{"nrhp_refnum":"86001477","name":"Edison Historic District","other_names":[],"category":"district","location":{"address":"611, 637, and 500 blk. of W. Second St.","address_restricted":false,"city":"Pomona","county":"Los Angeles County","state":"CA","lat":34.05766386200003,"lon":-117.75450564399995,"geom_source":"nps_gis"},"listed_date":"1986-08-13","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry","Exploration/Settlement","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A commercial historic district of brick buildings along the 500 and 600 blocks of West Second Street in Pomona, California, covering about 3.42 acres. The buildings date from 1885 to 1923 and served the auto-service trade.","why_significant":"The nomination argues the block shows the growth of Pomona's auto-related businesses and the city's role in early electric power development. It also presents a cohesive streetscape of styles popular around 1900-1910 that kept its integrity. The district is judged significant at the local level.","narrative":"Along the 500 and 600 blocks of West Second Street in Pomona, a group of brick buildings records how the city moved from horse-drawn trade to the automobile. Built between 1885 and 1923, they include early hay, feed and blacksmith businesses, garages, an auto agency, a cooperative grocery with a dance hall above, a National Guard armory, an Auto Club office and a large Southern California Edison building. Pomona Garage opened in 1910 and began the town's auto-related industries, and its jitney service ran to Santa Ana and Anaheim. The Edison building began as a transformer station in 1906 and grew to fill its lot by 1928, tied to Pomona's part in proving long-distance power transmission. Because a 1960 downtown mall stopped at Park Street, this stretch escaped the stucco and metal facades applied farther east. The result is a cohesive streetscape from around 1900-1910 that has kept its character, with Mission Revival styling at the 1904 armory.","period_of_significance":"1904-1923","architect_builder":null,"architectural_style":"Classical in style, with a Mission Revival armory (1904)","criteria":[],"status_note":"Condition is listed as good, altered, on its original site. Present uses include commercial use, and the buildings are occupied.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:28.171793-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/86001477.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/86001477/e22e64c169-800.webp","url_1600":"https://nationalhistoricalregister.com/media/86001477/e22e64c169-1600.webp","licence":"CC BY-SA 3.0","author":"Los Angeles","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Edison_Historic_District,_Pomona.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:Edison_Historic_District,_Pomona.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123859073","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q49485821"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/los-angeles-county/edison-historic-district-86001477/"}