Repurchase of common stock and restricted stock units	(21,718)	(21,718)	$ (6)	(21,712)
Distributions to noncontrolling interests in consolidated property partnerships	(4,629)					(4,629)
Adjustment for noncontrolling interest	0	432		432		(432)
Dividends declared per common share and common unit ($0.54 per share/unit)	$ (64,833)	(64,212)			(64,212)	(621)
Ending balance (in shares) at Sep. 30, 2024	118,046,674		118,046,674
Ending balance at Sep. 30, 2024	$ 5,608,540	$ 5,380,338	$ 1,181	$ 5,203,195	$ 175,962	$ 228,202

CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023
Statement of Stockholders' Equity [Abstract]
Dividends declared per share of common stock and common unit (in dollars per share)	$ 0.54	$ 0.54	$ 0.54	$ 0.54	$ 0.54	$ 0.54

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 167,920	$ 185,242
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	262,292	263,662
Depreciation of non-real estate furniture, fixtures, and equipment	4,769	5,600
Revenue reversals for doubtful accounts, net (Note 9)	4,657	3,931
Non-cash amortization of share-based compensation awards	13,271	28,360
Non-cash amortization of deferred financing costs and debt discounts	5,243	3,921
Non-cash amortization of net below market rents	(2,675)	(5,675)
Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(13,539)	(14,643)
Straight-line rents	(888)	(16,533)
Amortization of right of use ground lease assets	796	765
Net change in other operating assets	(7,427)	2,042
Net change in other operating liabilities	(1,507)	35,694
Net cash provided by operating activities	432,912	492,366
CASH FLOWS FROM INVESTING ACTIVITIES:
Maturity (Purchases) of certificates of deposit (Note 3)	256,581	(252,830)
Expenditures for development and redevelopment properties and undeveloped land	(290,593)	(338,794)
Expenditures for operating properties and other capital assets	(64,381)	(68,853)
Expenditures for acquisitions of operating properties (Note 2)	(35,155)	0
Net cash used in investing activities	(133,548)	(660,477)
CASH FLOWS FROM FINANCING ACTIVITIES:
Distributions to noncontrolling interests in consolidated property partnerships	(17,446)	(22,818)
Dividends and distributions paid to common stockholders and common unitholders	(191,938)	(191,499)
Repurchase of common stock and restricted stock units	(27,636)	(11,595)
Financing costs	(18,146)	(10,962)
Principal payments and repayments of secured debt	(4,482)	(4,310)
Proceeds from the issuance of unsecured debt (Note 5)	395,516	375,000
Repayments of unsecured debt (Note 5)	(320,000)	0
Borrowings on unsecured debt	0	320,000
Repurchases of unsecured debt	0	(14,290)
Net cash (used in) provided by financing activities	(184,132)	439,526
Net increase in cash and cash equivalents and restricted cash	115,232	271,415
Cash and cash equivalents and restricted cash, beginning of period	510,163	347,379
Cash and cash equivalents and restricted cash, end of period	$ 625,395	$ 618,794

CONSOLIDATED BALANCE SHEETS (KILROY REALTY, L.P.) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
REAL ESTATE ASSETS (Note 2):
Land and improvements	$ 1,750,820	$ 1,743,170
Buildings and improvements	8,573,332	8,463,674
Undeveloped land and construction in progress	2,254,628	2,034,804
Total real estate assets held for investment	12,578,780	12,241,648
Accumulated depreciation and amortization	(2,747,494)	(2,518,304)
Total real estate assets held for investment, net	9,831,286	9,723,344
CASH AND CASH EQUIVALENTS	625,395	510,163
MARKETABLE SECURITIES (Notes 3 and 11)	27,144	284,670
CURRENT RECEIVABLES, NET	11,218	13,609
DEFERRED RENT RECEIVABLES, NET	455,613	460,979
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET (Note 2)	226,991	229,705
RIGHT OF USE GROUND LEASE ASSETS	129,492	125,506
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 4)	73,495	53,069
TOTAL ASSETS	11,380,634	11,401,045
LIABILITIES:
Secured debt, net (Notes 5 and 11)	599,478	603,225
Unsecured debt, net (Notes 5 and 11)	4,401,678	4,325,153
Accounts payable, accrued expenses, and other liabilities	354,785	371,179
Ground lease liabilities (Note 10)	128,606	124,353
Accrued distributions	64,844	64,440
Deferred revenue and acquisition-related intangible liabilities, net (Note 2)	151,670	173,638
Rents received in advance and tenant security deposits	71,033	79,364
Total liabilities	5,772,094	5,741,352
COMMITMENTS AND CONTINGENCIES (Note 10)
CAPITAL:
TOTAL LIABILITIES AND EQUITY (CAPITAL)	11,380,634	11,401,045
Kilroy Realty L.P.
REAL ESTATE ASSETS (Note 2):
Land and improvements	1,750,820	1,743,170
Buildings and improvements	8,573,332	8,463,674
Undeveloped land and construction in progress	2,254,628	2,034,804
Total real estate assets held for investment	12,578,780	12,241,648
Accumulated depreciation and amortization	(2,747,494)	(2,518,304)
Total real estate assets held for investment, net	9,831,286	9,723,344
CASH AND CASH EQUIVALENTS	625,395	510,163
MARKETABLE SECURITIES (Notes 3 and 11)	27,144	284,670
CURRENT RECEIVABLES, NET	11,218	13,609
DEFERRED RENT RECEIVABLES, NET	455,613	460,979
DEFERRED LEASING COSTS AND ACQUISITION-RELATED INTANGIBLE ASSETS, NET (Note 2)	226,991	229,705
RIGHT OF USE GROUND LEASE ASSETS	129,492	125,506
PREPAID EXPENSES AND OTHER ASSETS, NET (Note 4)	73,495	53,069
TOTAL ASSETS	11,380,634	11,401,045
LIABILITIES:
Secured debt, net (Notes 5 and 11)	599,478	603,225
Unsecured debt, net (Notes 5 and 11)	4,401,678	4,325,153
Accounts payable, accrued expenses, and other liabilities	354,785	371,179
Ground lease liabilities (Note 10)	128,606	124,353
Accrued distributions	64,844	64,440
Deferred revenue and acquisition-related intangible liabilities, net (Note 2)	151,670	173,638
Rents received in advance and tenant security deposits	71,033	79,364
Total liabilities	5,772,094	5,741,352
COMMITMENTS AND CONTINGENCIES (Note 10)
CAPITAL:
Partner's Capital - Common units, 118,046,674 and 117,239,558 held by the general partner and 1,150,574 held by common limited partners issued and outstanding	5,432,779	5,481,436
Noncontrolling interests in consolidated property partnerships (Note 1)	175,761	178,257
Total capital	5,608,540	5,659,693
TOTAL LIABILITIES AND EQUITY (CAPITAL)	$ 11,380,634	$ 11,401,045

CONSOLIDATED BALANCE SHEETS (KILROY REALTY, L.P.)(Parenthetical) - Common Units - Kilroy Realty L.P. - shares	Sep. 30, 2024	Dec. 31, 2023
General partner, units issued (in shares)	118,046,674	117,239,558
General partners, units outstanding (in shares)	118,046,674	117,239,558
Limited partners, units issued (in shares)	1,150,574	1,150,574
Limited partners, units outstanding (in shares)	1,150,574	1,150,574

CONSOLIDATED STATEMENTS OF OPERATIONS (KILROY REALTY, L.P.) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenue, Product and Service [Extensible List]	Service [Member]	Service [Member]	Service [Member]	Service [Member]
REVENUES
Rental income (Note 9)	$ 285,951	$ 280,681	$ 836,760	$ 852,094
Other property income	3,987	2,913	12,490	8,584
Total revenues	289,938	283,594	849,250	860,678
EXPENSES
Property expenses	63,593	59,445	180,192	168,233
Real estate taxes	26,677	28,363	84,925	84,868
Ground leases (Note 10)	2,977	2,390	8,725	7,172
General and administrative expenses (Note 8)	18,066	24,761	54,596	71,356
Leasing costs	2,353	1,852	6,751	4,550
Depreciation and amortization	91,879	85,224	267,061	269,262
Total expenses	205,545	202,035	602,250	605,441
OTHER INCOME (EXPENSES)
Interest income	9,688	7,015	32,962	11,896
Interest expense (Note 5)	(36,408)	(29,837)	(112,042)	(81,891)
Total other expenses	(26,720)	(22,822)	(79,080)	(69,995)
NET INCOME	57,673	58,737	167,920	185,242
Net income attributable to noncontrolling interests in consolidated property partnerships and subsidiaries	(5,295)	(5,975)	(16,411)	(20,285)
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS (UNITHOLDERS)	$ 52,378	$ 52,762	$ 151,509	$ 164,957
Net income available to common unitholders per unit – basic (in dollars per share)	$ 0.44	$ 0.45	$ 1.27	$ 1.40
Net income available to common unitholders per unit – diluted (in dollars per share)	$ 0.44	$ 0.45	$ 1.27	$ 1.40
Weighted average common units outstanding – basic (in shares)	117,830,481	117,184,609	117,515,623	117,133,420
Weighted average common units outstanding – diluted (in shares)	118,243,913	117,495,246	117,954,763	117,411,395
Kilroy Realty L.P.
Revenue, Product and Service [Extensible List]	Service [Member]	Service [Member]	Service [Member]	Service [Member]
REVENUES
Rental income (Note 9)	$ 285,951	$ 280,681	$ 836,760	$ 852,094
Other property income	3,987	2,913	12,490	8,584
Total revenues	289,938	283,594	849,250	860,678
EXPENSES
Property expenses	63,593	59,445	180,192	168,233
Real estate taxes	26,677	28,363	84,925	84,868
Ground leases (Note 10)	2,977	2,390	8,725	7,172
General and administrative expenses (Note 8)	18,066	24,761	54,596	71,356
Leasing costs	2,353	1,852	6,751	4,550
Depreciation and amortization	91,879	85,224	267,061	269,262
Total expenses	205,545	202,035	602,250	605,441
OTHER INCOME (EXPENSES)
Interest income	9,688	7,015	32,962	11,896
Interest expense (Note 5)	(36,408)	(29,837)	(112,042)	(81,891)
Total other expenses	(26,720)	(22,822)	(79,080)	(69,995)
NET INCOME	57,673	58,737	167,920	185,242
Net income attributable to noncontrolling interests in consolidated property partnerships and subsidiaries	(4,786)	(5,460)	(14,942)	(18,673)
NET INCOME AVAILABLE TO COMMON STOCKHOLDERS (UNITHOLDERS)	$ 52,887	$ 53,277	$ 152,978	$ 166,569
Net income available to common unitholders per unit – basic (in dollars per share)	$ 0.44	$ 0.45	$ 1.27	$ 1.40
Net income available to common unitholders per unit – diluted (in dollars per share)	$ 0.44	$ 0.45	$ 1.27	$ 1.40
Weighted average common units outstanding – basic (in shares)	118,981,055	118,335,183	118,666,197	118,283,994
Weighted average common units outstanding – diluted (in shares)	119,394,487	118,645,820	119,105,337	118,561,969

