{"nrhp_refnum":"74000525","name":"Phillips Mansion","other_names":[],"category":"building","location":{"address":"2640 W. Pomona Blvd.","address_restricted":false,"city":"Pomona","county":"Los Angeles County","state":"CA","lat":34.05604747800004,"lon":-117.79631640199995,"geom_source":"nps_gis"},"listed_date":"1974-11-06","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Transportation","Architecture","Social History"],"significance_levels":["local"],"summary":{"what_it_is":"A twelve-room Victorian brick mansion at 2640 W. Pomona Boulevard in the Spadra section of Pomona, Los Angeles County, California, completed in 1875 for rancher Louis Phillips. Bricks were made on site by Joseph Mullally.","why_significant":"The nomination calls it the first brick house built in Pomona Valley and the oldest house there apart from four adobes. Its Second Empire mansard design is described as extremely rare in brick in Southern California. It is also tied to Louis Phillips, a valley leader who helped bring the Southern Pacific Railroad to Spadra, and to the Historical Society's 1966 rescue of the house.","narrative":"Completed in 1875 in the Spadra section of Pomona, this twelve-room brick mansion was built for rancher Louis Phillips at a cost of $20,000. Pioneer brick maker Joseph Mullally of Los Angeles made the bricks on the spot, and the house is described as the first brick residence in Pomona Valley. It features a shingled mansard roof with dormers lighting a third-floor ballroom, and it was lit by gas manufactured on the premises. Architect Amos W. Randall called it a rare Southern California example of Second Empire design in brick. Phillips helped bring the Southern Pacific Railroad to Spadra by donating right-of-way land. After passing through several owners, including a period as apartments, the house faced demolition for a factory until the Historical Society of Pomona Valley bought it in 1966 to restore it. A porch added around 1900 was slated for removal to recover the original front. The grounds include an avocado grove and the old railroad right-of-way.","period_of_significance":"19th Century (1875 construction)","architect_builder":"Joseph Mullally (brick maker); built for Louis Phillips","architectural_style":"Victorian; Napoleon III Second Empire French Renaissance mansard roof design","criteria":[],"status_note":"Owned by the City of Pomona and used as a museum. Admission is restricted to special events, and restoration by the Historical Society of Pomona Valley is planned. Condition is checked as altered and the site as original.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:31.447984-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/74000525.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/74000525/894364863c-800.webp","url_1600":"https://nationalhistoricalregister.com/media/74000525/894364863c-1600.webp","licence":"CC BY-SA 3.0","author":"Los Angeles","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Phillips_Mansion,_Pomona_1.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:Phillips_Mansion,_Pomona_1.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123859408","wikipedia":"https://en.wikipedia.org/wiki/Phillips_Mansion","wikidata":"https://www.wikidata.org/wiki/Q7185916"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/los-angeles-county/phillips-mansion-74000525/"}