{"nrhp_refnum":"79000532","name":"House at 1254-1256 Montgomery Street","other_names":[],"category":"building","location":{"address":"1254--1256 Montgomery St.","address_restricted":false,"city":"San Francisco","county":"San Francisco","state":"CA","lat":37.800940257000036,"lon":-122.40383072499998,"geom_source":"nps_gis"},"listed_date":"1979-01-31","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A two-story Italianate building at 1254-56 Montgomery Street on Telegraph Hill, San Francisco, built around 1865 as a rooming house, on the site believed to have held Hudson's Windmill.","why_significant":"The nomination argues the building is architecturally significant as a variation of the formal Italianate style of the 1860s, designed for use as a rooming house. It is also historically significant as one of a handful of Telegraph Hill buildings that survived the 1906 fire, which was contained at Montgomery Street. Its largely unaltered exterior contributes to the neighborhood's sense of time and place.","narrative":"Built around 1865 at the southeast corner of Union and Montgomery Streets on Telegraph Hill, this San Francisco building began as a one-story structure, though its interior layout shows a second floor was planned from the start. The second story had been added by the 1890s. The flat-front Italianate design features corner bay windows, double-hung sash windows with formal cornices, applied pilasters and a bracketed roofline cornice. The site is believed to be where Hudson's Windmill once stood. Originally a 25-room rooming house, it was later converted into six railroad flats, and it now holds six apartments. In 1939 the city lowered the street in front by 12 feet, which required the present stairs. The building is valued as a variation of the formal Italianate style and as one of a few Telegraph Hill buildings to survive the 1906 fire, which stopped at Montgomery Street. Its largely unchanged exterior preserves the character of the historic neighborhood.","period_of_significance":"circa 1865","architect_builder":null,"architectural_style":"Italianate (flat-front, with some Renaissance Revival elements noted in the federal review comments)","criteria":[],"status_note":"Currently used as six apartments; the interior was altered but the exterior is basically unaltered. Condition marked fair.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:32.244535-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/79000532.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/79000532/b6aa18c4d8-800.webp","url_1600":"https://nationalhistoricalregister.com/media/79000532/b6aa18c4d8-1600.webp","licence":"CC0","author":"TheCatalyst31","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:1254-1256_Montgomery_Street_corner_view.JPG\" rel=\"noopener\">TheCatalyst31</a>, <a href=\"http://creativecommons.org/publicdomain/zero/1.0/deed.en\" rel=\"license noopener\">CC0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:1254-1256_Montgomery_Street_corner_view.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/123861165","wikipedia":"https://en.wikipedia.org/wiki/House_at_1254%E2%80%931256_Montgomery_Street","wikidata":"https://www.wikidata.org/wiki/Q18151992"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/san-francisco/house-at-1254-1256-montgomery-street-79000532/"}