CONSOLIDATED STATEMENTS OF CAPITAL (KILROY REALTY, L.P.) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income	$ 57,673	$ 54,547	$ 55,700	$ 58,737	$ 61,275	$ 65,230	$ 167,920	$ 185,242
Non-cash amortization of share-based compensation	6,682	6,942	4,727	12,310	9,496	11,566
Settlement of restricted stock units for shares of common stock	0		0	0	0	0
Distributions to noncontrolling interests in consolidated property partnerships	(4,629)	(5,911)	(6,898)	(5,349)	(10,393)	(7,068)
Noncontrolling Interests in Consolidated Property Partnerships
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income	5,295	5,336	5,780	5,975	5,688	8,622
Distributions to noncontrolling interests in consolidated property partnerships	(4,629)	(5,911)	(6,898)	(5,349)	(10,393)	(7,068)
Kilroy Realty L.P.
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance	5,634,258	5,642,731	5,659,693	5,667,594	5,672,422	5,674,961	5,659,693	5,674,961
Net income	57,673	54,547	55,700	58,737	61,275	65,230	167,920	185,242
Issuance of common units				0
Issuance of share-based compensation awards	1,107	1,085	4,017	538	726	1,365
Non-cash amortization of share-based compensation	6,682	6,942	4,727	12,310	9,496	11,566
Settlement of restricted stock units for shares of common stock				0
Repurchase of common units and restricted stock units	(21,718)	(20)	(5,898)	(1,892)	(1,340)	(8,363)
Contributions from noncontrolling interests in consolidated property partnerships				0
Distributions to noncontrolling interests in consolidated property partnerships	(4,629)	(5,911)	(6,898)	(5,349)	(10,393)	(7,068)
Preferred dividends				0
Distributions declared per common unit ($0.54 per unit)	(64,833)	(65,116)	(68,610)	(64,413)	(64,592)	(65,269)
Ending balance	$ 5,608,540	$ 5,634,258	$ 5,642,731	$ 5,667,525	$ 5,667,594	$ 5,672,422	$ 5,608,540	$ 5,667,525
Kilroy Realty L.P. \| Partners’ Capital
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance (in shares)	118,535,805	118,516,979	118,390,132	118,328,482	118,271,536	118,028,605	118,390,132	118,028,605
Beginning balance	$ 5,458,654	$ 5,466,094	$ 5,481,436	$ 5,487,452	$ 5,487,038	$ 5,490,571	$ 5,481,436	$ 5,490,571
Net income	52,887	49,669	50,422	53,277	56,124	57,168
Issuance of share-based compensation awards	1,107	1,085	4,017	538	726	1,365
Non-cash amortization of share-based compensation	$ 6,682	$ 6,942	$ 4,727	$ 12,310	$ 9,496	$ 11,566
Settlement of restricted stock units (in shares)	1,249,236	19,395	217,496	115,492	103,135	445,973
Repurchase of common units and restricted stock units (in shares)	(587,793)	(569)	(90,649)	(53,842)	(46,189)	(203,042)
Repurchase of common units and restricted stock units	$ (21,718)	$ (20)	$ (5,898)	$ (1,892)	$ (1,340)	$ (8,363)
Distributions declared per common unit ($0.54 per unit)	$ (64,833)	$ (65,116)	$ (68,610)	$ (64,413)	$ (64,592)	$ (65,269)
Ending balance (in shares)	119,197,248	118,535,805	118,516,979	118,390,132	118,328,482	118,271,536	119,197,248	118,390,132
Ending balance	$ 5,432,779	$ 5,458,654	$ 5,466,094	$ 5,487,272	$ 5,487,452	$ 5,487,038	$ 5,432,779	$ 5,487,272
Kilroy Realty L.P. \| Noncontrolling Interests in Consolidated Property Partnerships
Increase (Decrease) in Partners' Capital [Roll Forward]
Beginning balance	175,604	176,637	178,257	180,142	185,384	184,390	178,257	184,390
Net income	4,786	4,878	5,278	5,460	5,151	8,062
Contributions from noncontrolling interests in consolidated property partnerships				0
Distributions to noncontrolling interests in consolidated property partnerships	(4,629)	(5,911)	(6,898)	(5,349)	(10,393)	(7,068)
Ending balance	$ 175,761	$ 175,604	$ 176,637	$ 180,253	$ 180,142	$ 185,384	$ 175,761	$ 180,253

CONSOLIDATED STATEMENTS OF CAPITAL (KILROY REALTY, L.P.) (Parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023
Kilroy Realty L.P.
Dividends declared per common unit (in dollars per unit)	$ 0.54	$ 0.54	$ 0.54	$ 0.54	$ 0.54	$ 0.54

CONSOLIDATED STATEMENTS OF CASH FLOWS (KILROY REALTY, L.P.) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 167,920	$ 185,242
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	262,292	263,662
Depreciation of non-real estate furniture, fixtures, and equipment	4,769	5,600
Revenue reversals for doubtful accounts, net (Note 9)	4,657	3,931
Non-cash amortization of share-based compensation awards	13,271	28,360
Non-cash amortization of deferred financing costs and debt discounts	5,243	3,921
Non-cash amortization of net below market rents	(2,675)	(5,675)
Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(13,539)	(14,643)
Straight-line rents	(888)	(16,533)
Amortization of right of use ground lease assets	796	765
Net change in other operating assets	(7,427)	2,042
Net change in other operating liabilities	(1,507)	35,694
Net cash provided by operating activities	432,912	492,366
CASH FLOWS FROM INVESTING ACTIVITIES:
Maturity (Purchases) of certificates of deposit (Note 3)	256,581	(252,830)
Expenditures for development and redevelopment properties and undeveloped land	(290,593)	(338,794)
Expenditures for operating properties and other capital assets	(64,381)	(68,853)
Expenditures for acquisitions of operating properties (Note 2)	(35,155)	0
Net cash used in investing activities	(133,548)	(660,477)
CASH FLOWS FROM FINANCING ACTIVITIES:
Distributions to noncontrolling interests in consolidated property partnerships	(17,446)	(22,818)
Distributions paid to common unitholders	(191,938)	(191,499)
Repurchase of common stock and restricted stock units	(27,636)	(11,595)
Financing costs	(18,146)	(10,962)
Principal payments and repayments of secured debt	(4,482)	(4,310)
Proceeds from the issuance of unsecured debt (Note 5)	395,516	375,000
Repayments of unsecured debt (Note 5)	(320,000)	0
Borrowings on unsecured debt	0	320,000
Repurchases of unsecured debt	0	(14,290)
Net cash (used in) provided by financing activities	(184,132)	439,526
Net increase in cash and cash equivalents and restricted cash	115,232	271,415
Cash and cash equivalents and restricted cash, beginning of period	510,163	347,379
Cash and cash equivalents and restricted cash, end of period	625,395	618,794
Kilroy Realty L.P.
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	167,920	185,242
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of real estate assets and leasing costs	262,292	263,662
Depreciation of non-real estate furniture, fixtures, and equipment	4,769	5,600
Revenue reversals for doubtful accounts, net (Note 9)	4,657	3,931
Non-cash amortization of share-based compensation awards	13,271	28,360
Non-cash amortization of deferred financing costs and debt discounts	5,243	3,921
Non-cash amortization of net below market rents	(2,675)	(5,675)
Non-cash amortization of deferred revenue related to tenant-funded tenant improvements	(13,539)	(14,643)
Straight-line rents	(888)	(16,533)
Amortization of right of use ground lease assets	796	765
Net change in other operating assets	(7,427)	2,042
Net change in other operating liabilities	(1,507)	35,694
Net cash provided by operating activities	432,912	492,366
CASH FLOWS FROM INVESTING ACTIVITIES:
Maturity (Purchases) of certificates of deposit (Note 3)	256,581	(252,830)
Expenditures for development and redevelopment properties and undeveloped land	(290,593)	(338,794)
Expenditures for operating properties and other capital assets	(64,381)	(68,853)
Expenditures for acquisitions of operating properties (Note 2)	(35,155)	0
Net cash used in investing activities	(133,548)	(660,477)
CASH FLOWS FROM FINANCING ACTIVITIES:
Distributions to noncontrolling interests in consolidated property partnerships	(17,446)	(22,818)
Distributions paid to common unitholders	(191,938)	(191,499)
Repurchase of common stock and restricted stock units	(27,636)	(11,595)
Financing costs	(18,146)	(10,962)
Principal payments and repayments of secured debt	(4,482)	(4,310)
Proceeds from the issuance of unsecured debt (Note 5)	395,516	375,000
Repayments of unsecured debt (Note 5)	(320,000)	0
Borrowings on unsecured debt	0	320,000
Net cash (used in) provided by financing activities	(184,132)	439,526
Net increase in cash and cash equivalents and restricted cash	115,232	271,415
Cash and cash equivalents and restricted cash, beginning of period	510,163	347,379
Cash and cash equivalents and restricted cash, end of period	$ 625,395	$ 618,794

Organization, Ownership, and Basis of Presentation

9 Months Ended

Sep. 30, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization, Ownership, and Basis of Presentation

Organization and Ownership

Our stabilized portfolio of operating properties was comprised of the following properties at September 30, 2024:


	Number of Buildings	Rentable Square Feet	Number of Tenants	Percentage Occupied (1)
Stabilized Office Properties (2)	123	17,140,465	424	84.3	%

________________________

(1)Represents economic occupancy.

(2)Includes stabilized life science and retail space.


	Number of Projects	Number of Units	2024 Average Occupancy
Stabilized Residential Properties	3	1,001	92.6	%

As of September 30, 2024, the following properties were excluded from our stabilized portfolio:


	Number of Properties/Projects	Estimated Rentable Square Feet (1)


In-process redevelopment projects - tenant improvement	2	100,000
In-process development projects - under construction	1	875,000

________________________

(1)Estimated rentable square feet upon completion.

Ownership and Basis of Presentation

Variable Interest Entities

Recently Issued Accounting Pronouncements

Acquisitions

9 Months Ended

Sep. 30, 2024

Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]

Acquisitions

Operating Property Acquisitions

During the nine months ended September 30, 2024, we acquired the operating property listed below from an unrelated third party:

Property

Date of Acquisition

Number of Buildings

Rentable Square Feet

Purchase Price (in millions) (1)

12707 & 12777 High Bluff Drive (Junction at Del Mar)

September 27, 2024

103,731

35.0

________________________

(1)Excludes acquisition-related costs.


	Total 2024 Operating Property Acquisitions (1)(2)
Assets
Land and improvements	$	6,000
Buildings and improvements (3)	15,703
Deferred leasing costs and acquisition-related intangible assets (4)	13,534
Prepaid expenses and other assets, net	30
Total assets acquired	$	35,267
Liabilities
Acquisition-related intangible liabilities (5)	$	267
Total liabilities assumed	267
Net assets and liabilities acquired	$	35,000

________________________

(2)Excludes acquisition related costs of $0.2 million.

