Bank of California Building, Financial skyscraper in Financial District, San Francisco, United States.

The Bank of California Building at 400 California Street combines a three-story neoclassical temple-like structure of 1908 with a 22-story, 312 ft (95 m) tower added on its west side in 1967. The older building's facade has fluted Corinthian columns beneath an entablature inscribed "THE BANK OF CALIFORNIA"; the tower is clad in glass curtain wall with vertical piers and pale grey side walls. Inside, a 15 m banking hall rises to the roof, ringed on three sides by colossal colonnades.

The building was erected in 1908, shortly after the 1906 earthquake, and was among the first commercial structures to lead the rebuilding of the Financial District. Its creation marked the business community's confidence in the city's future following the disaster.

The building displays Greek-Roman features with large windows and ornamental cornices that define its exterior. These details reflect the taste of wealthy bankers who wanted to express their power through monumental architecture in the early 1900s.

The building is easily accessible from throughout the Financial District and features spacious entrance areas on California Street. Visitors can admire the ornate architecture from the exterior and in public spaces as they move through the structure.

The 1908 temple front was modelled on the Knickerbocker Trust Company building in New York City, finished shortly before. Behind the six Corinthian columns of the California Street facade lies a banking hall 15 metres high, ringed on three sides by colossal colonnades and rising to the roof.