{"nrhp_refnum":"10000470","name":"Rose Valley Historic District","other_names":[],"category":"district","location":{"address":"Roughly bounded by Ridley Creek, Woodward Rd, Providence and Brookhaven Rds and Todmorden Ln within Rose Valley Borough","address_restricted":false,"city":"Rose Valley Borough","county":"Delaware County","state":"PA","lat":39.89848966900004,"lon":-75.38508396252288,"geom_source":"nps_gis"},"listed_date":"2010-07-19","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Community Planning and Development"],"significance_levels":["local"],"summary":{"what_it_is":"Rose Valley Historic District is a district of roughly 120 buildings and structures within Rose Valley Borough in Delaware County, Pennsylvania, set in the valley of Vernon Run where it meets Ridley Creek. It includes 18th- to 20th-century vernacular houses, farm buildings, former mill buildings, and arts and crafts community structures.","why_significant":"The nomination argues the district is one of the most important American examples of an intentional community, developed from 1901 by the Rose Valley Arts and Crafts community under William L. Price. It describes the district's buildings as using local stone, stucco and tile in a unified regional vernacular that expressed the community's democratic ideals. It also cites the district's association with Price, its borough incorporation in 1923, and its architect-designed houses into the 1950s.","narrative":"Rose Valley began as a cluster of 18th-century farms and water-powered mills along Vernon Run and Ridley Creek, in the Delaware County hinterland of Philadelphia. In 1901 the Rose Valley Association, led by the architect William L. Price, bought Hutton's Mill and surrounding land, and the community was reorganized around shared paths, a guild hall, and buildings of local rubble stone finished in stucco. Price and his circle built houses of common materials for large and small households alike, producing a unified local look. Architects including William Grey Purcell and Howell Lewis Shay later added modern houses, and the Hedgerow Theatre, which opened in the former mill, became a notable theater. The borough was incorporated in 1923 to preserve the community's separate identity. The district is regarded as an unusually complete record of this utopian experiment and its architecture.","period_of_significance":"1780-1950","architect_builder":"Price, William L.; Price, Walter F.; Shay, Howell Lewis; Purcell, William Grey; Barney, W. Pope","architectural_style":"Pennsylvania vernacular; Georgian; Gothic Revival; Arts & Crafts; Prairie School; California bungalow; International Modern","criteria":["A","B","C"],"status_note":null,"vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:10:27.112979-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/10000470.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/10000470/fcf14aa192-800.webp","url_1600":"https://nationalhistoricalregister.com/media/10000470/fcf14aa192-1600.webp","licence":"Public domain","author":"Smallbones","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Schoen_Watertower.JPG\" rel=\"noopener\">Smallbones</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Schoen_Watertower.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71998021","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q110816132"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/delaware-county/rose-valley-historic-district-10000470/"}