(3)Represents buildings, building improvements, and tenant improvements.

(5)Represents below-market leases (approximately $0.3 million with a weighted average amortization period of 4.9 years).

Marketable Securities

9 Months Ended

Sep. 30, 2024

Investments, Debt and Equity Securities [Abstract]

Marketable Securities

Marketable securities consisted of the following at September 30, 2024 and December 31, 2023:


	September 30, 2024		December 31, 2023
	(in thousands)
Deferred compensation plan assets	$	27,144	$	28,089
Certificates of deposit (1)	—		256,581
Total marketable securities	$	27,144	$	284,670

________________________

(1)The certificates of deposit had an original issuance term greater than three months but less than 12 months.

Prepaid Expenses and Other Assets, Net

9 Months Ended

Sep. 30, 2024

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Prepaid Expenses and Other Assets, Net

Prepaid expenses and other assets, net consisted of the following at September 30, 2024 and December 31, 2023:


	September 30, 2024		December 31, 2023
	(in thousands)
Furniture, fixtures and other long-lived assets, net	$	38,934	$	37,073
Prepaid expenses and deferred financing costs, net	28,346		10,532
Other assets	6,215		5,464
Total prepaid expenses and other assets, net	$	73,495	$	53,069

Secured and Unsecured Debt of the Operating Partnership

9 Months Ended

Sep. 30, 2024

Kilroy Realty L.P.

Debt Instrument [Line Items]

Secured and Unsecured Debt of the Operating Partnership

Unsecured Senior Notes - Registered Public Offering

Unsecured Revolving Credit Facility and Term Loan Facilities

The following table summarizes the balance and terms of our unsecured revolving credit facility as of September 30, 2024 and December 31, 2023:


	Unsecured Revolving Credit Facility
	September 30, 2024			December 31, 2023
	(in thousands)
Outstanding borrowings	$	—		$	—
Remaining borrowing capacity (1)	1,100,000			1,100,000
Total borrowing capacity (1)	$	1,100,000		$	1,100,000
Interest rate (2)	5.96		%	6.38		%
Facility fee-annual rate (3)	0.200%
Maturity date (4)	July 31, 2028			July 31, 2025

________________________

(4)The maturity date may be extended by two six-month periods, at the Operating Partnership’s election.


	2024 Term Loan Facility
	September 30, 2024
	(in thousands)
Outstanding borrowings	$	200,000
Remaining borrowing capacity	—
Total borrowing capacity (1)	$	200,000
Interest rate (2)	6.16		%
Maturity date (3)	October 3, 2025

____________________

(3)The maturity date may be extended by two 12-month periods, at the Operating Partnership’s election.


	2022 Term Loan Facility
	December 31, 2023
	(in thousands)
Outstanding borrowings	$	520,000
Remaining borrowing capacity	—
Total borrowing capacity	$	520,000
Interest rate (1)	6.41		%
Undrawn facility fee-annual rate (2)	0.200%
Maturity date	October 3, 2024

____________________

(1)Our 2022 Term Loan Facility interest rate was calculated using Adjusted SOFR plus a margin of 0.950% based on our credit rating as of December 31, 2023.

Debt Covenants and Restrictions

Debt Maturities

The following table summarizes the stated debt maturities and scheduled amortization payments for all outstanding debt as of September 30, 2024:


Year	(in thousands)
Remaining 2024	$	405,235
2025 (1)	606,246
2026	401,317
2027	249,125
2028	400,000
2029	475,000
Thereafter	2,500,000
Total aggregate principal value	5,036,923
Less: unamortized net discounts and deferred financing costs (2)	(35,767)
Total debt, net	$	5,001,156

________________________

(1)Includes the $200.0 million outstanding as of September 30, 2024 on the 2024 Term Loan Facility, for which the Company has two 12-month extension options.

Capitalized Interest and Loan Fees


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
	(in thousands)
Gross interest expense	$	57,235	$	49,893	$	173,191	$	139,148
Capitalized interest and deferred financing costs	(20,827)		(20,056)		(61,149)		(57,257)
Interest expense	$	36,408	$	29,837	$	112,042	$	81,891

Stockholders' Equity of the Company	9 Months Ended
Stockholders' Equity of the Company	Sep. 30, 2024
Equity [Abstract]
Stockholders' Equity of the Company	Stockholders’ Equity of the Company At-The-Market Stock Offering Program In March 2024, the Company terminated its at-the-market (“ATM”) stock offering program (the “2018 ATM Program”) and commenced a new at-the-market stock offering program (the “2024 ATM”), under which we may currently offer and sell shares of our common stock having an aggregate gross sales price up to $500.0 million from time to time in “at-the-market” offerings. In connection with the 2024 ATM Program, the Company may also, at its discretion, enter into forward equity sale agreements. The use of forward equity sale agreements allows the Company to lock in a share price on the sale of shares of our common stock at the time an agreement is executed, but defer settling the forward equity sale agreements and receiving the proceeds from the sale of shares until a later date. The Company did not complete any sales of common stock under either program during the nine months ended September 30, 2024. Share Repurchase Program In February 2024, the Company’s Board of Directors approved a new share repurchase program (the “Share Repurchase Program”) that authorizes the repurchase of shares of the Company’s common stock having an aggregate gross purchase price of up to $500.0 million. The Share Repurchase Program supersedes and replaces the Company’s previous share repurchase program. Under the Share Repurchase Program, repurchases may be made from time to time using a variety of methods, which may include open market purchases and privately negotiated transactions. The specific timing, price, and size of purchases will depend on prevailing stock prices, general economic and market conditions, and other considerations. The Share Repurchase Program does not have a termination date and repurchases may be discontinued at any time. The Company did not repurchase any common stock under the Share Repurchase Program during the nine months ended September 30, 2024.

Noncontrolling Interests on the Company's Consolidated Financial Statements	9 Months Ended
	Sep. 30, 2024
Noncontrolling Interest [Abstract]
Noncontrolling Interests on the Company's Consolidated Financial Statements	Noncontrolling Interests on the Company’s Consolidated Financial Statements Common Units of the Operating Partnership The Company owned an approximate 99.0% common general partnership interest in the Operating Partnership as of September 30, 2024 and December 31, 2023. The remaining approximate 1.0% common limited partnership interest as of September 30, 2024 and December 31, 2023 was owned by non-affiliated investors and a former executive officer and director in the form of noncontrolling common units. There were 1,150,574 common units outstanding held by these investors and a former executive officer and director as of September 30, 2024 and December 31, 2023. The noncontrolling common units may be redeemed by unitholders for cash. Except under certain circumstances, we, at our option, may satisfy the cash redemption obligation with shares of the Company’s common stock on a one-for-one basis. If satisfied in cash, the value for each noncontrolling common unit upon redemption is the amount equal to the average of the closing quoted price per share of the Company’s common stock, par value $0.01 per share, as reported on the NYSE for the ten trading days immediately preceding the applicable redemption date. The aggregate value upon redemption of the then-outstanding noncontrolling common units was $45.4 million and $47.0 million as of September 30, 2024 and December 31, 2023, respectively. This redemption value does not necessarily represent the amount that would be distributed with respect to each noncontrolling common unit in the event of our termination or liquidation. In the event of our termination or liquidation, it is generally expected that each common unit would be entitled to a liquidating distribution equal to the liquidating distribution payable in respect of each share of the Company’s common stock.

Share-Based Compensation

9 Months Ended

Sep. 30, 2024

Share-Based Payment Arrangement [Abstract]

Share-Based Compensation

Stockholder Approved Share-Based Incentive Compensation Plan

Executive Transitions

2024 Share-Based Compensation Grants

2024 Performance-Based RSU Grant


			Fair Value Assumptions
Valuation date			February 1, 2024
Fair value per share on valuation date (1)			$36.00
Expected share price volatility			34.0%
Risk-free interest rate			3.98%

________________________

(1)For one participant, the fair value per share on the valuation date for their 2024 Performance-Based RSUs is $36.43.

2024 Time-Based RSU Grants

2023 and 2022 Performance-Based RSUs

Share-Based Compensation Cost Recorded During the Period

Rental Income and Future Minimum Rent

9 Months Ended

Sep. 30, 2024

Leases [Abstract]

Rental Income and Future Minimum Rent

The table below sets forth the allocation of rental income between fixed and variable payments and net collectability reversals for the three and nine months ended September 30, 2024 and 2023:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
	(in thousands)
Fixed lease payments	$	234,812	$	232,090	$	691,596	$	713,254
Variable lease payments	51,907		49,232		149,821		142,771
Net collectability reversals (1)	(768)		(641)		(4,657)		(3,931)
Total rental income	$	285,951	$	280,681	$	836,760	$	852,094

_____________________


Year Ending	(in thousands)
Remaining 2024	$	204,645
2025	815,864
2026	775,705
2027	720,685
2028	678,862
2029	589,121
Thereafter	1,520,529
Total (1)	$	5,305,411

_____________________

(1)Excludes residential leases and leases with a term of one year or less.

Commitments and Contingencies

9 Months Ended

Sep. 30, 2024

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

General

Ground Leases

The following table summarizes our properties that are held subject to long-term noncancellable ground lease obligations as of September 30, 2024 and the respective contractual expiration dates:


Property			Contractual Expiration Date
701, 801, and 837 N. 34th Street, Seattle, WA (1)			December 2041
1701 Page Mill Road and 3150 Porter Drive, Palo Alto, CA			December 2067
Kilroy Airport Center Phases I, II, and III, Long Beach, CA (2)			July 2084
3243 S. La Cienega Boulevard, Los Angeles, CA			October 2106
200 W. 6th Street, Austin, TX			December 2112

____________________

(2) Assumes the impact of all extension options held by the Company.

The minimum commitment under our ground leases, as of September 30, 2024, for future periods is as follows:


Year Ending	(in thousands)
Remaining 2024	$	1,684
2025	6,772
2026	6,809
2027	6,850
2028	6,869
2029	6,869
Thereafter	367,744
Total undiscounted cash flows (1)(2)(3)(4)(5)(6)	$	403,597
Present value discount	(274,991)
Ground lease liabilities	$	128,606

________________________

(5) One of our ground lease obligations is subject to fixed 5% ground rent increases every five years, with the next increase occurring on November 1, 2027.

Environmental Matters

As of September 30, 2024, we had accrued environmental remediation liabilities of approximately $72.1 million in connection with certain of our in-process and future development projects.

Fair Value Measurements and Disclosures

9 Months Ended

Sep. 30, 2024

Fair Value Disclosures [Abstract]

Fair Value Measurements and Disclosures

Assets and Liabilities Reported at Fair Value


	Fair Value (Level 1) (1)
	September 30, 2024		December 31, 2023
Description	(in thousands)
Deferred Compensation Plan assets (2)	$	27,144	$	28,089

________________________

(1) Based on quoted prices in active markets for identical securities.

