{"nrhp_refnum":"76000490","name":"Mount Pleasant House","other_names":["Mount Pleasant Museum House"],"category":"building","location":{"address":"Heritage Sq., 3800 Homer St.","address_restricted":false,"city":"Los Angeles","county":"Los Angeles County","state":"CA","lat":34.08804546700003,"lon":-118.20796779699998,"geom_source":"nps_gis"},"listed_date":"1976-12-12","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Commerce","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A two-part Italianate house (main building plus rear service wing) built 1875-1876 in Boyle Heights, Los Angeles, and moved in December 1975 to Heritage Square, 3800 Homer Street, Los Angeles.","why_significant":"The nomination argues the house is historically significant for its association with lumber magnate William H. Perry and Judge Stephen C. Hubbell, both civic leaders in early Los Angeles. It is architecturally significant as an early surviving residence by pioneer architect Ezra F. Kysor, with a high level of integrity in design, materials and workmanship. It is also one of the few 1870s balloon-frame Italianate houses left in the city.","narrative":"Mount Pleasant House is an Italianate residence designed by Ezra F. Kysor and W.H. Mathews and built in 1875-1876 for William H. Perry, an early Los Angeles lumber magnate. Originally on Pleasant Avenue in Boyle Heights, it was moved in December 1975 to Heritage Square, a city-designated cultural park. The wood-frame house has balloon framing, redwood shiplap siding, a hipped roof, bay windows, wood quoins and a bracketed cornice. Later owners included Judge Stephen C. Hubbell, and the building served as a YWCA dormitory and a home for unwed mothers. Stucco, a clay tile roof and an addition were added in 1926, and restoration was removing them. The house is valued for its link to Perry and Hubbell, who shaped early Los Angeles business, utilities, transportation and parks, and for its design by Kysor. It is described as one of the few surviving 1870s dwellings of its type in the city. Plans called for a museum house.","period_of_significance":"1800-1899","architect_builder":"Ezra F. Kysor and W.H. Mathews (architectural firm); built for William H. Perry","architectural_style":"Classic Italianate (neo-classic Italianate of the post Civil War period)","criteria":[],"status_note":"Moved to Heritage Square in 1975; restoration under way, with stucco and clay tile roof being removed, and intended for use as a museum house and headquarters. Condition listed as deteriorated and altered.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:32.29876-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/76000490.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/76000490/6cdd5c2760-800.webp","url_1600":"https://nationalhistoricalregister.com/media/76000490/6cdd5c2760-1600.webp","licence":"CC BY-SA 3.0","author":"Los Angeles","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Mount_Pleasant_House,_Los_Angeles.JPG\" rel=\"noopener\">Los Angeles</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:Mount_Pleasant_House,_Los_Angeles.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123859337","wikipedia":"https://en.wikipedia.org/wiki/Mount_Pleasant_House_(Los_Angeles,_California)","wikidata":"https://www.wikidata.org/wiki/Q20858124"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/los-angeles-county/mount-pleasant-house-76000490/"}