{"nrhp_refnum":"66000780","name":"Olmsted, Frederick Law, House, National Historic Site","other_names":["Frederick Law Olmsted National Historic Site"],"category":"building","location":{"address":"99 Warren St.","address_restricted":false,"city":"Brookline","county":"Norfolk County","state":"MA","lat":42.32516969100004,"lon":-71.13242249671822,"geom_source":"nps_gis"},"listed_date":"1966-10-15","is_nhl":true,"nhl_designated_date":"1963-05-23","areas_of_significance":["Community Planning and Development","Landscape Architecture"],"significance_levels":["national"],"summary":{"what_it_is":"The Frederick Law Olmsted House, known as Fairsted, is the home and office of landscape architect Frederick Law Olmsted at 99 Warren Street, Brookline, Massachusetts. It sits on about 1.75 acres and includes the house, office wings, a barn and a shed. Olmsted bought the former Joshua Clark house in 1883.","why_significant":"The nomination argues that Olmsted was the nation's most comprehensive environmental planner and designer. His work shaped urban parks, parkways, suburban communities, campuses, a national park system and forestry education. The property, which he kept until his death in 1903, was his base for private practice, and the office wings were enlarged as the firm grew.","narrative":"Fairsted, at 99 Warren Street in Brookline, Massachusetts, was the home and professional headquarters of Frederick Law Olmsted from 1883 until his death in 1903. He acquired the Joshua Clark house on condition that he build a cottage for the Clark sisters. Olmsted converted the northeast parlor into an office in 1887 and added a two-story office and drafting wing in 1889. Further additions followed in 1899, 1901 and 1911, including a brick vault for drawing storage. A barn behind the house later held a modelling shop, carpentry shop and archive areas. The nomination describes Olmsted as the nation's most comprehensive environmental planner. His designs include Central Park with Calvert Vaux, major city parks, campuses, residential communities and the Biltmore estate grounds. His projects became prototypes for planned environments across the country. The firm's modest headquarters served one of the most famous men in the United States.","period_of_significance":"1883-1903","architect_builder":null,"architectural_style":null,"criteria":[],"status_note":"The form marks the property as occupied, in good condition and privately owned; the barn is used for storage.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 01:59:22.369767-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/5/7938/63793805/content/electronic-records/rg-079/NPS_MA/66000780_NHL.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/66000780/cc80670642-800.webp","url_1600":"https://nationalhistoricalregister.com/media/66000780/cc80670642-1600.webp","licence":"CC BY-SA 3.0","author":"Original uploader was Daderot at en.wikipedia","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Frederick_Law_Olmsted_National_Historical_Site,_August_2005.JPG\" rel=\"noopener\">Original uploader was Daderot at en.wikipedia</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:Frederick_Law_Olmsted_National_Historical_Site,_August_2005.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63793805","wikipedia":"https://en.wikipedia.org/wiki/Frederick_Law_Olmsted_National_Historic_Site","wikidata":"https://www.wikidata.org/wiki/Q5498250"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/norfolk-county/olmsted-frederick-law-house-national-historic-site-66000780/"}