{"nrhp_refnum":"74001781","name":"Fallingwater","other_names":["Edgar Kaufman House"],"category":"building","location":{"address":"W of PA 381","address_restricted":false,"city":"Mill Run","county":"Fayette County","state":"PA","lat":39.90623254500008,"lon":-79.46795394099996,"geom_source":"nps_gis"},"listed_date":"1974-07-23","is_nhl":true,"nhl_designated_date":"1976-05-11","areas_of_significance":["Landscape Architecture","Conservation","Architecture"],"significance_levels":["national"],"summary":{"what_it_is":"Fallingwater, the Edgar Kaufmann country-resort house at Bear Run near Mill Run in Fayette County, Pennsylvania, with a guest house and servants' quarters added to its rear. The main house was begun in 1936 and completed the following year, and the guest house was added two years later.","why_significant":"The nomination argues the house is significant for its design and for its architect, Frank Lloyd Wright. It describes the building as a creative work of architecture that is an extension of its natural surroundings rather than an intrusion on them. It also calls it probably Wright's greatest residential structure and one of the best of his career, built during the depression.","narrative":"Fallingwater is a country house at Bear Run in Fayette County, Pennsylvania, designed by Frank Lloyd Wright for Edgar Kaufmann, a Pittsburgh department store owner. The main house was begun in 1936 and completed in 1937, and a guest house with servants' quarters, a garage and a swimming pool was added to the rear in 1938. Its concrete trays are cantilevered over a waterfall, and its sandstone, glass and flagstone walls and floors draw on the surrounding rock. Wright designed most of the built-in furniture, which uses walnut veneer. The house is valued for its design and for Wright's late work, built during the depression. In 1963 Edgar Kaufmann Jr. gave the property and an endowment to the Western Pennsylvania Conservancy, which maintains it and conducts tours.","period_of_significance":"1936-1938","architect_builder":"Frank Lloyd Wright (architect)","architectural_style":null,"criteria":[],"status_note":"Unaltered, original site; the Western Pennsylvania Conservancy maintains the property and conducts tours.","vacant_flag":false,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:28.815892-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/74001781.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/74001781/d53a344800-800.webp","url_1600":"https://nationalhistoricalregister.com/media/74001781/d53a344800-1600.webp","licence":"Public domain","author":"Carol M. Highsmith","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Fallingwater_2007.jpg\" rel=\"noopener\">Carol M. Highsmith</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Fallingwater_2007.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71996566","wikipedia":"https://en.wikipedia.org/wiki/Fallingwater","wikidata":"https://www.wikidata.org/wiki/Q463179"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/fayette-county/fallingwater-74001781/"}