(2) The Deferred Compensation Plan assets are held in a limited rabbi trust.

Financial Instruments Disclosed at Fair Value

The following table sets forth the carrying value and the fair value of our other financial instruments as of September 30, 2024 and December 31, 2023:


	September 30, 2024				December 31, 2023
	Carrying Value		Fair Value (1)		Carrying Value		Fair Value (1)
	(in thousands)
Assets
Certificates of deposit (2)	$	—	$	—	$	256,581	$	256,581
Liabilities
Secured debt, net	$	599,478	$	591,319	$	603,225	$	585,826
Unsecured debt, net	$	4,401,678	$	4,143,923	$	4,325,153	$	3,927,104

________________________

(1)Fair value calculated using Level 2 inputs, which are based on model-derived valuations in which significant inputs and significant value drivers are observable in active markets.

(2)The carrying value of the certificates of deposit approximate their fair values due to their short-term maturities. See Note 3 “Marketable Securities” for additional information.

Net Income Available to Common Stockholders Per Share of the Company

9 Months Ended

Sep. 30, 2024

Earnings Per Share [Abstract]

Net Income Available to Common Stockholders Per Share of the Company


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
	(in thousands, except share and per share amounts)
Numerator:
Net income available to common stockholders	$	52,378	$	52,762	$	151,509	$	164,957

Allocation to participating securities (1)	(173)		(269)		(1,792)		(959)
Numerator for basic and diluted net income available to common stockholders	$	52,205	$	52,493	$	149,717	$	163,998
Denominator:
Basic weighted average vested shares outstanding	117,830,481		117,184,609		117,515,623		117,133,420
Effect of dilutive securities	413,432		310,637		439,140		277,975
Diluted weighted average vested shares and common stock equivalents outstanding	118,243,913		117,495,246		117,954,763		117,411,395
Basic earnings per share:
Net income available to common stockholders per share	$	0.44	$	0.45	$	1.27	$	1.40
Diluted earnings per share:
Net income available to common stockholders per share	$	0.44	$	0.45	$	1.27	$	1.40

________________________

(1)Participating securities include certain time-based RSUs and vested market measure-based RSUs.

Net Income Available to Common Unitholders Per Unit of the Operating Partnership

9 Months Ended

Sep. 30, 2024

Net Income Available To Common Unitholders [Line Items]

Net Income Available to Common Unitholders Per Unit of the Operating Partnership

Net Income Available to Common Stockholders Per Share of the Company


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
	(in thousands, except share and per share amounts)
Numerator:
Net income available to common stockholders	$	52,378	$	52,762	$	151,509	$	164,957

Allocation to participating securities (1)	(173)		(269)		(1,792)		(959)
Numerator for basic and diluted net income available to common stockholders	$	52,205	$	52,493	$	149,717	$	163,998
Denominator:
Basic weighted average vested shares outstanding	117,830,481		117,184,609		117,515,623		117,133,420
Effect of dilutive securities	413,432		310,637		439,140		277,975
Diluted weighted average vested shares and common stock equivalents outstanding	118,243,913		117,495,246		117,954,763		117,411,395
Basic earnings per share:
Net income available to common stockholders per share	$	0.44	$	0.45	$	1.27	$	1.40
Diluted earnings per share:
Net income available to common stockholders per share	$	0.44	$	0.45	$	1.27	$	1.40

________________________

(1)Participating securities include certain time-based RSUs and vested market measure-based RSUs.

Kilroy Realty L.P.

Net Income Available To Common Unitholders [Line Items]

Net Income Available to Common Unitholders Per Unit of the Operating Partnership


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
	(in thousands, except unit and per unit amounts)
Numerator:
Net income available to common unitholders	$	52,887	$	53,277	$	152,978	$	166,569

Allocation to participating securities (1)	(173)		(269)		(1,792)		(959)
Numerator for basic and diluted net income available to common unitholders	$	52,714	$	53,008	$	151,186	$	165,610
Denominator:
Basic weighted average vested units outstanding	118,981,055		118,335,183		118,666,197		118,283,994
Effect of dilutive securities	413,432		310,637		439,140		277,975
Diluted weighted average vested units and common unit equivalents outstanding	119,394,487		118,645,820		119,105,337		118,561,969
Basic earnings per unit:
Net income available to common unitholders per unit	$	0.44	$	0.45	$	1.27	$	1.40
Diluted earnings per unit:
Net income available to common unitholders per unit	$	0.44	$	0.45	$	1.27	$	1.40

________________________

(1)Participating securities include certain time-based RSUs and vested market measure-based RSUs.

Share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid) are considered participating securities. The impact of potentially dilutive common units, including stock options and RSU are considered in our diluted earnings per share calculation for the three and nine months ended September 30, 2024 and 2023. Certain market measure-based RSUs are not included in dilutive securities for the three and nine months ended September 30, 2024 and 2023, as not all performance metrics had been met by the end of the applicable reporting periods. Additionally, certain unvested time-based RSUs are not included in dilutive securities for the nine months ended September 30, 2024 and nine months ended September 30, 2023, as they were anti-dilutive. See Note 8 “Share-Based Compensation” for additional information regarding share-based compensation.

Supplemental Cash Flow Information of the Company

9 Months Ended

Sep. 30, 2024

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information of the Company

Supplemental Cash Flows Information of the Company

Supplemental cash flows information as follows (in thousands):


	Nine Months Ended September 30,
	2024		2023
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $57,839 and $53,637 as of September 30, 2024 and 2023, respectively	$	86,410	$	60,528
Cash paid for amounts included in the measurement of ground lease liabilities	$	5,156	$	4,939
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	$	60,072	$	98,631
Tenant improvements funded directly by tenants	$	2,204	$	6,026
Remeasurement of ground lease liability and related right of use ground lease asset	$	4,782	$	—






NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders	$	64,844	$	64,423

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2024 and 2023.


	Nine Months Ended September 30,
	2024		2023
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	510,163	$	347,379
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	510,163	$	347,379

Cash and cash equivalents at end of period	$	625,395	$	618,794
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	625,395	$	618,794

Supplemental Cash Flow Information of the Operating Partnership

9 Months Ended

Sep. 30, 2024

Other Significant Noncash Transactions [Line Items]

Supplemental Cash Flow Information of the Operating Partnership

Supplemental Cash Flows Information of the Company

Supplemental cash flows information as follows (in thousands):


	Nine Months Ended September 30,
	2024		2023
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $57,839 and $53,637 as of September 30, 2024 and 2023, respectively	$	86,410	$	60,528
Cash paid for amounts included in the measurement of ground lease liabilities	$	5,156	$	4,939
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	$	60,072	$	98,631
Tenant improvements funded directly by tenants	$	2,204	$	6,026
Remeasurement of ground lease liability and related right of use ground lease asset	$	4,782	$	—






NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders	$	64,844	$	64,423

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2024 and 2023.


	Nine Months Ended September 30,
	2024		2023
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	510,163	$	347,379
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	510,163	$	347,379

Cash and cash equivalents at end of period	$	625,395	$	618,794
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	625,395	$	618,794

Kilroy Realty L.P.

Other Significant Noncash Transactions [Line Items]

Supplemental Cash Flow Information of the Operating Partnership

Supplemental Cash Flows Information of the Operating Partnership

Supplemental cash flows information as follows (in thousands):


	Nine Months Ended September 30,
	2024		2023
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $57,839 and $53,637 as of September 30, 2024 and 2023, respectively	$	86,410	$	60,528
Cash paid for amounts included in the measurement of ground lease liabilities	$	5,156	$	4,939
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	$	60,072	$	98,631
Tenant improvements funded directly by tenants	$	2,204	$	6,026
Remeasurement of ground lease liability and related right of use ground lease asset	$	4,782	$	—






NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders	$	64,844	$	64,423

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2024 and 2023.


	Nine Months Ended September 30,
	2024		2023
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	510,163	$	347,379
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	510,163	$	347,379

Cash and cash equivalents at end of period	$	625,395	$	618,794
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	625,395	$	618,794

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Sep. 30, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Organization, Ownership, and Basis of Presentation (Policies)	9 Months Ended
	Sep. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Consolidation Policy	The consolidated financial statements of the Company include the consolidated financial position and results of operations of the Company, the Operating Partnership, 303 Second LLC, 100 First LLC, Redwood LLC, and all of our wholly-owned and controlled subsidiaries. The consolidated financial statements of the Operating Partnership include the consolidated financial position and results of operations of the Operating Partnership, 303 Second LLC, 100 First LLC, Redwood LLC, and all of our wholly-owned and controlled subsidiaries. All intercompany balances and transactions have been eliminated in the consolidated financial statements.
Basis of Accounting	The accompanying interim financial statements have been prepared by management in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and in conjunction with the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures required for annual financial statements have been condensed or excluded pursuant to SEC rules and regulations. Accordingly, the interim financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, the accompanying interim financial statements reflect all adjustments of a normal and recurring nature that are considered necessary for a fair presentation of the results for the interim periods presented. However, the results of operations for the interim periods are not necessarily indicative of the results that may be expected for the year ending December 31, 2024. The interim financial statements for the Company and the Operating Partnership should be read in conjunction with the audited consolidated financial statements and notes thereto included in our annual report on Form 10-K for the year ended December 31, 2023.
Variable Interest Entities	Variable Interest Entities The Operating Partnership is a variable interest entity (“VIE”) that is consolidated by the Company as the primary beneficiary, as the Operating Partnership is a limited partnership in which the common limited partners do not have substantive kick-out or participating rights.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements In November 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2023-07 “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures.” This ASU is effective for fiscal years beginning after December 15, 2023 and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. The Company is currently evaluating the impact of adopting this ASU on our consolidated financial statements and disclosures. In December 2023, the FASB issued ASU 2023-09 “Income Taxes (Topic 740): Improvements to Tax Disclosures.” The ASU is effective for annual periods beginning after December 15, 2024. The Company does not currently anticipate that the guidance will have a material impact on our consolidated financial statements or notes to our consolidated financial statements.

Organization, Ownership, and Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Real Estate Properties

Our stabilized portfolio of operating properties was comprised of the following properties at September 30, 2024:


	Number of Buildings	Rentable Square Feet	Number of Tenants	Percentage Occupied (1)
Stabilized Office Properties (2)	123	17,140,465	424	84.3	%

________________________

(1)Represents economic occupancy.

(2)Includes stabilized life science and retail space.


	Number of Projects	Number of Units	2024 Average Occupancy
Stabilized Residential Properties	3	1,001	92.6	%

As of September 30, 2024, the following properties were excluded from our stabilized portfolio:


	Number of Properties/Projects	Estimated Rentable Square Feet (1)


In-process redevelopment projects - tenant improvement	2	100,000
In-process development projects - under construction	1	875,000

________________________

(1)Estimated rentable square feet upon completion.

