{"nrhp_refnum":"86001721","name":"Cox, Richard, House","other_names":[],"category":"building","location":{"address":"Mill Rd.","address_restricted":false,"city":"Mattituck","county":"Suffolk County","state":"NY","lat":40.99876636800008,"lon":-72.55734810099995,"geom_source":"nps_gis"},"listed_date":"1986-08-21","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A two-story frame house with a contributing Stick style carriage barn on about 1.7 acres at the corner of Mill and Luther Roads in Mattituck, Suffolk County, New York. The house was built in 1829 (the description says 1826) in the Greek Revival style and enlarged in the 1870s.","why_significant":"The house is argued to be the finest Italianate style residence in the Mattituck area, reflecting the prosperity and changing tastes of the locally prominent Cox-Forman families. Its interior preserves finishes from each building phase, including a rare 1910 Arts & Crafts stair hall for eastern Long Island. It is also a well-known local landmark recalling the growth of Mattituck from about 1829 to about 1910.","narrative":"Overlooking Mattituck Inlet on Long Island's North Fork, this frame house began in 1829 as a Greek Revival residence built by Richard Cox, a farmer and drover who also built a tide-powered mill nearby and laid out Mill and Luther's Roads. In the 1870s the Cox-Forman family enlarged it in the Italianate manner, adding a cupola, scroll brackets, a wrap-around verandah and a porte-cochère. A Stick style carriage barn at the rear dates from the same period. In 1910 Xesia Forman remodelled the interior, adding a two-story, seven-sided Arts & Crafts stair hall with oak or chestnut paneling and a stained-glass skylight. Allan Forman, who founded the periodical The Journalist, inherited the house in 1908. The property was valued as the finest Italianate residence in the Mattituck area, as a local landmark, and for its surviving historic landscaping, which includes specimen trees and a boxwood garden.","period_of_significance":"1800-1899, 1900- (specific dates 1829, 1870, 1910)","architect_builder":null,"architectural_style":"Italianate (remodelled from Greek Revival), with Arts & Crafts interior and Stick style carriage barn","criteria":[],"status_note":"Described as in good condition, altered, on its original site; occupied as a private residence, with the carriage barn recently converted to a residence.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:50:44.849329-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_NY/86001721.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/86001721/9fe19c4bbe-800.webp","url_1600":"https://nationalhistoricalregister.com/media/86001721/9fe19c4bbe-1600.webp","licence":"CC BY-SA 3.0","author":"Americasroof","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Richard-cox-house.jpg\" rel=\"noopener\">Americasroof</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:Richard-cox-house.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75322077","wikipedia":"https://en.wikipedia.org/wiki/Richard_Cox_House","wikidata":"https://www.wikidata.org/wiki/Q7324940"},"indexable":true,"url":"https://nationalhistoricalregister.com/new-york/suffolk-county/cox-richard-house-86001721/"}