{"nrhp_refnum":"76001661","name":"Commandant's Quarters","other_names":["Quarters \"A\""],"category":"building","location":{"address":"U.S. Naval Base","address_restricted":false,"city":"Philadelphia","county":"Philadelphia","state":"PA","lat":39.89683791500005,"lon":-75.17695295099998,"geom_source":"nps_gis"},"listed_date":"1976-06-03","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Military","Architecture"],"significance_levels":["national"],"summary":{"what_it_is":"A three-story brick residence, known as Quarters \"A\" and the Commandant's Quarters, at the U.S. Naval Base in Philadelphia, Pennsylvania. Construction began on 19 August 1874 and was completed on 30 September 1875.","why_significant":"The nomination argues the building is the first set of quarters built in the Navy Yard and is a good example of the mid-nineteenth-century Italian Villa style. It is also associated with the Navy's early development of the League Island site. The building was noted in the Picture History of the U.S. Navy.","narrative":"Brick residence at the Philadelphia Naval Base, built between August 1874 and September 1875 with a slate roof and stone and concrete foundations. It is three stories high, with a square tower, gabled roofs, bracketed eaves, and segmental-arched windows grouped in twos and threes. The Navy assigned it to the civil engineer developing the League Island site and later to the Captain of the Yard, who lived there until 1960. It is regarded as the first set of quarters built in the Navy Yard. A 1901 porch wraps the north and east sides. The building is representative of the Italian Villa style, which was popular in the mid-nineteenth century, though its 1875 date was late for that style. It has since been converted into a Naval Historical Museum depicting the development of the Navy and the Naval Base.","period_of_significance":"1875","architect_builder":null,"architectural_style":"Italian Villa","criteria":[],"status_note":"Converted to a permanent Naval Historical Museum; in good condition with interior and exterior repairs described.","vacant_flag":false,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:30.332585-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/76001661.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/76001661/458ae3dd2b-800.webp","url_1600":"https://nationalhistoricalregister.com/media/76001661/458ae3dd2b-1600.webp","licence":"Public domain","author":"Smallbones","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Commandants_Quarters_PNS.JPG\" rel=\"noopener\">Smallbones</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Commandants_Quarters_PNS.JPG"},"district":{"nrhp_refnum":"99001579","name":"Philadelphia Naval Shipyard Historic District","url":"https://nationalhistoricalregister.com/districts/pennsylvania/philadelphia-naval-shipyard-historic-district-99001579/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71997344","wikipedia":"https://en.wikipedia.org/wiki/Commandant%27s_Quarters_(Philadelphia,_Pennsylvania)","wikidata":"https://www.wikidata.org/wiki/Q5152133"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/philadelphia/commandants-quarters-76001661/"}