Acquisitions (Tables)

9 Months Ended

Sep. 30, 2024

Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]

Schedule of Operating Property Acquisitions

During the nine months ended September 30, 2024, we acquired the operating property listed below from an unrelated third party:

Property

Date of Acquisition

Number of Buildings

Rentable Square Feet

Purchase Price (in millions) (1)

12707 & 12777 High Bluff Drive (Junction at Del Mar)

September 27, 2024

103,731

35.0

________________________

(1)Excludes acquisition-related costs.

Schedule of Estimated Fair Values of Assets Acquired and Liabilities Assumed

The following table summarizes the estimated relative fair values of the assets acquired and liabilities assumed as of the date of acquisition, excluding acquisition-related costs:


	Total 2024 Operating Property Acquisitions (1)(2)
Assets
Land and improvements	$	6,000
Buildings and improvements (3)	15,703
Deferred leasing costs and acquisition-related intangible assets (4)	13,534
Prepaid expenses and other assets, net	30
Total assets acquired	$	35,267
Liabilities
Acquisition-related intangible liabilities (5)	$	267
Total liabilities assumed	267
Net assets and liabilities acquired	$	35,000

________________________

(2)Excludes acquisition related costs of $0.2 million.

(3)Represents buildings, building improvements, and tenant improvements.

(5)Represents below-market leases (approximately $0.3 million with a weighted average amortization period of 4.9 years).

Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2024

Investments, Debt and Equity Securities [Abstract]

Schedule of Marketable Securities

Marketable securities consisted of the following at September 30, 2024 and December 31, 2023:


	September 30, 2024		December 31, 2023
	(in thousands)
Deferred compensation plan assets	$	27,144	$	28,089
Certificates of deposit (1)	—		256,581
Total marketable securities	$	27,144	$	284,670

________________________

(1)The certificates of deposit had an original issuance term greater than three months but less than 12 months.

Prepaid Expenses and Other Assets, Net (Tables)

9 Months Ended

Sep. 30, 2024

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of Prepaid Expenses and Other Assets, Net

Prepaid expenses and other assets, net consisted of the following at September 30, 2024 and December 31, 2023:


	September 30, 2024		December 31, 2023
	(in thousands)
Furniture, fixtures and other long-lived assets, net	$	38,934	$	37,073
Prepaid expenses and deferred financing costs, net	28,346		10,532
Other assets	6,215		5,464
Total prepaid expenses and other assets, net	$	73,495	$	53,069

Secured and Unsecured Debt of the Operating Partnership (Tables) - Kilroy Realty L.P.

9 Months Ended

Sep. 30, 2024

Debt Instrument [Line Items]

Schedule of Unsecured Revolving Credit Facility

The following table summarizes the balance and terms of our unsecured revolving credit facility as of September 30, 2024 and December 31, 2023:


	Unsecured Revolving Credit Facility
	September 30, 2024			December 31, 2023
	(in thousands)
Outstanding borrowings	$	—		$	—
Remaining borrowing capacity (1)	1,100,000			1,100,000
Total borrowing capacity (1)	$	1,100,000		$	1,100,000
Interest rate (2)	5.96		%	6.38		%
Facility fee-annual rate (3)	0.200%
Maturity date (4)	July 31, 2028			July 31, 2025

________________________

(4)The maturity date may be extended by two six-month periods, at the Operating Partnership’s election.

The following table summarizes the balance and terms of our 2024 Term Loan Facility as of September 30, 2024:


	2024 Term Loan Facility
	September 30, 2024
	(in thousands)
Outstanding borrowings	$	200,000
Remaining borrowing capacity	—
Total borrowing capacity (1)	$	200,000
Interest rate (2)	6.16		%
Maturity date (3)	October 3, 2025

____________________

(3)The maturity date may be extended by two 12-month periods, at the Operating Partnership’s election.

The following table summarizes the balance and terms of our 2022 Term Loan Facility as of December 31, 2023:


	2022 Term Loan Facility
	December 31, 2023
	(in thousands)
Outstanding borrowings	$	520,000
Remaining borrowing capacity	—
Total borrowing capacity	$	520,000
Interest rate (1)	6.41		%
Undrawn facility fee-annual rate (2)	0.200%
Maturity date	October 3, 2024

____________________

(1)Our 2022 Term Loan Facility interest rate was calculated using Adjusted SOFR plus a margin of 0.950% based on our credit rating as of December 31, 2023.

Schedule of Debt Maturities

The following table summarizes the stated debt maturities and scheduled amortization payments for all outstanding debt as of September 30, 2024:


Year	(in thousands)
Remaining 2024	$	405,235
2025 (1)	606,246
2026	401,317
2027	249,125
2028	400,000
2029	475,000
Thereafter	2,500,000
Total aggregate principal value	5,036,923
Less: unamortized net discounts and deferred financing costs (2)	(35,767)
Total debt, net	$	5,001,156

________________________

(1)Includes the $200.0 million outstanding as of September 30, 2024 on the 2024 Term Loan Facility, for which the Company has two 12-month extension options.

Schedule of Capitalized Interest and Loan Fees


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
	(in thousands)
Gross interest expense	$	57,235	$	49,893	$	173,191	$	139,148
Capitalized interest and deferred financing costs	(20,827)		(20,056)		(61,149)		(57,257)
Interest expense	$	36,408	$	29,837	$	112,042	$	81,891

Share-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Share-Based Payment Award, Restricted Stock Units, Valuation Assumptions

The fair value of the portion of the award subject to the Market Condition was calculated using a Monte Carlo simulation pricing model based on the assumptions in the table below, which resulted in the following grant date fair value per share.


			Fair Value Assumptions
Valuation date			February 1, 2024
Fair value per share on valuation date (1)			$36.00
Expected share price volatility			34.0%
Risk-free interest rate			3.98%

________________________

(1)For one participant, the fair value per share on the valuation date for their 2024 Performance-Based RSUs is $36.43.

Rental Income and Future Minimum Rent (Tables)

9 Months Ended

Sep. 30, 2024

Leases [Abstract]

Schedule of Rental Income

The table below sets forth the allocation of rental income between fixed and variable payments and net collectability reversals for the three and nine months ended September 30, 2024 and 2023:


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
	(in thousands)
Fixed lease payments	$	234,812	$	232,090	$	691,596	$	713,254
Variable lease payments	51,907		49,232		149,821		142,771
Net collectability reversals (1)	(768)		(641)		(4,657)		(3,931)
Total rental income	$	285,951	$	280,681	$	836,760	$	852,094

_____________________

Schedule of Future Contractual Minimum Rent Under Operating Lease

Future contractual minimum rent under operating leases, which includes amounts contractually due from leases that are on a cash basis of reporting due to creditworthiness considerations, as of September 30, 2024 for future periods is summarized as follows:


Year Ending	(in thousands)
Remaining 2024	$	204,645
2025	815,864
2026	775,705
2027	720,685
2028	678,862
2029	589,121
Thereafter	1,520,529
Total (1)	$	5,305,411

_____________________

(1)Excludes residential leases and leases with a term of one year or less.

Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2024

Commitments and Contingencies Disclosure [Abstract]

Schedule of Contractual Expiration Dates for Ground Leases

The following table summarizes our properties that are held subject to long-term noncancellable ground lease obligations as of September 30, 2024 and the respective contractual expiration dates:


Property			Contractual Expiration Date
701, 801, and 837 N. 34th Street, Seattle, WA (1)			December 2041
1701 Page Mill Road and 3150 Porter Drive, Palo Alto, CA			December 2067
Kilroy Airport Center Phases I, II, and III, Long Beach, CA (2)			July 2084
3243 S. La Cienega Boulevard, Los Angeles, CA			October 2106
200 W. 6th Street, Austin, TX			December 2112

____________________

(2) Assumes the impact of all extension options held by the Company.

Schedule of Minimum Commitment Under Ground Leases

The minimum commitment under our ground leases, as of September 30, 2024, for future periods is as follows:


Year Ending	(in thousands)
Remaining 2024	$	1,684
2025	6,772
2026	6,809
2027	6,850
2028	6,869
2029	6,869
Thereafter	367,744
Total undiscounted cash flows (1)(2)(3)(4)(5)(6)	$	403,597
Present value discount	(274,991)
Ground lease liabilities	$	128,606

________________________

(5) One of our ground lease obligations is subject to fixed 5% ground rent increases every five years, with the next increase occurring on November 1, 2027.

Fair Value Measurements and Disclosures (Tables)

9 Months Ended

Sep. 30, 2024

Fair Value Disclosures [Abstract]

Schedule of Fair Value of the Company's Deferred Compensation Plan Assets

The following table sets forth the fair value of our Deferred Compensation Plan assets as of September 30, 2024 and December 31, 2023:


	Fair Value (Level 1) (1)
	September 30, 2024		December 31, 2023
Description	(in thousands)
Deferred Compensation Plan assets (2)	$	27,144	$	28,089

________________________

(1) Based on quoted prices in active markets for identical securities.

(2) The Deferred Compensation Plan assets are held in a limited rabbi trust.

Schedule of Carrying Value and Fair Value of Other Financial Instruments

The following table sets forth the carrying value and the fair value of our other financial instruments as of September 30, 2024 and December 31, 2023:


	September 30, 2024				December 31, 2023
	Carrying Value		Fair Value (1)		Carrying Value		Fair Value (1)
	(in thousands)
Assets
Certificates of deposit (2)	$	—	$	—	$	256,581	$	256,581
Liabilities
Secured debt, net	$	599,478	$	591,319	$	603,225	$	585,826
Unsecured debt, net	$	4,401,678	$	4,143,923	$	4,325,153	$	3,927,104

________________________

(1)Fair value calculated using Level 2 inputs, which are based on model-derived valuations in which significant inputs and significant value drivers are observable in active markets.

(2)The carrying value of the certificates of deposit approximate their fair values due to their short-term maturities. See Note 3 “Marketable Securities” for additional information.

Net Income Available to Common Stockholders Per Share of the Company (Tables)

9 Months Ended

Sep. 30, 2024

Earnings Per Share [Abstract]

Schedule of Net Income Available to Common Stockholders


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
	(in thousands, except share and per share amounts)
Numerator:
Net income available to common stockholders	$	52,378	$	52,762	$	151,509	$	164,957

Allocation to participating securities (1)	(173)		(269)		(1,792)		(959)
Numerator for basic and diluted net income available to common stockholders	$	52,205	$	52,493	$	149,717	$	163,998
Denominator:
Basic weighted average vested shares outstanding	117,830,481		117,184,609		117,515,623		117,133,420
Effect of dilutive securities	413,432		310,637		439,140		277,975
Diluted weighted average vested shares and common stock equivalents outstanding	118,243,913		117,495,246		117,954,763		117,411,395
Basic earnings per share:
Net income available to common stockholders per share	$	0.44	$	0.45	$	1.27	$	1.40
Diluted earnings per share:
Net income available to common stockholders per share	$	0.44	$	0.45	$	1.27	$	1.40

________________________

(1)Participating securities include certain time-based RSUs and vested market measure-based RSUs.

