One Embarcadero Center is an class-A office skyscraper

Skyscraper

A skyscraper is a tall, continuously habitable building of many stories, often designed for office and commercial use. There is no official definition or height above which a building may be classified as a skyscraper...

 in the Financial District of San Francisco, California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

. The building is part of the Embarcadero Center

Embarcadero Center

Embarcadero Center is a commercial complex of five office towers and two hotels on a site located off the Embarcadero in the financial district of San Francisco, California. The Trammell Crow, David Rockefeller and John Portman development was begun with Tower One in 1971, with the last...

complex of six interconnected buildings and one off-site extension. The skyscraper, completed in 1971, stands 569 ft (173 m) tall with 45 stories without its flagpole. One Embarcadero Center is the second tallest building out of the entire complex, standing at slightly shorter than Four Embarcadero Center

Four Embarcadero Center

Four Embarcadero Center is a class-A office skyscraper in the Financial District of San Francisco, California. The building is part of the Embarcadero Center complex of six interconnected buildings and one off-site extension. The skyscraper, completed in 1982, stands with 45 stories...

, which is the tallest in the complex.