100 First Plaza

100 First Plaza (also known as the Delta Dental Tower) is a 27-story, 136 m (446 ft) high-rise office building located at 100 First Street in the Financial District of San Francisco, California. Construction of the building was completed in 1988. It is the 35th-tallest building in the city. Skidmore, Owings & Merrill served as the design architects for the 100 First Plaza development that was designed with several setbacks, along with a grooved and faceted façade, and contains several rooftop curtain walls, and a notable 19 m (62 ft) spire.

100 First Plaza
From Salesforce Park in April 2021
Location within San Francisco
Alternative namesAndersen Tax Tower
General information
TypeCommercial offices
Architectural stylePostmodern
Location100 First Street
San Francisco, California
Coordinates37.789167°N 122.3975°W / 37.789167; -122.3975
Completed1988
OwnerKilroy Realty Corporation
ManagementKilroy Realty Corporation
Height
Antenna spire136.25 m (447.0 ft)
Roof116 m (381 ft)
Technical details
Floor count27
Floor area450,200 sq ft (41,820 m2)
Design and construction
Architect(s)SOM
DeveloperBarker Patrinely Group LLC
Main contractorSwinerton & Walberg
References
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