{"nrhp_refnum":"70000242","name":"Winslow, William H., House And Stable","other_names":[],"category":"building","location":{"address":"515 Auvergne Pl.","address_restricted":false,"city":"River Forest","county":"Cook County","state":"IL","lat":41.888573456000074,"lon":-87.82884706799996,"geom_source":"nps_gis"},"listed_date":"1970-04-17","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["national"],"summary":{"what_it_is":"A house and separate stable (garage) at 515 Auvergne Place in River Forest, Cook County, Illinois, designed by Frank Lloyd Wright and built in 1893.","why_significant":"It was Frank Lloyd Wright's first independent commission and is described as the high point of his early work in what became the Prairie School. The nomination calls it the foremost exponent of that style and notes it has been cited in countless publications over about 80 years.","narrative":"Built in 1893 at 515 Auvergne Place in River Forest, Illinois, this house and its companion stable were the first independent commission of architect Frank Lloyd Wright. The stable, or garage, was designed and built at the same time and is closely coordinated with the house in design and site. The building has a rectilinear form, a wide overhanging roof and a porte-cochere on one side, originally for carriages and now for automobiles. Its well-integrated ornament recalls the work of Louis Sullivan, in whose office Wright had trained. The nomination describes it as the high point of Wright's early work in what became the Prairie School, and as one of the most outstanding first commissions by any architect. Only one alteration is recorded: a screened rear porch was enclosed in keeping with the original design. The property was described as in superb condition and carefully maintained, and it sits on about three-tenths of an acre.","period_of_significance":"1893","architect_builder":"Frank Lloyd Wright","architectural_style":"Prairie School","criteria":[],"status_note":"Described as in superb condition and meticulously maintained; the only alteration is an enclosed rear screened porch. The form marks it as occupied.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:34.548833-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/6/8922/28892206/content/electronic-records/rg-079/NPS_IL/70000242.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/70000242/f23be1a8de-800.webp","url_1600":"https://nationalhistoricalregister.com/media/70000242/f23be1a8de-1600.webp","licence":"CC BY-SA 2.0","author":"Oak Park Cycle Club","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:William_H._Winslow_House_Front_Facade.jpg\" rel=\"noopener\">Oak Park Cycle Club</a>, <a href=\"https://creativecommons.org/licenses/by-sa/2.0\" rel=\"license noopener\">CC BY-SA 2.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:William_H._Winslow_House_Front_Facade.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/28892206","wikipedia":"https://en.wikipedia.org/wiki/Winslow_House_(River_Forest,_Illinois)","wikidata":"https://www.wikidata.org/wiki/Q2395397"},"indexable":true,"url":"https://nationalhistoricalregister.com/illinois/cook-county/winslow-william-h-house-and-stable-70000242/"}