{"nrhp_refnum":"79000528","name":"Audiffred Building","other_names":[],"category":"building","location":{"address":"1--21 Mission St.","address_restricted":false,"city":"San Francisco","county":"San Francisco","state":"CA","lat":37.79331146000004,"lon":-122.39253430899998,"geom_source":"nps_gis"},"listed_date":"1979-05-10","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Commerce","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A three-story masonry commercial building at 100 The Embarcadero (corner of Mission and Steuart Streets) in San Francisco, built in 1889 by Hippolite D'Audiffred in a French Mansard-inspired style.","why_significant":"It is described as one of the last buildings conveying the flavor of modest pre-1906 commercial San Francisco, and the only structure left intact on the landward side of The Embarcadero after the 1906 earthquake. It is tied to the waterfront's maritime labor history, housing seamen's unions and the offices of Harry Bridges, and it was later home to an art school. The nomination also calls it the finest piece of architecture on that stretch of The Embarcadero.","narrative":"Built in 1889 by Hippolite D'Audiffred, a Frenchman who made his living in charcoal, this three-story brick building at the corner of The Embarcadero and Mission Street was designed to echo French commercial architecture. Its ground floor has cast iron columns, the second floor is brick with quoins and corbeled window moldings, and the top floor is a mansard clad in blue-grey slate with dormers. A 1924 bank remodel added a cast frieze of seahorses and nautical motifs. The building survived the 1906 fire after a bartender reportedly bargained with firefighters, and it was the only structure left on its side of the waterfront. It later housed seamen's unions, Harry Bridges' offices, and Hassel Smith's art school. A fire in 1978 gutted the interior, leaving the facades as the historically significant element. Its listing recognizes its architecture, its survival, and its link to San Francisco's maritime and labor history.","period_of_significance":"1800-1899","architect_builder":"Built by Hippolite D'Audiffred; designer unknown","architectural_style":"Late Nineteenth Century commercial building imitating French Mansard architecture","criteria":[],"status_note":"Interior extensively damaged by fire in August 1978; listed as unoccupied/vacant, with rehabilitation planned that would demolish the interior while protecting the exterior facades.","vacant_flag":true,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:31.836395-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/79000528.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/79000528/f485b6ff24-800.webp","url_1600":"https://nationalhistoricalregister.com/media/79000528/f485b6ff24-1600.webp","licence":"CC BY-SA 3.0","author":"Sanfranman59","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Audiffred_Building_(San_Francisco).JPG\" rel=\"noopener\">Sanfranman59</a>, <a href=\"https://creativecommons.org/licenses/by-sa/3.0\" rel=\"license noopener\">CC BY-SA 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Audiffred_Building_(San_Francisco).JPG"},"district":{"nrhp_refnum":"06000372","name":"Port of San Francisco Embarcadero Historic District","url":"https://nationalhistoricalregister.com/districts/california/port-of-san-francisco-embarcadero-historic-district-06000372/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123861037","wikipedia":"https://en.wikipedia.org/wiki/Audiffred_Building","wikidata":"https://www.wikidata.org/wiki/Q38585977"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/san-francisco/audiffred-building-79000528/"}