{"nrhp_refnum":"06001237","name":"Williams, Roger Y., House","other_names":["Swanner House"],"category":"building","location":{"address":"29991 Camino Capistrano","address_restricted":false,"city":"San Juan Capistrano","county":"Orange County","state":"CA","lat":33.52863203700008,"lon":-117.67288038299995,"geom_source":"nps_gis"},"listed_date":"2007-01-10","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A 1923 two-story Craftsman style ranch house with a tank house (water tower) and garage, at 29991 Camino Capistrano in San Juan Capistrano, Orange County, California. It sits on a 0.35 acre parcel beside a navel orange grove.","why_significant":"The nomination argues the property is one of the few remaining intact ranch houses in San Juan Capistrano, a once common property type reflecting the area's late nineteenth and early twentieth century agricultural history. It is significant at the local level under Criterion C for architecture. It is described as one of the best examples of its type, with all original features intact and a high degree of integrity.","narrative":"This 1923 ranch property on Camino Capistrano in San Juan Capistrano consists of a two-story Craftsman style house, a 35-foot tank house and a garage, all built at the same time. The house has a wood frame, redwood siding laid in a pattern of two narrow boards and one wide, decorative rafter tails, knee brackets and original fir built-ins and oak floors inside. The tank house still holds its original water tank. Orange groves surround the property on two sides, and part of the grove is to be preserved to maintain the setting. The property is recognized as one of the few intact ranch houses left in a town once dominated by walnut and later citrus farming. Only three such ranch houses remain in their original settings, and this one keeps every original feature, including the water tower that a comparable house lacks. It is significant locally for its architecture, with a period of significance from 1923 to 1956.","period_of_significance":"1923-1956","architect_builder":null,"architectural_style":"Craftsman","criteria":["C"],"status_note":"Listed as not in use; the property is owned by the City of San Juan Capistrano and designated a \"Building of Distinction.\" The buildings appear virtually unaltered from 1923, with re-roofing in 2003, gutters added in 2005 and repainting in 2005.","vacant_flag":true,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:29.723611-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/06001237.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/06001237/28ca58734b-800.webp","url_1600":"https://nationalhistoricalregister.com/media/06001237/28ca58734b-1600.webp","licence":"CC BY-SA 3.0","author":"Bluesnote","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Roger_Y._Williams_House.JPG\" rel=\"noopener\">Bluesnote</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:Roger_Y._Williams_House.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123860370","wikipedia":"https://en.wikipedia.org/wiki/Roger_Y._Williams_House","wikidata":"https://www.wikidata.org/wiki/Q85797685"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/orange-county/williams-roger-y-house-06001237/"}