{"nrhp_refnum":"80002755","name":"Estabrook Octagon House","other_names":[],"category":"building","location":{"address":"8 River St.","address_restricted":false,"city":"Hoosick Falls","county":"Rensselaer County","state":"NY","lat":42.896466006000026,"lon":-73.35249170799995,"geom_source":"nps_gis"},"listed_date":"1980-02-08","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A two-story octagonal house at 8 River Street in Hoosick Falls, Rensselaer County, New York, built in 1853-54 by Ezra Estabrook with help from his father and brother.","why_significant":"It is presented as a prime example of the octagonal style popularized by Orson S. Fowler in the 1850s. The builders followed nearly all of Fowler's recommendations from his book A Home for All. It survives as one of the few octagon houses built in such strict adherence to his advice, with very few interior alterations.","narrative":"Built in 1853-54 at 8 River Street in Hoosick Falls, this two-story octagonal house was raised by Ezra Estabrook, assisted by his father and brother. Its walls are grout mixed with Rosendale cement and covered with stucco, and a hipped roof rises to a small cupola, with dormers, dentiled bargeboards and wood cresting. Inside, four large rooms on each floor surround a central staircase, while smaller angular spaces serve as closets, pantries and baths. The design follows Orson S. Fowler's book A Home for All, which promoted eight-sided houses. Estabrook kept a diary during construction, noting that about one foot of concrete wall was poured each day between wooden forms. The builders departed from Fowler in one respect, choosing locally produced natural cement and coarse gravel over lime for the walls. Descendants of Estabrook lived in the house until 1943. It is valued as one of the few octagons built in such close adherence to Fowler's recommendations, with few interior changes.","period_of_significance":"1800-1899 (specific dates 1853-54)","architect_builder":"Ezra Estabrook","architectural_style":"Octagon style","criteria":[],"status_note":"Occupied private residence; described as unaltered, on its original site, and in good condition, with very few interior alterations.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:50:39.290724-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_NY/80002755.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/80002755/61b0e6f09a-800.webp","url_1600":"https://nationalhistoricalregister.com/media/80002755/61b0e6f09a-1600.webp","licence":"CC BY-SA 3.0","author":"Daniel Case","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Estabrook_Octagon_House,_Hoosick_Falls,_NY.jpg\" rel=\"noopener\">Daniel Case</a>, <a href=\"https://creativecommons.org/licenses/by-sa/3.0\" rel=\"license noopener\">CC BY-SA 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Estabrook_Octagon_House,_Hoosick_Falls,_NY.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75321222","wikipedia":"https://en.wikipedia.org/wiki/Estabrook_Octagon_House","wikidata":"https://www.wikidata.org/wiki/Q5400005"},"indexable":true,"url":"https://nationalhistoricalregister.com/new-york/rensselaer-county/estabrook-octagon-house-80002755/"}