Net Income Available to Common Unitholders Per Unit of the Operating Partnership (Tables)

9 Months Ended

Sep. 30, 2024

Net Income Available To Common Unitholders [Line Items]

Schedule of Net Income Available to Common Stockholders


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
	(in thousands, except share and per share amounts)
Numerator:
Net income available to common stockholders	$	52,378	$	52,762	$	151,509	$	164,957

Allocation to participating securities (1)	(173)		(269)		(1,792)		(959)
Numerator for basic and diluted net income available to common stockholders	$	52,205	$	52,493	$	149,717	$	163,998
Denominator:
Basic weighted average vested shares outstanding	117,830,481		117,184,609		117,515,623		117,133,420
Effect of dilutive securities	413,432		310,637		439,140		277,975
Diluted weighted average vested shares and common stock equivalents outstanding	118,243,913		117,495,246		117,954,763		117,411,395
Basic earnings per share:
Net income available to common stockholders per share	$	0.44	$	0.45	$	1.27	$	1.40
Diluted earnings per share:
Net income available to common stockholders per share	$	0.44	$	0.45	$	1.27	$	1.40

________________________

(1)Participating securities include certain time-based RSUs and vested market measure-based RSUs.

Kilroy Realty L.P.

Net Income Available To Common Unitholders [Line Items]

Schedule of Net Income Available to Common Stockholders


	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
	(in thousands, except unit and per unit amounts)
Numerator:
Net income available to common unitholders	$	52,887	$	53,277	$	152,978	$	166,569

Allocation to participating securities (1)	(173)		(269)		(1,792)		(959)
Numerator for basic and diluted net income available to common unitholders	$	52,714	$	53,008	$	151,186	$	165,610
Denominator:
Basic weighted average vested units outstanding	118,981,055		118,335,183		118,666,197		118,283,994
Effect of dilutive securities	413,432		310,637		439,140		277,975
Diluted weighted average vested units and common unit equivalents outstanding	119,394,487		118,645,820		119,105,337		118,561,969
Basic earnings per unit:
Net income available to common unitholders per unit	$	0.44	$	0.45	$	1.27	$	1.40
Diluted earnings per unit:
Net income available to common unitholders per unit	$	0.44	$	0.45	$	1.27	$	1.40

________________________

(1)Participating securities include certain time-based RSUs and vested market measure-based RSUs.

Supplemental Cash Flow Information of the Company (Tables)

9 Months Ended

Sep. 30, 2024

Supplemental Cash Flow Elements [Abstract]

Schedule of Supplemental Cash Flows

Supplemental cash flows information as follows (in thousands):


	Nine Months Ended September 30,
	2024		2023
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $57,839 and $53,637 as of September 30, 2024 and 2023, respectively	$	86,410	$	60,528
Cash paid for amounts included in the measurement of ground lease liabilities	$	5,156	$	4,939
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	$	60,072	$	98,631
Tenant improvements funded directly by tenants	$	2,204	$	6,026
Remeasurement of ground lease liability and related right of use ground lease asset	$	4,782	$	—






NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders	$	64,844	$	64,423

Schedule of Reconciliation of Cash and Cash Equivalents and Restricted Cash

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2024 and 2023.


	Nine Months Ended September 30,
	2024		2023
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	510,163	$	347,379
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	510,163	$	347,379

Cash and cash equivalents at end of period	$	625,395	$	618,794
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	625,395	$	618,794

Schedule of Reconciliation of Cash and Cash Equivalents and Restricted Cash

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2024 and 2023.


	Nine Months Ended September 30,
	2024		2023
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	510,163	$	347,379
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	510,163	$	347,379

Cash and cash equivalents at end of period	$	625,395	$	618,794
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	625,395	$	618,794

Supplemental Cash Flow Information of the Operating Partnership (Tables)

9 Months Ended

Sep. 30, 2024

Other Significant Noncash Transactions [Line Items]

Schedule of Supplemental Cash Flows

Supplemental cash flows information as follows (in thousands):


	Nine Months Ended September 30,
	2024		2023
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $57,839 and $53,637 as of September 30, 2024 and 2023, respectively	$	86,410	$	60,528
Cash paid for amounts included in the measurement of ground lease liabilities	$	5,156	$	4,939
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	$	60,072	$	98,631
Tenant improvements funded directly by tenants	$	2,204	$	6,026
Remeasurement of ground lease liability and related right of use ground lease asset	$	4,782	$	—






NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders	$	64,844	$	64,423

Schedule of Reconciliation of Cash and Cash Equivalents and Restricted Cash

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2024 and 2023.


	Nine Months Ended September 30,
	2024		2023
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	510,163	$	347,379
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	510,163	$	347,379

Cash and cash equivalents at end of period	$	625,395	$	618,794
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	625,395	$	618,794

Schedule of Reconciliation of Cash and Cash Equivalents and Restricted Cash

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2024 and 2023.


	Nine Months Ended September 30,
	2024		2023
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	510,163	$	347,379
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	510,163	$	347,379

Cash and cash equivalents at end of period	$	625,395	$	618,794
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	625,395	$	618,794

Kilroy Realty L.P.

Other Significant Noncash Transactions [Line Items]

Schedule of Supplemental Cash Flows

Supplemental cash flows information as follows (in thousands):


	Nine Months Ended September 30,
	2024		2023
SUPPLEMENTAL CASH FLOWS INFORMATION:
Cash paid for interest, net of capitalized interest of $57,839 and $53,637 as of September 30, 2024 and 2023, respectively	$	86,410	$	60,528
Cash paid for amounts included in the measurement of ground lease liabilities	$	5,156	$	4,939
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	$	60,072	$	98,631
Tenant improvements funded directly by tenants	$	2,204	$	6,026
Remeasurement of ground lease liability and related right of use ground lease asset	$	4,782	$	—






NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders	$	64,844	$	64,423

Schedule of Reconciliation of Cash and Cash Equivalents and Restricted Cash

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2024 and 2023.


	Nine Months Ended September 30,
	2024		2023
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	510,163	$	347,379
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	510,163	$	347,379

Cash and cash equivalents at end of period	$	625,395	$	618,794
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	625,395	$	618,794

Schedule of Reconciliation of Cash and Cash Equivalents and Restricted Cash

The following is a reconciliation of our cash and cash equivalents and restricted cash at the beginning and end of the nine months ended September 30, 2024 and 2023.


	Nine Months Ended September 30,
	2024		2023
	(in thousands)
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents at beginning of period	$	510,163	$	347,379
Restricted cash at beginning of period	—		—
Cash and cash equivalents and restricted cash at beginning of period	$	510,163	$	347,379

Cash and cash equivalents at end of period	$	625,395	$	618,794
Restricted cash at end of period	—		—
Cash and cash equivalents and restricted cash at end of period	$	625,395	$	618,794

Organization, Ownership, and Basis of Presentation - Operating Properties (Details)	9 Months Ended
	Sep. 30, 2024 ft² development_project building tenant property
Stabilized Office Properties
Real Estate Properties [Line Items]
Number of Buildings \| building	123
Rentable/Estimated Rentable Square Feet	17,140,465
Number of Tenants \| tenant	424
Percentage Occupied	84.30%
Stabilized Residential Properties
Real Estate Properties [Line Items]
Number of Properties/Projects \| property	3
Number of Units \| property	1,001
2024 Average Occupancy	92.60%
In-process redevelopment projects - tenant improvement
Real Estate Properties [Line Items]
Rentable/Estimated Rentable Square Feet	100,000
Number of Properties/Projects \| development_project	2
In-process development projects - under construction
Real Estate Properties [Line Items]
Rentable/Estimated Rentable Square Feet	875,000
Number of Properties/Projects \| development_project	1

Organization, Ownership, and Basis of Presentation - Additional Information (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2024 USD ($) a property_partnership property variableInterestEntity development_site	Dec. 31, 2023 USD ($) variableInterestEntity
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Lease-up properties occupancy percentage	95.00%
Lease-up properties, period from the date of cessation of major base building construction activities	1 year
Number of properties held for sale \| property	0
Assets	$ 11,380,634	$ 11,401,045
Liabilities	5,772,094	5,741,352
Noncontrolling interest in VIE	$ 175,761	$ 178,257
Variable Interest Entity, Primary Beneficiary
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of VIEs \| variableInterestEntity	3	2
Assets	$ 443,000	$ 416,700
Liabilities	20,800	23,600
Variable Interest Entity, Primary Beneficiary \| Real Estate Investment
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Assets	$ 361,600	350,000
San Francisco, California
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of properties \| property	1
101 First LLC and 303 Second LLC
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Company owned general partnership interest	56.00%
101 First LLC and 303 Second LLC \| Variable Interest Entity, Primary Beneficiary
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Noncontrolling interest in VIE	$ 171,100	$ 173,700
Redwood LLC
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Company owned general partnership interest	93.00%
Redwood LLC \| Redwood City, California
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of properties \| property	2
Operating Partnership
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Ownership interest (percent)	99.00%	99.00%
Operating Partnership \| Non-Affiliated Investors and Former Executive Officer and Director
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Ownership interest (percent)	1.00%	1.00%
Future Development Site
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of future development sites \| development_site	8
Area of undeveloped land \| a	64
Stabilized Office Properties \| Washington
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of properties \| property	10
Stabilized Office Properties \| Texas
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of properties \| property	1
Future Development Project \| Washington
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of properties \| development_site	1
Future Development Project \| Texas
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of properties \| development_site	1
Properties And Development Projects
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Property ownership percentage	100.00%
Office Properties Owned By Consolidated Property Partnerships
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of properties \| property	4
Consolidated Property Partnerships
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of property partnerships \| property_partnership	3
Consolidated Property Partnerships Owning Office Properties Through REITs \| 101 First LLC and 303 Second LLC
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of property partnerships \| property_partnership	2

Acquisitions - Operating Property Acquisitions (Details) $ in Thousands	Sep. 27, 2024 USD ($) ft² building
Schedule of Asset Acquisitions, by Acquisition [Line Items]
Acquisition related costs	$ 200
Deferred leasing costs and acquisition-related intangible assets	13,534
Below market leases acquired	$ 300
Weighted average amortization of below market leases (in years)	4 years 10 months 24 days
Leasing Commissions
Schedule of Asset Acquisitions, by Acquisition [Line Items]
Deferred leasing costs and acquisition-related intangible assets	$ 2,000
Weighted average amortization period (in years)	4 years 10 months 24 days
Above Market Leases
Schedule of Asset Acquisitions, by Acquisition [Line Items]
Deferred leasing costs and acquisition-related intangible assets	$ 1,000
Weighted average amortization period (in years)	4 years 7 months 6 days
In-Place Leases
Schedule of Asset Acquisitions, by Acquisition [Line Items]
Deferred leasing costs and acquisition-related intangible assets	$ 10,500
Weighted average amortization period (in years)	4 years 8 months 12 days
12707 & 12777 High Bluff Drive (Junction at Del Mar)
Schedule of Asset Acquisitions, by Acquisition [Line Items]
Number of Buildings \| building	2
Rentable Square Feet \| ft²	103,731
Purchase price	$ 35,000

