{"nrhp_refnum":"75001431","name":"Ferris, Eliphalet, House","other_names":["See Also:Mariemont Historic District"],"category":"building","location":{"address":"3915 Plainville Rd.","address_restricted":false,"city":"Mariemont","county":"Hamilton County","state":"OH","lat":39.147197436000056,"lon":-84.37834054099994,"geom_source":"nps_gis"},"listed_date":"1975-05-29","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["state"],"summary":{"what_it_is":"A two-and-a-half-story red brick house at 3915 Plainville Road in Mariemont, Hamilton County, Ohio, built about 1802-1812 for farmer Eliphalet Ferris, with a one-and-a-half-story gable-roofed addition on the east side.","why_significant":"The nomination presents the house as one of the oldest structures in Spencer Township and one of the first permanent structures in Hamilton County. It is nominated for its architecture. It was also used as construction headquarters for the planned community of Mariemont in the 1920s.","narrative":"Built about 1802-1812, this red brick house at 3915 Plainville Road in Mariemont is counted among the oldest buildings in Spencer Township and among the first permanent structures in Hamilton County. Eliphalet Ferris, born in Greenwich, Connecticut, moved west with his brothers and farmed land that is now part of Mariemont and Fairfax. The main block has two and a half stories, a gable roof, interior end chimneys, and a south front laid in Flemish bond. A one and a half story addition extends to the east. Inside, a side hall plan, fireplaces with flanking cupboards, white pine floors and bead and butt doors survive. The house served as a residence until 1923, when it became construction headquarters for the planned community of Mariemont. It was later restored by the local Daughters of the American Revolution and used as an antique shop. Its listing rests on its architectural importance and early date.","period_of_significance":"1802-1812","architect_builder":null,"architectural_style":"Federal","criteria":[],"status_note":"Described as in good condition and altered; at the time of nomination it was occupied by an architect's office and an educational research firm.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:53:09.755975-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/75001431.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/75001431/766438f6b1-800.webp","url_1600":"https://nationalhistoricalregister.com/media/75001431/766438f6b1-1600.webp","licence":"Public domain","author":"Nyttend","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Eliphalet_Ferris_House_in_color.jpg\" rel=\"noopener\">Nyttend</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Eliphalet_Ferris_House_in_color.jpg"},"district":{"nrhp_refnum":"07000431","name":"Village of Mariemont","url":"https://nationalhistoricalregister.com/districts/ohio/village-of-mariemont-07000431/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71988997","wikipedia":"https://en.wikipedia.org/wiki/Eliphalet_Ferris_House","wikidata":"https://www.wikidata.org/wiki/Q630640"},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/hamilton-county/ferris-eliphalet-house-75001431/"}