{"nrhp_refnum":"75001491","name":"Troy Public Square","other_names":[],"category":"district","location":{"address":"Property surrounding jct. of Main and Market Sts.","address_restricted":false,"city":"Troy","county":"Miami County","state":"OH","lat":40.03941630150004,"lon":-84.2028515871696,"geom_source":"nps_gis"},"listed_date":"1975-06-30","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Community Planning and Development","Commerce","Architecture"],"significance_levels":["state"],"summary":{"what_it_is":"A commercial historic district centered on Troy Public Square in Troy, Miami County, Ohio, platted in 1808 as the Court House Square. It includes buildings facing the Square and along North Market, East Main, South Market and West Main Streets, covering about 9.69 acres.","why_significant":"The nomination describes the district as a mid-Victorian commercial center, citing a regional survey that calls it one of the best preserved groups of its kind in Ohio. It is significant for architecture, commerce, urban planning, transportation and local history. Troy was laid out as a county seat, and many 1840s to 1880s commercial buildings survive around the Square.","narrative":"Troy Public Square is the commercial center of the county seat of Miami County, Ohio. Laid out in 1807 and 1808 on the highest ground in town, it was originally a courthouse square and now functions as a traffic circle with a small fountain park. The nominated district takes in buildings facing the Square and the streets running from it. Thirty-three buildings contribute to its character, and seven are classed as intrusions. Most are painted brick, with boxed cornices, friezes and brackets. Key buildings include the Mayo-Harter Building of about 1848, the Buckeye Building of 1847, the Second Empire Coleman-Allen Building, the Dye and Dunlap Buildings of about 1871, the Lollis Hotel of 1854 and the Bee Hive Corner of 1874. Mayo's Hall, Troy's first theater, opened in 1854. The district was listed as an unusually well preserved group of mid-nineteenth-century commercial architecture, with local hopes that its historic character could support the downtown economy.","period_of_significance":"19th Century","architect_builder":null,"architectural_style":"Mid-Victorian commercial, including Italianate, Second Empire and Eastlake details","criteria":[],"status_note":"Condition is marked excellent but altered. Many storefronts have been modernized. Some buildings are under renovation or threatened, and the Dye Building was recently abandoned by a retail tenant.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:53:09.500609-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/75001491.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/75001491/293cda3677-800.webp","url_1600":"https://nationalhistoricalregister.com/media/75001491/293cda3677-1600.webp","licence":"Public domain","author":null,"credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Troy-ohio-traffic-circle.jpg\" rel=\"noopener\">Unknown author</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Troy-ohio-traffic-circle.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71990313","wikipedia":"https://en.wikipedia.org/wiki/Troy_Public_Square","wikidata":"https://www.wikidata.org/wiki/Q28153361"},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/miami-county/troy-public-square-75001491/"}