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100 First Plaza facts for kids

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100 First Plaza
Alternative names Andersen Tax Tower
General information
Type Commercial offices
Architectural style Postmodern
Location 100 First Street
San Francisco, California
Coordinates 37°47′21″N 122°23′51″W / 37.789167°N 122.3975°W / 37.789167; -122.3975
Completed 1988
Owner Kilroy Realty Corporation
Management Kilroy Realty Corporation
Antenna spire 136.25 m (447.0 ft)
Roof 116 m (381 ft)
Technical details
Floor count 27
Floor area 450,200 sq ft (41,820 m2)
Design and construction
Architect SOM
Developer Barker Patrinely Group LLC
Main contractor Swinerton & Walberg

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.


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  • AppsFlyer
  • Andersen Tax
  • HomeLight
  • Okta
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