{"nrhp_refnum":"85001065","name":"Edgemoor Farm Dairy Barn","other_names":["Edgemoor Polo Barn"],"category":"building","location":{"address":"9064 Edgemoor Dr., Edgemoor Geriatric Hospital","address_restricted":false,"city":"Santee","county":"San Diego County","state":"CA","lat":32.843482865000055,"lon":-116.97008611299998,"geom_source":"nps_gis"},"listed_date":"1985-05-16","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture","Agriculture"],"significance_levels":["state"],"summary":{"what_it_is":"A large wood-frame dairy barn with a Dutch gambrel roof, built in 1913 on the grounds of the Edgemoor Geriatric Hospital in Santee, San Diego County, California. It is the last relatively unaltered building of the former Edgemoor Farm.","why_significant":"The nomination argues the barn is the only known Dutch gambrel-roofed barn of its type and period surviving in the San Diego area. It is also the last remaining building of Edgemoor Farm, which was a leader in scientific Guernsey dairy breeding and also raised polo ponies under owner Walter H. Dupee.","narrative":"Built in 1913 on what is now the Edgemoor Geriatric Hospital grounds in Santee, this wood-frame barn measures 90 by 30 feet and rises 44 feet to the ridge of its Dutch gambrel roof. It sits on a poured concrete foundation, with redwood siding, fir framing and two ornate galvanized ventilators. The barn was built for Walter H. Dupee, who ran Edgemoor Farm as a dairy and polo pony operation. It housed prize Guernsey bulls, and the farm was called a leading Guernsey breeder in the United States, winning 70 percent of the prizes at the 1922 National Dairy Show. San Diego County bought the property in the 1920s and used the barn for livestock until 1953. A 1955 remodel turned it into storage, though its layout remains close to the original. It is the last relatively unaltered building of the farm and the only known barn of its style in the San Diego region. The name Polo Barn persists, although the pony stables stood elsewhere.","period_of_significance":"1900- (specific date 1913)","architect_builder":null,"architectural_style":"Dutch gambrel roof barn","criteria":[],"status_note":"Occupied and in use as storage and a central supply warehouse for the hospital; condition rated excellent and moderately altered.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:27.583739-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/85001065.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/85001065/588ddb0c9c-800.webp","url_1600":"https://nationalhistoricalregister.com/media/85001065/588ddb0c9c-1600.webp","licence":"CC BY-SA 3.0","author":"Somewikistuff","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Edgemoor_Farm_Dairy_Barn_April_2009_002.jpg\" rel=\"noopener\">Somewikistuff</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:Edgemoor_Farm_Dairy_Barn_April_2009_002.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123860850","wikipedia":"https://en.wikipedia.org/wiki/Edgemoor_Farm_Dairy_Barn","wikidata":"https://www.wikidata.org/wiki/Q5337800"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/san-diego-county/edgemoor-farm-dairy-barn-85001065/"}