Kilroy Realty Corp. operates as a self-administered real estate investment trust, which engages in the development, acquisition, and management of office and mixed-use real estate assets. It owns, develops, acquires and manages real estate assets, consisting primarily of Class A properties in the coastal regions of Los Angeles, Orange County, San Diego County, the San Francisco Bay Area, and Greater Seattle. The company was founded by John B. Kilroy, Sr. in 1947 and is headquartered in Los Angeles, CA.