{"nrhp_refnum":"96001196","name":"Greenwood Farm","other_names":[],"category":"building","location":{"address":"888 West Valley Dr., Tredyffrin Township","address_restricted":false,"city":"Wayne","county":"Chester County","state":"PA","lat":40.06756241000005,"lon":-75.42366044399995,"geom_source":"nps_gis"},"listed_date":"1996-10-24","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["state"],"summary":{"what_it_is":"Greenwood Farm is a farmstead on a 3.64-acre tract in Tredyffrin Township, Chester County, Pennsylvania, with an 18th-century stone house remodeled in the 19th and early 20th centuries, an 18th-century stone bank barn, a 19th-century stone carriage house, a mid-19th-century frame tenant house, a stone smoke house, and a ca. 1915 tennis court and swimming pool.","why_significant":"The nomination argues the farm is significant under Criterion C for architecture as an outstanding example of the Colonial Revival remodeling of Pennsylvania stone farmhouses, a pattern that developed in suburban areas in the early twentieth century. It retains almost all features of the ca. 1915 Colonial Revival work, and its barn, tenant house and parts of the main house retain nineteenth-century appearance. It is also described as a locally important illustration of farms converted into gentleman's estates.","narrative":"Greenwood Farm occupies a 3.64-acre tract in Tredyffrin Township, Chester County, where an 18th-century stone farmstead was reworked over the 19th and early 20th centuries. The main house began as a stone dwelling sometime before 1798 and was expanded in the early 1800s with a two-bay wing. Around 1915, the Heckscher family, who had owned the property since 1874, had the house remade in the Colonial Revival style, adding dormers, a pent roof and Corinthian columns, and laid out a swimming pool, tennis court and other grounds for leisure. The estate also includes an 18th-century stone bank barn bearing incised 1793 inscriptions, a 19th-century stone carriage house, and a mid-19th-century frame tenant house. The property is regarded as an outstanding example of the Colonial Revival reworking of Pennsylvania stone farmhouses, and it retains much of its early twentieth-century character.","period_of_significance":"ca. 1790-1940","architect_builder":null,"architectural_style":"Federal; Colonial Revival","criteria":["C"],"status_note":"The kitchen wing was updated ca. 1940 and the billiard hall and a service wing were demolished ca. 1940; the buildings are described as contributing and the property is in use as a dwelling.","vacant_flag":false,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:37.740859-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/96001196.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/96001196/d4aac79a86-800.webp","url_1600":"https://nationalhistoricalregister.com/media/96001196/d4aac79a86-1600.webp","licence":"CC0","author":"Smallbones","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Greenwood_Farm.JPG\" rel=\"noopener\">Smallbones</a>, <a href=\"http://creativecommons.org/publicdomain/zero/1.0/deed.en\" rel=\"license noopener\">CC0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Greenwood_Farm.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71998570","wikipedia":"https://en.wikipedia.org/wiki/Greenwood_Farm_(Tredyffrin_Township,_Pennsylvania)","wikidata":"https://www.wikidata.org/wiki/Q5605020"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/chester-county/greenwood-farm-96001196/"}