{"nrhp_refnum":"92001261","name":"Main Street Historic District","other_names":["Business District","Downtown"],"category":"district","location":{"address":"Roughly bounded by Eighth, Washington, Fifth and West Sts.","address_restricted":false,"city":"Genoa","county":"Ottawa County","state":"OH","lat":41.51832875000005,"lon":-83.35861339135066,"geom_source":"nps_gis"},"listed_date":"1992-09-22","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Commerce","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A commercial historic district in downtown Genoa, Clay Township, Ottawa County, Ohio, centered on the 500 and 600 blocks of Main Street with adjacent Washington, 6th and 8th Street properties. It has 33 contributing and 2 noncontributing buildings dating from 1867 to 1937.","why_significant":"The district is argued to represent the mid-19th to early 20th century evolution of a small Ohio village business district, mixing commercial, residential, transportation, industrial, civic and governmental uses. It is also noted for small-scale brick and limestone or limestone by-product commercial buildings and for the influence of the railroad, interurban and automobile. It meets Criteria A and C.","narrative":"Genoa's downtown core in Ottawa County, Ohio, is a compact district of 35 buildings, mostly one- and two-story brick and cement block storefronts along the 500 and 600 blocks of Main Street. Related structures nearby include a frame lumber yard, a limestone former interurban power station, a Grange Hall, a relocated 1856 schoolhouse and the old railroad bed. Buildings date from 1867 to 1937, with several from the early 1900s following a 1906 fire. Many show Italianate bracketed or corbelled cornices, while others reflect plain early 20th century commercial design. The district was recognized as a well-preserved example of a small Ohio village business center where shops, civic buildings, industry and transportation sat side by side. Limestone quarried locally shaped both the town's economy and its building materials, and the railroad, interurban line and automobile dealerships mark successive eras of change. A group of small, finely proportioned one-story brick blocks from the 1890s sets the village apart from larger neighbors.","period_of_significance":"1867 - 1937","architect_builder":null,"architectural_style":"Italianate/Commercial Style","criteria":["A","C"],"status_note":"Architectural integrity is described as high with minimal alterations, mostly remodeled storefronts. Commercial and social uses continue today, though the railroad and interurban lines are gone.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:53:14.616037-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/92001261.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71990825","wikipedia":null,"wikidata":null},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/ottawa-county/main-street-historic-district-92001261/"}