{"nrhp_refnum":"80000520","name":"Knollwood","other_names":[],"category":"district","location":{"address":"425 Salisbury St.","address_restricted":false,"city":"Worcester","county":"Worcester County","state":"MA","lat":42.283524500000055,"lon":-71.82617887246188,"geom_source":"nps_gis"},"listed_date":"1980-03-05","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["state","local"],"summary":{"what_it_is":"Knollwood is a historic district of about 15 acres on Salisbury Street in Worcester, Massachusetts. It preserves the core of the former 122-acre Lyman Gordon Estate: a main house, a second house, employee cottages, former stable buildings and open land, all built in 1914.","why_significant":"The Lyman Gordon House, designed by Little & Brown of Boston and based on French manor house architecture, is described as perhaps Worcester's grandest period house. The estate keeps its original outbuildings, garden walls, gate posts and tree-lined drives, so the planned estate landscape is still readable. It is also tied to Worcester industrialists Lyman Gordon, Lucius Knowles and Theodore Ellis.","narrative":"Knollwood is a former country estate on Salisbury Street in Worcester, now a district of about 15 acres. It was carved from the 122-acre estate of industrialist Lyman Gordon, a founder of Wyman & Gordon Co. The main house, built in 1914 by the Boston firm Little & Brown, is a stucco-covered, hip-roofed mansion modeled on French manor houses and approached by an allee of trees. Its ornamental iron canopy came from the W. A. Snow Iron Works and appeared in a 1915 trade catalogue. Around it survive a smaller second house, three employee cottages, two former stable and service buildings, garden walls, gate posts and tree-lined drives, all from the same design. Gordon died as the house neared completion. Later owners included Lucius Knowles of Crompton & Knowles Loom Works and art collector Theodore Ellis. Much of the land was subdivided for house lots, and since the early 1950s the main house has served as a girls' school. A 1954 school building is not considered contributing.","period_of_significance":null,"architect_builder":"Little & Brown of Boston, architects; W. A. Snow Iron Works of Boston made the iron and glass entry canopy","architectural_style":"Based on 17th and 18th century French manor house architecture; stucco-covered buildings with hip roofs","criteria":[],"status_note":"Main house and surrounding land used as a girls' school since the early 1950s; outbuildings are privately owned residences. The main house is unaltered apart from a one-storey garage.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:11:53.633495-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/52/7931/63793152/content/electronic-records/rg-079/NPS_MA/80000520.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/80000520/6eadf5a214-800.webp","url_1600":"https://nationalhistoricalregister.com/media/80000520/6eadf5a214-1600.webp","licence":"CC BY-SA 3.0","author":"Pvmoutside","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Knollwood.jpg\" rel=\"noopener\">Pvmoutside</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:Knollwood.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63793152","wikipedia":"https://en.wikipedia.org/wiki/Knollwood_(Worcester,_Massachusetts)","wikidata":"https://www.wikidata.org/wiki/Q6422991"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/worcester-county/knollwood-80000520/"}