{"nrhp_refnum":"93000705","name":"Rassapeague","other_names":["Francis C. Huntington and Susan Butler Huntington Estate"],"category":"building","location":{"address":"Long Beach Rd., S side","address_restricted":false,"city":"Nissequogue","county":"Suffolk County","state":"NY","lat":40.915645453500076,"lon":-73.18139289351342,"geom_source":"nps_gis"},"listed_date":"1993-08-09","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Entertainment/Recreation","Architecture","Social History"],"significance_levels":["local"],"summary":{"what_it_is":"Rassapeague is a roughly twenty-acre estate on a promontory overlooking Stony Brook Harbor in Nissequogue, Suffolk County, New York. Its Italianate farmhouse dates from about 1865 and was expanded in 1915, and the estate includes three support buildings.","why_significant":"The nomination presents Rassapeague as a mid-nineteenth century gentleman's farm that was converted around 1915 into a country estate for a member of the extended Smith family, who dominated Stony Brook Harbor socially and architecturally. Architect Lawrence Smith Butler enlarged the earlier house with a service wing, a porch and a large harbor-facing window, and added restrained Colonial Revival detailing without obscuring the original Italianate core. The estate retains its dependencies and part of its early twentieth century landscape.","narrative":"Rassapeague is a waterfront estate of about twenty acres on the west side of Stony Brook Harbor in Nissequogue, New York. Its core is a two-story clapboard Italianate farmhouse built around 1865 by Thomas S. Seabury, a nephew of the painter William Sidney Mount. The farm later became known for its vineyards and a winery. In 1915 architect Lawrence Smith Butler redesigned the property for his sister and brother-in-law, Susan Butler Huntington and Francis Cleaveland Huntington. He added a service wing, a porch and a large window facing the water, and applied restrained Colonial Revival detailing while leaving the earlier house largely intact. The change reflected a wider pattern on the harbor, where working farms became leisure estates oriented toward the water. A wine cellar, a barn and a cottage survive alongside the house, together with lawns sloping to the shore and wooded land to the west. The property was listed for its architecture and its place in the harbor's estate history.","period_of_significance":"c1865-c1915","architect_builder":"Ford, Butler and Oliver (1915)","architectural_style":"Italianate; Colonial Revival","criteria":["A","C"],"status_note":"The house is described as well maintained and retaining high integrity, with its dependencies and grounds intact; it remains a single dwelling.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:51:50.776086-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_NY/93000705.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/93000705/129fdb2e00-800.webp","url_1600":"https://nationalhistoricalregister.com/media/93000705/129fdb2e00-1600.webp","licence":"CC BY-SA 4.0","author":"DanTD","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Driveway_to_Rassapeague.jpg\" rel=\"noopener\">DanTD</a>, <a href=\"https://creativecommons.org/licenses/by-sa/4.0\" rel=\"license noopener\">CC BY-SA 4.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Driveway_to_Rassapeague.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75314983","wikipedia":"https://en.wikipedia.org/wiki/Rassapeague","wikidata":"https://www.wikidata.org/wiki/Q7295214"},"indexable":true,"url":"https://nationalhistoricalregister.com/new-york/suffolk-county/rassapeague-93000705/"}