Acquisitions - Assets Acquired and Liabilities Assumed (Details) $ in Thousands	Sep. 27, 2024 USD ($)
Assets
Land and improvements	$ 6,000
Buildings and improvements	15,703
Deferred leasing costs and acquisition-related intangible assets	13,534
Prepaid expenses and other assets, net	30
Total assets acquired	35,267
Liabilities
Acquisition-related intangible liabilities	267
Total liabilities assumed	267
Net assets and liabilities acquired	$ 35,000

Marketable Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Deferred compensation plan assets	$ 27,144	$ 28,089
Certificates of deposit	0	256,581
Total marketable securities	$ 27,144	$ 284,670

Prepaid Expenses and Other Assets, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Furniture, fixtures and other long-lived assets, net	$ 38,934	$ 37,073
Prepaid expenses and deferred financing costs, net	28,346	10,532
Other assets	6,215	5,464
Total prepaid expenses and other assets, net	$ 73,495	$ 53,069

Secured and Unsecured Debt of the Operating Partnership - Additional Information (Details)	1 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) debt_covenant	Mar. 31, 2024 USD ($)	Sep. 30, 2024 USD ($) debt_covenant	Sep. 30, 2023 USD ($)	Jan. 31, 2024 USD ($)
Debt Instrument [Line Items]
Repayments of unsecured debt (Note 5)			$ 320,000,000	$ 0
Kilroy Realty L.P.
Debt Instrument [Line Items]
Long-term debt	$ 5,036,923,000		5,036,923,000
Repayments of unsecured debt (Note 5)			$ 320,000,000	$ 0
Number of noncompliant debt covenants that could require immediate repayment of full principal balance of associated debt \| debt_covenant	1		1
6.250% Unsecured Senior Notes Due 2036 \| Unsecured debt, net \| Kilroy Realty L.P.
Debt Instrument [Line Items]
Long-term debt					$ 400,000,000.0
Initial issuance discount					$ 4,500,000
Stated interest rate on debt (percent)					6.25%
Unsecured Term Loan Facility \| Revolving credit facility \| Kilroy Realty L.P.
Debt Instrument [Line Items]
Borrowing facility, maximum borrowing capacity		$ 1,100,000,000
Unsecured Term Loan Facility \| Term Loan Facility \| Kilroy Realty L.P.
Debt Instrument [Line Items]
Borrowing facility, maximum borrowing capacity		520,000,000
Repayments of unsecured debt (Note 5)	$ 120,000,000	200,000,000
Unsecured New Term Loan Facility \| Term Loan Facility \| Kilroy Realty L.P.
Debt Instrument [Line Items]
Unsecured senior note		200,000,000
Borrowing facility, remaining borrowing capacity		$ 320,000,000
Borrowing facility, maturity date extension period		12 months

Secured and Unsecured Debt of the Operating Partnership - Unsecured Senior Notes, Unsecured Revolving Credit Facility and Term Loan Facility (Details) - Kilroy Realty L.P.	9 Months Ended	12 Months Ended
	Sep. 30, 2024 USD ($) extension_option	Dec. 31, 2023 USD ($) extension_option
Revolving Credit Facility and Term Loan Facility \| Adjusted SOFR \| Unsecured Revolving Credit Facility
Terms of the Borrowing Facilities
Variable rate (percent)	0.10%	0.10%
Revolving Credit Facility \| Unsecured Revolving Credit Facility
Terms of the Borrowing Facilities
Outstanding borrowings	$ 0	$ 0
Remaining borrowing capacity	1,100,000,000	1,100,000,000
Total borrowing capacity	$ 1,100,000,000	$ 1,100,000,000
Interest rate (percent)	5.96%	6.38%
Facility fee-annual rate (percent)	0.20%	0.20%
Outstanding letters of credit	$ 5,200,000	$ 5,200,000
Contingent additional borrowings	$ 500,000,000.0	$ 500,000,000.0
Reduction interest rate	0.01%	0.01%
Unamortized deferred financing costs	$ 13,600,000	$ 3,200,000
Number of extension options \| extension_option	2	2
Extension period (in months)	6 months	6 months
Revolving Credit Facility \| SOFR \| Unsecured Revolving Credit Facility
Terms of the Borrowing Facilities
Variable rate (percent)	0.90%	0.90%
Term Loan Facility \| 2022 Term Loan Facility
Terms of the Borrowing Facilities
Outstanding borrowings		$ 520,000,000
Remaining borrowing capacity		0
Total borrowing capacity		$ 520,000,000
Interest rate (percent)		6.41%
Facility fee-annual rate (percent)		0.20%
Unamortized deferred financing costs		$ 2,300,000
Term Loan Facility \| SOFR \| 2024 Term Loan Facility
Terms of the Borrowing Facilities
Variable rate (percent)	0.95%
Term Loan Facility \| SOFR \| 2022 Term Loan Facility
Terms of the Borrowing Facilities
Variable rate (percent)	0.95%	0.95%
Unsecured debt, net \| 2024 Term Loan Facility
Terms of the Borrowing Facilities
Number of extension options \| extension_option	2
Extension period (in months)	12 months
Line of Credit \| 2024 Term Loan Facility
Terms of the Borrowing Facilities
Outstanding borrowings	$ 200,000,000
Remaining borrowing capacity	0
Total borrowing capacity	$ 200,000,000
Interest rate (percent)	6.16%
Contingent additional borrowings	$ 130,000,000.0
Unamortized deferred financing costs	$ 1,600,000

Secured and Unsecured Debt of the Operating Partnership - Debt Maturities (Details) - Kilroy Realty L.P. $ in Thousands	9 Months Ended
	Sep. 30, 2024 USD ($) extension_option
Stated debt maturities and scheduled amortization payments
Remaining 2024	$ 405,235
2025	606,246
2026	401,317
2027	249,125
2028	400,000
2029	475,000
Thereafter	2,500,000
Total aggregate principal value	5,036,923
Less: unamortized net discounts and deferred financing costs	(35,767)
Total debt, net	5,001,156
Unsecured Debt \| 2024 Term Loan Facility
Stated debt maturities and scheduled amortization payments
Total debt, net	$ 200,000
Number of extension options \| extension_option	2
Extension period (in months)	12 months
Unsecured Senior Notes
Stated debt maturities and scheduled amortization payments
Unamortized debt issuance expense	$ 27,000
Senior Notes
Stated debt maturities and scheduled amortization payments
Debt issuance discount	$ 8,800

Secured and Unsecured Debt of the Operating Partnership - Capitalized Interest and Loan Fees (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Capitalized Interest and Loan Fees [Line Items]
Interest expense	$ 36,408	$ 29,837	$ 112,042	$ 81,891
Kilroy Realty L.P.
Capitalized Interest and Loan Fees [Line Items]
Gross interest expense	57,235	49,893	173,191	139,148
Capitalized interest and deferred financing costs	(20,827)	(20,056)	(61,149)	(57,257)
Interest expense	$ 36,408	$ 29,837	$ 112,042	$ 81,891

Stockholders' Equity of the Company (Details) - USD ($)	9 Months Ended
Stockholders' Equity of the Company (Details) - USD ($)	Sep. 30, 2024	Mar. 31, 2024	Feb. 29, 2024
2024 At-The-Market Program
Class of Stock [Line Items]
At the market stock offering aggregate gross sales price of common stock		$ 500,000,000.0
Share Repurchase Program
Class of Stock [Line Items]
Aggregate gross purchase price			$ 500,000,000
Stock repurchased during period (in shares)	0

Noncontrolling Interests on the Company's Consolidated Financial Statements (Details) $ / shares in Units, $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2024 USD ($) trading_day $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares
Noncontrolling Interest [Line Items]
Common stock, par value (in dollars per share) \| $ / shares	$ 0.01	$ 0.01
Number of trading days \| trading_day	10
Aggregate value upon redemption of outstanding noncontrolling common units \| $	$ 45.4	$ 47.0
Non-Affiliated Investors and Former Executive Officer and Director \| Common Units
Noncontrolling Interest [Line Items]
Common units outstanding held by common limited partners (in shares)	1,150,574	1,150,574
Kilroy Realty L.P. \| Common Units
Noncontrolling Interest [Line Items]
Conversion ratio	1
Kilroy Realty L.P. \| Common Units
Noncontrolling Interest [Line Items]
Common units outstanding held by common limited partners (in shares)	1,150,574	1,150,574
Operating Partnership
Noncontrolling Interest [Line Items]
Ownership interest (percent)	99.00%	99.00%
Operating Partnership \| Non-Affiliated Investors and Former Executive Officer and Director
Noncontrolling Interest [Line Items]
Ownership interest (percent)	1.00%	1.00%

Share-Based Compensation - Additional Information (Details) $ / shares in Units, $ in Millions				1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 19, 2024 shares	Feb. 01, 2024 USD ($) installment $ / shares shares	Jan. 22, 2024 shares	Feb. 29, 2024 shares	Sep. 30, 2024 USD ($) compensation_plan shares	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) compensation_plan shares	Sep. 30, 2023 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of share-based incentive compensation plans \| compensation_plan					1		1
Effective registration shares (in shares)					12,600,000		12,600,000
Number of shares available for grant (in shares)					2,600,000		2,600,000
Share-based compensation expense \| $					$ 6.7	$ 12.3	$ 18.4	$ 33.4
Share-based compensation expense capitalized \| $					2.1	1.7	5.1	5.0
Share-based compensation not yet recognized \| $					$ 30.3		$ 30.3
Share-based compensation not yet recognized period of recognition							1 year 8 months 12 days
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted in period (in shares)				501,594
Performance-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period							3 years
Number of shares granted in period (in shares)				265,205
Vesting, achievement of pre-set FFO per share goals, percentage of RSUs					100.00%		100.00%
Vesting, Average debt to EBIDTA ratio, percentage of RSUs					50.00%		50.00%
Vesting, Market measure, percentage of RSUs					50.00%		50.00%
Time-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted in period (in shares)				236,389
Number of installments \| installment		3
Right to receive number of shares (in shares)		1
2024 Performance-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				3 years
Vesting, achievement of pre-set FFO per share goals, percentage of RSUs				100.00%
Vesting, Average debt to EBIDTA ratio, percentage of RSUs				50.00%
Vesting, Market measure, percentage of RSUs				50.00%
Share-based compensation expense \| $							$ 2.5
Performance-based RSU, achievement target							150.00%
Number of shares issuable per RSU				1
Publicly-traded options, term		6 months
Fair value RSUs granted \| $		$ 9.5
2024 Performance Based RSUs, Debt to EBITDA Ratio Performance Condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance-based RSU, achievement target							100.00%
Time-Based Restricted Stock Units (RSUs), Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value RSUs granted \| $		$ 8.3
Share price (in dollars per share) \| $ / shares		$ 35.20
2023 Performance-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance-based RSU, achievement target, all other participants, percent							150.00%
2022 Performance-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance-based RSU, achievement target, all other participants, percent							150.00%
2023 Performance Based RSUs, Debt to EBITDA Ratio Performance Condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance-based RSU, achievement target, all other participants, percent					150.00%		150.00%
2022 Performance Based RSUs, Debt to EBITDA Ratio Performance Condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance-based RSU, achievement target, all other participants, percent					150.00%		150.00%
Chief Executive Officer \| 2024 Performance-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance-based RSU, achievement target							175.00%
Chief Executive Officer \| Kilroy Realty 2006 Incentive Award Plan \| Time-Based Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			1 year
Number of shares granted in period (in shares)			101,627
Executive Vice President and Chief Financial Officer \| Jeffrey Kuehling 2006 Incentive Award Plan \| Time-Based Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year 4 months 24 days
Number of shares granted in period (in shares)	20,373
Former CEO and Former President
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accelerated share-based compensation costs \| $						$ 8.0		$ 21.2

