225 Bush Street, originally known as the Standard Oil Building, is a 25 floor building, including 21 floors of office space, 1 floor of retail, 1 storage floor and 2 basement levels including the garage in San Francisco. It was the tallest building in the city from its completion in 1922 to 1925.
It contains approximately 560,000 sq ft (52,000 m2) of rentable space. It is an historic building, being the head quarters for Standard Oil of California, now Chevron, for over half a century. Composed of two buildings, the old wing was built in the 1920s. The new wing was built in the 1950s.