KILROY REALTY CORP

Overview

Kilroy Realty Corp. is a real estate investment trust focused on owning, operating, leasing, redeveloping and developing office and life-science properties. Its portfolio is concentrated in the San Francisco Bay Area, Los Angeles, Seattle, San Diego and Austin.[1][2]

The company describes its work as creating premium, adaptable workspaces and supporting the communities where it operates.[3][4] As of June 30, 2026, it reported 123 stabilized properties totaling approximately 17.1 million rentable square feet.[1] Its 2025 operating revenues were approximately $1.100 billion.[5] [1]+6

Products & services

Kilroy Realty’s products are rentable office, life-science and mixed-use spaces. As of June 30, 2026, its stabilized portfolio included 123 office and life-science properties totaling approximately 17.1 million rentable square feet; the figure excludes potential development sites.[1] Its 2025 year-end portfolio description also covers mixed-use properties and 1,001 residential units.[6] Mixed-use developments may combine office, residential, retail and other commercial space.[7]

The company offers several office lease formats: full-service gross, modified gross, triple net and modified net. At year-end 2025, these accounted for 22%, 26%, 46% and 6%, respectively, of annualized office base rental revenue.[8] Lease-related revenue also includes base rent, recoveries of common-area maintenance, taxes and other costs, parking, and other items.[9] Kilroy’s property amenities include conference and meeting spaces, fitness and wellness facilities, lounges, outdoor areas, restaurants and roof decks; availability varies by property.[10]

At selected properties, Kilroy markets lab and office space with flexible floor plates and robust infrastructure, and campuses offering laboratory and research-and-development space.[11][12] The company does not provide a general portfolio-wide engineering specification for these spaces in the cited materials. Its 2025 annualized base-rent mix by tenant industry was 51% technology, 19% life science and health care, 9% professional/business/other services, 7% finance/insurance/real estate, 6% media and 8% other industries; these figures describe tenant industries, not product-type revenue.[13] [1]+8

Geographic presence

Kilroy Realty Corp’s operating footprint comprises the San Francisco Bay Area, Los Angeles, Seattle, San Diego, and Austin. At June 30, 2026, its stabilized portfolio included 33 buildings and 6.44 million rentable square feet in the Bay Area; 52 buildings and 4.25 million square feet in Los Angeles; 10 buildings and 3.00 million square feet in Seattle; 27 buildings and 2.69 million square feet in San Diego; and one building and 0.76 million square feet in Austin. Occupancy ranged from 72.5% in Los Angeles to 84.1% in San Diego; the total stabilized portfolio was 123 buildings and 17.13 million square feet, 77.0% occupied.[2]

The company’s property footprint is concentrated in California, with additional properties in the Seattle and Austin metropolitan areas; its California holdings are concentrated in Los Angeles, San Diego County, and the San Francisco Bay Area.[14] The company lists its headquarters in Los Angeles and regional offices in San Francisco, San Diego, Bellevue, Washington, and Austin.[15] It reports one operating segment, and the reviewed filings do not provide regional revenue or NOI percentages.[16] [2]+3

Business segments

Kilroy Realty reports one operating segment and one reportable segment, conducting its business on a consolidated basis. Accordingly, that single reported segment represents 100% of consolidated operations; the company does not report separate segment contributions by property type.[17]+2

The segment’s focus is owning, developing, acquiring, and managing U.S. office, life-science, and mixed-use real estate. These are property categories within the consolidated business, not separately reported segments.[19]

As a separate portfolio measure—not a segment or revenue contribution—the regional distribution of rentable area at June 30, 2026 was approximately 37.6% San Francisco Bay Area, 24.8% Los Angeles, 17.5% Seattle, 15.7% San Diego, and 4.4% Austin.[20] [17]+4

Company history

Kilroy Realty’s business origins date to 1947, when John B. Kilroy Sr. founded the real-estate business. Kilroy Realty Corporation was incorporated in Maryland in 1996 and became a publicly traded REIT with its IPO on January 31, 1997.[21]+2

In 2012, the company sold a 44-property industrial portfolio totaling approximately 3.7 million square feet for about $355 million, a significant portfolio repositioning. In 2018 it acquired a South San Francisco site for approximately $308 million that became Kilroy Oyster Point; construction of the campus’s first phase began in 2019, followed by work on Phase 2 in 2021.[24]+2

In 2021, Kilroy entered the Austin market through its announced $580 million purchase of Indeed Tower, part of three transactions totaling approximately $670 million. On January 22, 2024, Angela M. Aman became CEO and joined the board, succeeding John B. Kilroy Jr.[27][28] [S1][S2][S3][S4][S5][S6][S7][S8][https://media.corporate-ir.net/media_files/nys/krc/2000_AR/pages/company_profile.html][https://www.sec.gov/Archives/edgar/data/1025996/000102599620000050/a123119krckrlp10-k.htm][https://kilroyrealty.com/company/stories/on-this-day-25th-anniversary-of-kilroys-ipo/][https://labusinessjournal.com/real-estate/kilroy-sells-industrial-portfolio/][https://www.businesswire.com/news/home/20180604005746/en/Kilroy-Realty-Acquires-Key-Life-Science-Development][https://kilroyrealty.com/company/stories/kilroy-announces-that-kilroy-oyster-point-phase-2-is-officially-underway/][https://kilroyrealty.com/company/stories/kilroy-expands-into-new-market-with-purchase-of-indeed-tower-in-austin-texas/][https://www.sec.gov/Archives/edgar/data/1025996/000119312523295517/d844696dex991.htm]

Sources

• KILROY REALTY CORP — Full financial report (2026 Q 2)
  4 citations

  [1][2][17][20]
• kilroyrealty.com[3]
• kilroyrealty.com[4]
• KILROY REALTY CORP — Full financial report (2025 Y)
  10 citations

  [5][6][7][8][9][13][14][16][18][19]
• kilroyrealty.com[10]
• kilroyrealty.com[11]
• kilroyrealty.com[12]
• kilroyrealty.com[15]
• media.corporate-ir.net[21]
• www.sec.gov[22]
• kilroyrealty.com[23]
• labusinessjournal.com[24]
• www.businesswire.com[25]
• kilroyrealty.com[26]
• kilroyrealty.com[27]
• www.sec.gov[28]