{"nrhp_refnum":"02001322","name":"Dubois-Sarles Octagon","other_names":[],"category":"building","location":{"address":"16 South St.","address_restricted":false,"city":"Marlboro","county":"Ulster County","state":"NY","lat":41.60052965700004,"lon":-73.97362223699997,"geom_source":"nps_gis"},"listed_date":"2002-11-15","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A two-story, eight-sided wood-and-brick-nogged house built about 1850 on South Street in the Village of Marlboro, Ulster County, New York, on a hillside lot overlooking the Hudson Valley. A non-contributing twentieth-century garage stands on the same lot.","why_significant":"The nomination argues the house is architecturally significant as a rare surviving example of the Octagon mode in the mid-Hudson Valley. It retains a high degree of integrity despite early alterations, and its side-hall plan resembles one illustrated in Orson Fowler's 1853 book. It is described as one of the village's most significant architectural landmarks.","narrative":"Built around 1850 on a hillside lot on South Street in Marlboro, this eight-sided, two-story house rests on a stone foundation and is framed with heavy posts filled with brick noggin. Its recessed main entrance, an original feature, lets the octagonal form stay free of porch projections. The Dubois family is believed to have built it. After the property was sold to the Sarles family in 1872, a fish-scale slate mansard roof, bracketed eaves and a rear kitchen wing were added. Inside, the side-hall plan differs from the cruciform layout of many octagons, and Greek Revival moldings, wide plank floors and some original plaster survive. The house was listed for its architecture. It is a rare and highly intact example in the mid-Hudson Valley of a short-lived house type popularized by Orson Fowler, and its interior arrangement resembles a plan Fowler published in 1853. It remains a single-family dwelling and a local landmark.","period_of_significance":"ca.1850 - ca.1870","architect_builder":null,"architectural_style":"Mid-19th Century/Octagon Mode","criteria":["C"],"status_note":"Still used as a single dwelling; the house has been altered over time (mansard roof, kitchen wing, replaced entry door and sidelights, asphalt siding) but retains much of its original floor plan.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:51:53.942515-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_NY/02001322.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/02001322/010719e93f-800.webp","url_1600":"https://nationalhistoricalregister.com/media/02001322/010719e93f-1600.webp","licence":"CC BY-SA 3.0","author":"Daniel Case","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Dubois-Sarles_Octagon,_Marlboro,_NY.jpg\" rel=\"noopener\">Daniel Case</a>, <a href=\"http://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:Dubois-Sarles_Octagon,_Marlboro,_NY.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75322604","wikipedia":"https://en.wikipedia.org/wiki/Dubois-Sarles_Octagon","wikidata":"https://www.wikidata.org/wiki/Q5311057"},"indexable":true,"url":"https://nationalhistoricalregister.com/new-york/ulster-county/dubois-sarles-octagon-02001322/"}