{"nrhp_refnum":"83004244","name":"Estey Hall","other_names":["Allman Building"],"category":"building","location":{"address":"1701 Walnut St.","address_restricted":false,"city":"Philadelphia","county":"Philadelphia","state":"PA","lat":39.95002497300004,"lon":-75.15765662699994,"geom_source":"nps_gis"},"listed_date":"1983-10-28","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Commerce","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"The Allman Building, also known as Estey Hall, is an eight-story office and showroom building at 1701 Walnut Street on the northwest corner of Seventeenth and Walnut Streets in downtown Philadelphia. It was designed by the firm Baker and Dallet and built in 1910 for the Estey Organ Company.","why_significant":"The nomination argues the building is one of Philadelphia's most interesting examples of the Chicago School, combining Commercial and Sullivanesque styles. It is described as one of the earliest office buildings on the Walnut Street corridor west of Broad Street and the only example of Commercial/Sullivanesque architecture along that corridor. Its architectural design and its association with the Estey Organ Company are presented as the basis for its significance.","narrative":"Eight-story office and showroom building at the northwest corner of Seventeenth and Walnut Streets in Philadelphia, designed in 1910 by the firm Baker and Dallet for the Estey Organ Company, which used it as a showroom and offices for its home and church organs. Clad in limestone and terra cotta with a reinforced concrete frame, it has a limestone base, a tripartite-windowed shaft, and a terra cotta cornice capped by a buff brick parapet. Its design blends the Commercial style, which emphasizes fenestration over ornament, with Sullivanesque detailing concentrated at the cornice, spandrels and doorway. It is regarded as one of the city's most notable Chicago School buildings and the only example of that style on this stretch of Walnut Street, where most later towers date from the 1920s and follow Art Deco and Moderne designs. Its interior was remodeled in 1928 after the organ company left, though the exterior remains largely intact.","period_of_significance":"1900-","architect_builder":"Baker and Dallet (architects)","architectural_style":"Chicago School; Commercial and Sullivanesque","criteria":["A","C"],"status_note":"Exterior remains largely intact; interior altered in 1928 after Estey Organ vacated the building.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:32.726928-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/83004244.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/83004244/9fe30b4740-800.webp","url_1600":"https://nationalhistoricalregister.com/media/83004244/9fe30b4740-1600.webp","licence":"Public domain","author":"Smallbones","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:1701_Walnut_Philly.JPG\" rel=\"noopener\">Smallbones</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:1701_Walnut_Philly.JPG"},"district":{"nrhp_refnum":"84003531","name":"East Center City Commercial Historic District","url":"https://nationalhistoricalregister.com/districts/pennsylvania/east-center-city-commercial-historic-district-84003531/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71997110","wikipedia":"https://en.wikipedia.org/wiki/Estey_Hall_(Philadelphia)","wikidata":"https://www.wikidata.org/wiki/Q5401108"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/philadelphia/estey-hall-83004244/"}