{"nrhp_refnum":"83001671","name":"Eberhardt Mansion","other_names":[],"category":"building","location":{"address":"2746 Delaware Ave.","address_restricted":false,"city":"Kenmore","county":"Erie County","state":"NY","lat":42.95898301300008,"lon":-78.86971171199997,"geom_source":"nps_gis"},"listed_date":"1983-09-08","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A three-story Medina sandstone mansion at 2746 Delaware Avenue in the village of Kenmore, town of Tonawanda, Erie County, New York, built in 1893 to designs by Buffalo architect Cyrus K. Porter, with two later brick rear wings.","why_significant":"It is a distinctive and unique example of Richardsonian Romanesque residential design in the town of Tonawanda and a rare surviving work of architect Cyrus K. Porter. It was built for real estate developers Frederick and Louis Eberhardt, who envisioned Kenmore as an affluent suburb of Buffalo. With its twin demolished in 1977, it remains the key reminder of that effort and retains almost complete integrity of design.","narrative":"Built in 1893 at the corner of Delaware and Kenmore Avenues, this three-story mansion is faced in rusticated Medina sandstone and marked by a conical-roofed turret, a parapet gable and a covered porch. Buffalo architect Cyrus K. Porter designed it and Jacob Rickert built it for Frederick Eberhardt, who with his brother Louis developed real estate and hoped to create a planned suburb of large homes for Buffalo professionals. The brothers built identical twin houses as focal points for Kenmore, which they helped incorporate. Louis's house was demolished in 1977, leaving this one as the surviving reminder. It is considered the only Richardsonian Romanesque residence of its kind in the town of Tonawanda and a rare surviving work by Porter. Inside, oak woodwork, stained glass, tiled fireplaces and a carved staircase remain. Brick wings were added in 1923 and 1937 when the building served as a nursing home.","period_of_significance":"1800-1899","architect_builder":"Cyrus K. Porter (architect); Jacob Rickert (builder)","architectural_style":"Richardsonian Romanesque","criteria":[],"status_note":"Exterior little altered apart from two brick rear additions (1923 and 1937); converted to a nursing home in the 1920s with interior details intact; at the time of the form used by a coin brokerage firm, with the two non-contributing wings empty.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:50:42.910764-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_NY/83001671.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/83001671/7ed9422b76-800.webp","url_1600":"https://nationalhistoricalregister.com/media/83001671/7ed9422b76-1600.webp","licence":"CC BY-SA 2.0","author":"Doug Kerr from Upstate New York","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Eberhardt_Mansion_Nov_09.jpg\" rel=\"noopener\">Doug Kerr from Upstate New York</a>, <a href=\"https://creativecommons.org/licenses/by-sa/2.0\" rel=\"license noopener\">CC BY-SA 2.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Eberhardt_Mansion_Nov_09.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75317605","wikipedia":"https://en.wikipedia.org/wiki/Eberhardt_Mansion","wikidata":"https://www.wikidata.org/wiki/Q5331809"},"indexable":true,"url":"https://nationalhistoricalregister.com/new-york/erie-county/eberhardt-mansion-83001671/"}