{"nrhp_refnum":"90001812","name":"Patterson Branch Library","other_names":["Carnegie Professional Center"],"category":"building","location":{"address":"355 W. Las Palmas Ave.","address_restricted":false,"city":"Patterson","county":"Stanislaus County","state":"CA","lat":37.47110838800006,"lon":-121.14308452199998,"geom_source":"nps_gis"},"listed_date":"1990-12-10","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture","Social History"],"significance_levels":["local"],"summary":{"what_it_is":"A one-story Classical Revival former Carnegie library at 355 W. Las Palmas in Patterson, Stanislaus County, California. It is stucco over brick on a high raised basement, with the cornerstone laid in April 1921 and the library opening in August 1921.","why_significant":"The nomination presents it as one of the last Carnegie libraries built in California, funded through a Carnegie grant plus a community fundraising campaign. It is also significant for its Classical Revival design with Spanish elements, chosen to fit the planned town of Patterson. It was marked under Criteria A and C, for social history and architecture, at the local level.","narrative":"Built in 1921 at 355 W. Las Palmas, this former Carnegie library is a one-story Classical Revival building of stucco over brick, set on a high raised basement. A projecting central entrance with a round arch, a low hipped roof with carved rafters, and tall narrow windows give it a Spanish flavor that matches the planned town of Patterson. The Carnegie grant of $3,000 was approved in 1916, but postwar prices made it inadequate. Residents, led by the Women's Improvement Club, raised additional funds, including through a week of Chautauqua. The Patterson Land Company donated the lot on condition of library use. When the county opened a new library in 1976, the building reverted to the donors and was sold. It later served as a real estate office and an artist's studio and gallery. It was designated a local landmark in 1989 and was being renovated for professional offices. The architect is known only as De Colmisnil.","period_of_significance":"1921","architect_builder":"Architect De Colmisnil (named in the Patterson Irrigator of August 25, 1921, as \"Architect De Colmisnil\")","architectural_style":"Classical Revival, with Spanish elements","criteria":["A","C"],"status_note":"Described as in good condition with integrity maintained; being renovated for reuse as the Carnegie Professional Center after earlier use as a real estate office and an artist's studio and gallery.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:28.262165-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/90001812.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/90001812/cb1caccb30-800.webp","url_1600":"https://nationalhistoricalregister.com/media/90001812/cb1caccb30-1600.webp","licence":"CC BY-SA 3.0","author":"NewmanHouse2004","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Patterson_Branch_Library.JPG\" rel=\"noopener\">NewmanHouse2004</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:Patterson_Branch_Library.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123857836","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q133568278"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/stanislaus-county/patterson-branch-library-90001812/"}