Share-Based Compensation - Fair Value Assumptions (Details) - 2024 Performance-Based RSUs	Feb. 01, 2024 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value per share on valuation date (in dollars per share)	$ 36.00
Expected share price volatility	34.00%
Risk-free interest rate	3.98%
One Participant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value per share on valuation date (in dollars per share)	$ 36.43

Rental Income and Future Minimum Rent - Rental income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Leases [Abstract]
Fixed lease payments	$ 234,812	$ 232,090	$ 691,596	$ 713,254
Variable lease payments	51,907	49,232	149,821	142,771
Net collectability reversals	(768)	(641)	(4,657)	(3,931)
Total rental income	$ 285,951	$ 280,681	$ 836,760	$ 852,094

Rental Income and Future Minimum Rent - Future Contractual Minimum Rent (Details) $ in Thousands	Sep. 30, 2024 USD ($)
Future contractual minimum rent under operating lease
Remaining 2024	$ 204,645
2025	815,864
2026	775,705
2027	720,685
2028	678,862
2029	589,121
Thereafter	1,520,529
Total	$ 5,305,411

Commitments and Contingencies - Additional Information (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) groundLease	Sep. 30, 2023 USD ($)
Other Commitments [Line Items]
Commitments for contracts and executed leases directly related to operating and development properties	$ 196.1		$ 196.1
Weighted average discount rate, ground leases	4.67%		4.67%
Weighted average remaining lease term	63 years		63 years
Variable lease, cost	$ 1.2	$ 1.0	$ 3.5	$ 3.0
Ten year ground lease extension option
Other Commitments [Line Items]
Number of extension options \| groundLease			3
Ground lease extension option term			10 years
Forty-five year ground lease extension option
Other Commitments [Line Items]
Number of extension options \| groundLease			1
Ground lease extension option term			45 years
Environmental Matters
Other Commitments [Line Items]
Accrued environmental remediation liabilities	$ 72.1		$ 72.1

Commitments and Contingencies - Minimum Commitment Under Ground Leases (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Minimum commitment under our ground leases
Remaining 2024	$ 1,684
2025	6,772
2026	6,809
2027	6,850
2028	6,869
2029	6,869
Thereafter	367,744
Total undiscounted cash flows	403,597
Present value discount	(274,991)
Ground lease liabilities	$ 128,606	$ 124,353
Period after which ground lease rentals are adjusted based on fair market value and the Consumer Price Index	5 years
Duration of ground lease increase	10 years
Average annual percentage rent for previous ten years (percent)	60.00%
Previous period included in average annual rent percentage for ten-year increases	3 years
Ground lease fixed ground rent increase, percent	5.00%
Percentage rent increase every year	2.00%
Ground lease reset period	10 years
Remaining ground lease obligation period	10 years

Fair Value Measurements and Disclosures - Assets and Liabilities Reported at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Fair value, Measurements, Recurring \| Fair Value (Level 1)
Assets and Liabilities Reported at Fair Value
Deferred compensation plan assets	$ 27,144	$ 28,089

Fair Value Measurements and Disclosures - Financial Instruments Disclosed at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Carrying Value \| Certificates of deposit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, fair value	$ 0	$ 256,581
Carrying Value \| Secured debt, net
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt, net	599,478	603,225
Carrying Value \| Unsecured debt, net
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt, net	4,401,678	4,325,153
Fair Value \| Certificates of deposit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments, fair value	0	256,581
Fair Value \| Secured debt, net \| Fair value (level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt, net	591,319	585,826
Fair Value \| Unsecured debt, net \| Fair value (level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of debt, net	$ 4,143,923	$ 3,927,104

Net Income Available to Common Stockholders Per Share of the Company (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Numerator:
Net income available to common stockholders	$ 52,378	$ 52,762	$ 151,509	$ 164,957
Allocation to participating securities	(173)	(269)	(1,792)	(959)
Numerator for basic and diluted net income available to common stockholders	$ 52,205	$ 52,493	$ 149,717	$ 163,998
Denominator:
Basic weighted average vested shares/ unit outstanding (in shares)	117,830,481	117,184,609	117,515,623	117,133,420
Effect of dilutive securities (in shares)	413,432	310,637	439,140	277,975
Diluted weighted average vested shares and common stock/ unit equivalents outstanding (in shares)	118,243,913	117,495,246	117,954,763	117,411,395
Basic earnings per share:
Net income available to common stockholders per share (in dollars per share)	$ 0.44	$ 0.45	$ 1.27	$ 1.40
Diluted earnings per share:
Net income available to common stockholders per share (in dollars per share)	$ 0.44	$ 0.45	$ 1.27	$ 1.40

Net Income Available to Common Unitholders Per Unit of the Operating Partnership (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Numerator:
Net income available to common unitholders	$ 52,378	$ 52,762	$ 151,509	$ 164,957
Allocation to participating securities	(173)	(269)	(1,792)	(959)
Numerator for basic and diluted net income available to common stockholders	$ 52,205	$ 52,493	$ 149,717	$ 163,998
Denominator:
Basic weighted average vested shares/ unit outstanding (in shares)	117,830,481	117,184,609	117,515,623	117,133,420
Effect of dilutive securities (in shares)	413,432	310,637	439,140	277,975
Diluted weighted average vested shares and common stock/ unit equivalents outstanding (in shares)	118,243,913	117,495,246	117,954,763	117,411,395
Basic earnings per unit:
Net income available to common unitholders per unit – basic (in dollars per share)	$ 0.44	$ 0.45	$ 1.27	$ 1.40
Diluted earnings per unit:
Net income available to common unitholders per unit – diluted (in dollars per share)	$ 0.44	$ 0.45	$ 1.27	$ 1.40
Kilroy Realty L.P.
Numerator:
Net income available to common unitholders	$ 52,887	$ 53,277	$ 152,978	$ 166,569
Allocation to participating securities	(173)	(269)	(1,792)	(959)
Numerator for basic and diluted net income available to common stockholders	$ 52,714	$ 53,008	$ 151,186	$ 165,610
Denominator:
Basic weighted average vested shares/ unit outstanding (in shares)	118,981,055	118,335,183	118,666,197	118,283,994
Effect of dilutive securities (in shares)	413,432	310,637	439,140	277,975
Diluted weighted average vested shares and common stock/ unit equivalents outstanding (in shares)	119,394,487	118,645,820	119,105,337	118,561,969
Basic earnings per unit:
Net income available to common unitholders per unit – basic (in dollars per share)	$ 0.44	$ 0.45	$ 1.27	$ 1.40
Diluted earnings per unit:
Net income available to common unitholders per unit – diluted (in dollars per share)	$ 0.44	$ 0.45	$ 1.27	$ 1.40

Supplemental Cash Flow Information of the Company - Supplemental Cash Flow (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
SUPPLEMENTAL CASH FLOWS INFORMATION:
Capitalized interest	$ 57,839	$ 53,637
Cash paid for interest, net of capitalized interest of $57,839 and $53,637 as of September 30, 2024 and 2023, respectively	86,410	60,528
Cash paid for amounts included in the measurement of ground lease liabilities	5,156	4,939
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	60,072	98,631
Tenant improvements funded directly by tenants	2,204	6,026
Remeasurement of ground lease liability and related right of use ground lease asset	4,782	0
NON-CASH FINANCING TRANSACTIONS:
Accrual of dividends and distributions payable to common stockholders and common unitholders	$ 64,844	$ 64,423

Supplemental Cash Flow Information of the Company - Cash and Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Dec. 31, 2022
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents	$ 625,395	$ 510,163	$ 618,794	$ 347,379
Restricted cash	0	0	0	0
Cash and cash equivalents and restricted cash	$ 625,395	$ 510,163	$ 618,794	$ 347,379

Supplemental Cash Flow Information of the Operating Partnership - Supplemental Cash Flow (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
SUPPLEMENTAL CASH FLOWS INFORMATION:
Capitalized interest	$ 57,839	$ 53,637
Cash paid for interest, net of capitalized interest of $57,839 and $53,637 as of September 30, 2024 and 2023, respectively	86,410	60,528
Cash paid for amounts included in the measurement of ground lease liabilities	5,156	4,939
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	60,072	98,631
Tenant improvements funded directly by tenants	2,204	6,026
Remeasurement of ground lease liability and related right of use ground lease asset	4,782	0
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders	64,844	64,423
Kilroy Realty L.P.
SUPPLEMENTAL CASH FLOWS INFORMATION:
Capitalized interest	57,839	53,637
Cash paid for interest, net of capitalized interest of $57,839 and $53,637 as of September 30, 2024 and 2023, respectively	86,410	60,528
Cash paid for amounts included in the measurement of ground lease liabilities	5,156	4,939
NON-CASH INVESTING TRANSACTIONS:
Accrual for expenditures for operating properties and development and redevelopment properties	60,072	98,631
Tenant improvements funded directly by tenants	2,204	6,026
Remeasurement of ground lease liability and related right of use ground lease asset	4,782	0
NON-CASH FINANCING TRANSACTIONS:
Accrual of distributions payable to common unitholders	$ 64,844	$ 64,423

Supplemental Cash Flow Information of the Operating Partnership - Reconciliation of Cash and Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Dec. 31, 2022
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents	$ 625,395	$ 510,163	$ 618,794	$ 347,379
Restricted cash	0	0	0	0
Cash and cash equivalents and restricted cash	625,395	510,163	618,794	347,379
Kilroy Realty L.P.
RECONCILIATION OF CASH AND CASH EQUIVALENTS AND RESTRICTED CASH:
Cash and cash equivalents	625,395	510,163	618,794	347,379
Restricted cash	0	0	0	0
Cash and cash equivalents and restricted cash	$ 625,395	$ 510,163	$ 618,794	$ 347,379

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