{"nrhp_refnum":"91000097","name":"West Diamond Street Townhouse Historic District","other_names":["West Diamond Street Brownstone Historic District"],"category":"district","location":{"address":"3008--3146, 3011--3215 Diamond St.","address_restricted":false,"city":"Philadelphia","county":"Philadelphia","state":"PA","lat":39.98818851300007,"lon":-75.18386518599993,"geom_source":"nps_gis"},"listed_date":"1991-02-21","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A historic district of brownstone town houses on the 3000, 3100 and 3200 blocks of Diamond Street in North Philadelphia, Pennsylvania. The rows were built in the early 1890s by developers William Albrecht and James H. Stevenson.","why_significant":"The district is significant as a tightly grouped set of larger, flamboyantly detailed brownstone residences built for a rising managerial class, set among smaller workers' rowhouses. The nomination argues the blocks are distinct because of their contiguity and the architectural character of their facades, including ornate pressed metal cornices and Furness-derived and Colonial Revival motifs. It is also tied to the builders and the architect W. Frisbey Smith.","narrative":"Brownstone town houses built in 1891 to 1893 line the 3000 to 3200 blocks of Diamond Street in North Philadelphia, forming a cluster of larger residences among the region's two- and three-story brick workers' rows. Two builders, William Albrecht and James H. Stevenson, constructed the rows on opposite sides of the street, with Stevenson's north side group designed partly by the architect W. Frisbey Smith. The facades are smooth-dressed brownstone with rough-dressed bases and sills, and the pressed metal cornices carry modillions, rinceaux and finials. Interiors follow the Philadelphia side hall plan, with parlors opening off the stair hall. The houses were built for managers and businessmen who worked in the nearby mills and center city, and the district is valued for the visual unity of its continuous blocks, which are unusual in the area. Its ornament and scale also reflect the social hierarchy of late nineteenth century North Philadelphia.","period_of_significance":"1890-1899","architect_builder":"Architect: Smith, W. Frisbey; Builders: Albrecht, William F.; Stevenson, James H. & James L.","architectural_style":"Queen Anne: Eastlake; Renaissance: French Renaissance; Other: Victorian Eclectic","criteria":["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 17:11:35.756901-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/91000097.pdf"},"photo":null,"district":{"nrhp_refnum":"72001151","name":"Fairmount Park","url":"https://nationalhistoricalregister.com/districts/pennsylvania/fairmount-park-72001151/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71997000","wikipedia":null,"wikidata":null},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/philadelphia/west-diamond-street-townhouse-historic-district-91000097/"}