{"nrhp_refnum":"14000480","name":"Central Avenue Historic District","other_names":[],"category":"district","location":{"address":"Central Ave.","address_restricted":false,"city":"Middletown","county":"Butler County","state":"OH","lat":39.51384047950003,"lon":-84.40182041077058,"geom_source":"nps_gis"},"listed_date":"2014-08-08","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture","Commerce"],"significance_levels":["local"],"summary":{"what_it_is":"A primarily residential historic district of sixteen structures (fifteen historic houses) along Central Avenue in the Dayton View area northwest of the Miami River and downtown Dayton, Ohio, built mostly in the late 19th and early 20th centuries.","why_significant":"The district is nominated for architecture and social history. It is presented as an outstanding example of Dayton's earliest suburban development, west of the Miami River, built for rising professionals and businessmen. Its Queen Anne houses, especially the two pivotal examples at 338 and 240 Central Avenue, are described as among the finest of their style in Dayton.","narrative":"Central Avenue Historic District is a short residential street in the Dayton View area, northwest of the Miami River and downtown Dayton, Ohio. It holds fifteen historic houses from the late nineteenth and early twentieth centuries, plus one apartment building counted as an intrusion. Styles include Queen Anne, Neoclassical, Italianate, and Jacobethan Revival, and many lots retain carriage houses at the rear, some of them elaborate. Large old maple trees shade the street. The district was nominated for its architecture and its role in social history. It represents Dayton's earliest suburban development, as population moved outward from the city center during a period of rapid growth and new urban amenities. Early residents included attorneys, company officers, and a school principal, part of a rising professional and business class. Two pivotal Queen Anne houses, at 338 and 240 Central Avenue, are called among the finest of their style in the city. Condition today ranges from excellent to deteriorated.","period_of_significance":"1800-1899, 1900-","architect_builder":null,"architectural_style":"Queen Anne, Neoclassical, Italianate, and Jacobethan Revival","criteria":[],"status_note":"Condition varies: some houses are in excellent condition, others show poor maintenance, and a few are significantly deteriorated. One apartment building is counted as an intrusion.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:52:07.544445-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/82001476.pdf"},"photo":null,"district":{"nrhp_refnum":"100008736","name":"Oakland Residential Historic District","url":"https://nationalhistoricalregister.com/districts/ohio/oakland-residential-historic-district-100008736/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":null,"wikipedia":null,"wikidata":null},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/butler-county/central-avenue-historic-district-14000480/"}