Office/Mixed-Use, Award of Merit: 50 United Nations Plaza Federal Building, San Francisco
The 1936 Beaux-Arts office building in San Francisco's Civic Center National Historic Landmark District was vacated in 2007 due to seismic deficiencies. During a 350,000-sq-ft seismic retrofit, crews modernized the space into an efficient and comfortable workplace. Designers of the LEED-Platinum project sought to showcase appropriate sustainable measures for historic buildings. For example, daylight sensors reduce energy loads for LED lighting by 48%, and original double-hung, wood-framed windows were restored with low-VOC paint, new hardware and energy-efficient glass.
Contractor Hathaway Dinwiddie Construction Co.
Owner General Services Administration, Pacific Rim Region
Lead Design HKS Inc.
Structural Engineer Nabih Youssef Associates
MEP Engineer WSP Flack + Kurtz
Consultants Knapp Architects; Cliff Lowe & Associates; Page & Turnbull; Horton Lees Brogden; The Fire Consultants