{"nrhp_refnum":"72001129","name":"Old City Hall","other_names":["County Court House","State House"],"category":"building","location":{"address":"Penn Sq.","address_restricted":false,"city":"Lancaster","county":"Lancaster County","state":"PA","lat":40.03807847500008,"lon":-76.30600229799995,"geom_source":"nps_gis"},"listed_date":"1972-06-30","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Politics/Government","Architecture"],"significance_levels":["state"],"summary":{"what_it_is":"A three-and-a-half-story brick public building on Penn Square in Lancaster, Pennsylvania, completed in 1797 as the city's public office and market-related building.","why_significant":"The nomination argues the building is significant for its Federal-period architecture, which survives in its exterior despite a 1924 restoration. It also cites its use as the state government offices from 1799 to 1812, when Lancaster was the state capital, and its role as the oldest building on Penn Square, the scene of many local historic events.","narrative":"Built of Flemish-bond brick with cut-stone accents, this three-and-a-half-story public building on Penn Square in Lancaster was completed in 1797. It was commissioned as a public office and stood on ground originally deeded to the city by Andrew Hamilton for a market. Its five-bay front, stone beltcourse, flat arches with keystones, and a pedimented entrance on the south side reflect the Federal style. The gable is extended to simulate massive chimneys, and a circular window appears in the east gable. From 1799 to 1812 the building housed Commonwealth offices while Lancaster was the state capital. Later it served as a city and county building, a Masonic lodge meeting hall, a post office, and a library. Alterations moved the main doors and reshaped the windows, and a 1924 restoration followed, but the building remains the oldest on the square and is valued for its surviving early architecture and civic history.","period_of_significance":"1797","architect_builder":null,"architectural_style":"Federal","criteria":["A","C"],"status_note":"Restored in 1924; main door and two east entrances converted to windows, and the interior woodwork largely lost to continuous use.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:30.016961-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/72001129.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/72001129/82ce713676-800.webp","url_1600":"https://nationalhistoricalregister.com/media/72001129/82ce713676-1600.webp","licence":"CC0","author":"Smallbones","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Old_City_Hall_Lancaster_PA.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:Old_City_Hall_Lancaster_PA.jpg"},"district":{"nrhp_refnum":"01000956","name":"Lancaster City Historic District","url":"https://nationalhistoricalregister.com/districts/pennsylvania/lancaster-city-historic-district-01000956/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71996115","wikipedia":"https://en.wikipedia.org/wiki/Old_City_Hall_(Lancaster,_Pennsylvania)","wikidata":"https://www.wikidata.org/wiki/Q7083691"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/lancaster-county/old-city-hall-72001129/"}