{"nrhp_refnum":"98000401","name":"Carl Mackley Houses","other_names":[],"category":"building","location":{"address":"4301 E. Bristol St.","address_restricted":false,"city":"Philadelphia","county":"Philadelphia","state":"PA","lat":40.01243897900008,"lon":-75.09850989899996,"geom_source":"nps_gis"},"listed_date":"1998-05-06","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Social History","Architecture","Politics/Government"],"significance_levels":["national"],"summary":{"what_it_is":"A complex of four three-story International Style apartment buildings, a former community building and underground garages in the Juniata Park section of Philadelphia, built in 1934 on a sloping site bounded by Castor Avenue, Bristol, M and Cayuga Streets.","why_significant":"The nomination argues the complex was the first low-rent housing project completed under the New Deal's Public Works Administration and a rare example of labor union-sponsored housing in the United States. It is also presented as an early American example of the International Style in domestic architecture, with buildings lacking applied ornamentation and arranged in parallel rows.","narrative":"Built in 1934 on a sloping site in Philadelphia's Juniata Park section, the Carl Mackley Houses comprise four three-story apartment buildings of reinforced concrete faced with glazed industrial tile, a former community building and about fifty-seven underground garages. The buildings are arranged in four parallel north-south rows around courtyards, with no applied ornament. The project was funded as the first project of the Public Works Administration and was the only limited-dividend housing project funded in Pennsylvania. It was sponsored by the American Federation of Full-Fashioned Hosiery Workers Union for its members, and was named after a striking hosiery worker killed during a 1930 strike. Architects Oskar Stonorov and Alfred Kastner designed the complex, with William Pope Barney serving as architect of record. It is regarded as an early American example of the International Style and as a rare instance of union-sponsored worker housing, and the complex is noted for its shared porches, rooftop laundries and communal facilities.","period_of_significance":"1933-1948","architect_builder":"Stonorov, Oskar; Kastner, Alfred; Barney, William Pope","architectural_style":"Modern Movement/International Style","criteria":["A","C"],"status_note":"Apartments are occupied; the first-floor spaces of Building Four include a rental office and small commercial establishments, and the former community building is used as a laundry.","vacant_flag":false,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:36.4234-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/98000401.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/98000401/97b1fb45b4-800.webp","url_1600":"https://nationalhistoricalregister.com/media/98000401/97b1fb45b4-1600.webp","licence":"Public domain","author":"Smallbones","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Mackley_NE_Philly.JPG\" rel=\"noopener\">Smallbones</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Mackley_NE_Philly.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71997554","wikipedia":"https://en.wikipedia.org/wiki/Carl_Mackley_Houses","wikidata":"https://www.wikidata.org/wiki/Q5040512"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/philadelphia/carl-mackley-houses-98000401/"}