{"nrhp_refnum":"08000084","name":"Quarters 10 and Building 267, Yerba Buena Island","other_names":[],"category":"building","location":{"address":"Jct. Northgate & Macalla Rds. North shore of Yerba Buena Island","address_restricted":false,"city":"Yerba Buena Island","county":"San Francisco","state":"CA","lat":37.81188916000008,"lon":-122.36394631999997,"geom_source":"nps_gis"},"listed_date":"2008-02-26","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A two-story Modern-style officer's residence (Quarters 10) and an adjacent one-car garage (Building 267), built in 1948 at Northgate and Macalla roads on Yerba Buena Island, San Francisco, California.","why_significant":"The nomination argues the property is locally significant under Criterion C as an example of mid-twentieth-century military residential design moving from Classical Revival to Modern. It blends Modern and International characteristics with elements of the regional Bay Tradition, which was unusual for military housing. It was the only residence built on the island in the post-war period and retains a high degree of integrity.","narrative":"Quarters 10 and its one-car garage, Building 267, sit on a steep hillside at Northgate and Macalla roads on Yerba Buena Island. Built in 1948 by the Navy's Bureau of Yards and Docks, the house is two stories with a flat roof, overhanging eaves, and an irregular plan that includes a curved, heavily glazed east facade. Its walls are board-formed concrete, partly covered with narrow lapped siding, possibly to match nearby officers' quarters. Patios with scored sunburst designs lie beneath overhangs supported by pipe columns. The garage is poured concrete with matching siding. The house was the only residence built on the island after World War II, when the island became an officers' housing compound serving Treasure Island. It marks a shift in military housing from Classical traditions toward Modern design, and its look reflects the Bay Tradition of regional modernism. It is considered locally significant for architecture and retains a high degree of integrity.","period_of_significance":"1948","architect_builder":"Bureau of Yards and Docks (BuDocks); individual architect unknown","architectural_style":"Modern","criteria":["C"],"status_note":"Both buildings are listed with current function as single-family dwelling and secondary structure; the form says Quarters 10 has undergone little change since original construction.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:29.729445-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/08000084.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123861263","wikipedia":null,"wikidata":null},"indexable":true,"url":"https://nationalhistoricalregister.com/california/san-francisco/quarters-10-and-building-267-yerba-buena-island-08000084/"}