{"nrhp_refnum":"99000874","name":"Clifton","other_names":[],"category":"building","location":{"address":"355 Bryant Ave.","address_restricted":false,"city":"Roslyn Harbor","county":"Nassau County","state":"NY","lat":40.81231433200003,"lon":-73.64698015299996,"geom_source":"nps_gis"},"listed_date":"1999-07-22","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture","Community Planning and Development"],"significance_levels":["local"],"summary":{"what_it_is":"A residential property at 355 Bryant Avenue in Roslyn Harbor, Nassau County, New York, centered on a Flemish Revival house built c. 1863 and designed by Frederick S. Copley, with a carriage house, boathouse and gazebo on about one acre facing Hempstead Harbor.","why_significant":"The nomination argues the house is a rare example of Flemish Revival architecture on Long Island and a well-preserved work of New York architect Frederick S. Copley, whose design was illustrated in national publications of the period. It is also significant for community planning and development as an outstanding example of a Roslyn Harbor estate, 1830-1930, with ties to neighboring Cedarmere and Willowmere.","narrative":"Clifton is a harbor-front residence on Bryant Avenue in Roslyn Harbor, built around 1863 to designs by Frederick S. Copley. Its two-and-a-half-story frame house features numerous Flemish gables, arched and ogee window and door surrounds, a slate roof and a wraparound veranda, with Gothic Revival detailing inside. A carriage house, a board-and-batten boathouse and a rustic gazebo stand on the roughly one-acre grounds. Plans for the house appeared in Woodward's Country Homes in 1865. Ann Eliza Cairns had it built as part of a bequest to her granddaughters, and it was probably rented until Rear Admiral William Emory's family took possession in 1876. John M. Demarest bought it in 1917, altered the house and hired Olmsted Associates to design the landscape. The property was listed as a rare Long Island example of Flemish Revival architecture, as the work of a notable architect, and as a representative Roslyn Harbor estate.","period_of_significance":"c. 1863-c. 1932","architect_builder":"Copley, Frederick S.","architectural_style":"Late Victorian / Victorian Eclectic (Flemish Revival with Gothic Revival detailing)","criteria":["A","C"],"status_note":"Still used as a single dwelling; the interior has been recently restored and rehabilitated.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:51:50.386405-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_NY/99000874.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/99000874/db9b41e427-800.webp","url_1600":"https://nationalhistoricalregister.com/media/99000874/db9b41e427-1600.webp","licence":"CC BY-SA 4.0","author":"Antony-22","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Clifton_House_2016.JPG\" rel=\"noopener\">Antony-22</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:Clifton_House_2016.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75313743","wikipedia":"https://en.wikipedia.org/wiki/Clifton_(Roslyn_Harbor,_New_York)","wikidata":"https://www.wikidata.org/wiki/Q5133167"},"indexable":true,"url":"https://nationalhistoricalregister.com/new-york/nassau-county/clifton-99000874/"}