About 650 California Street
650 California Street, also known as the Hartford Building, is a 34 story, 142 m, (466 feet) office tower on the northwestern edge of San Francisco's Financial District. The tower is located on California Street on the edge of Chinatown, and not far from 555 California Street. 650 California is visible from every direction except from the southeast, where the Financial District skyscrapers block the view. The building was designed by Edward Charles ("Chuck") Bassett of Skidmore, Owings & Merrill for Hartford Insurance, its initial tenant. It is architecturally significant, featuring a tall modernist lobby, high ceilings, and an exterior skeleton of floor-to-ceiling windows recessed into a square gridwork of precast white reinforced concrete. When this tower was completed in 1964, it was the second in San Francisco larger than 400,000 sq ft (37,000 m). It also became California's tallest building, replacing both the Russ Building in San Francisco and the Los Angeles City Hall in Los Angeles, California. Later skyscrapers in both San Francisco and Los Angeles took the title of California's tallest from this building.