{"nrhp_refnum":"84003865","name":"Arbor Hill Historic District-Ten Broeck Triangle (Boundary Increase)","other_names":["See Also:Arbor Hill Historic District--Ten Broeck Triangle"],"category":"district","location":{"address":"Roughly Ten Broeck Pl., 1st, 2nd, and Swan Sts.","address_restricted":false,"city":"Albany","county":"Albany County","state":"NY","lat":42.65631505250005,"lon":-73.75179972351161,"geom_source":"nps_gis"},"listed_date":"1984-09-29","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A residential historic district in Albany, New York, covering about six blocks of the Arbor Hill neighborhood. This boundary increase expands the 1978 Ten Broeck Historic District to roughly 34 acres and renames it Arbor Hill Historic District.","why_significant":"The nomination argues that the Ten Broeck Triangle's history is closely tied to the neighboring streets and is best understood within the overall development of Arbor Hill. The district keeps the intact remnant of a neighborhood that developed between 1830 and 1910. It holds a range of nineteenth-century styles, mainly Greek Revival, Italianate and Romanesque.","narrative":"Arbor Hill in Albany is a residential neighborhood north of downtown and west of North Pearl Street. It was surveyed and subdivided as early as 1764 and became a distinct neighborhood in the 1830s, with modest detached houses. After mid-century the eastern part was reshaped by two parks, a Gothic church and fashionable townhouses, forming the Ten Broeck Triangle, listed in 1978. This boundary increase adds about 120 structures on First, Second and North Swan Streets, Ten Broeck Place and part of North Hawk Street, bringing the total to roughly 220 contributing elements. The added buildings are mostly attached and semi-detached houses, with some mixed commercial buildings and a former school. Simple Greek Revival and Italianate designs predominate, dating from about 1840 to 1910. Land west of North Swan Street was left out because of heavy demolition and alteration. The expanded district was renamed Arbor Hill, a name used for the area throughout the nineteenth century.","period_of_significance":"1830-1910","architect_builder":"Various","architectural_style":"Greek Revival, Italianate, Romanesque and Gothic rowhouses and detached houses, 1840-1910","criteria":[],"status_note":"Mixed condition from excellent to deteriorated. Many buildings are altered, and extensive demolition has occurred west of North Swan Street, which is excluded. Uses include private residence, commercial, religious, educational and museum.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:50:43.567937-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_NY/84003865.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/84003865/7cacaff83b-800.webp","url_1600":"https://nationalhistoricalregister.com/media/84003865/7cacaff83b-1600.webp","licence":"CC BY-SA 3.0","author":"UpstateNYer","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Ten_Broek_Triangle.jpg\" rel=\"noopener\">UpstateNYer</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:Ten_Broek_Triangle.jpg"},"district":{"nrhp_refnum":"88001445","name":"Clinton Avenue Historic District","url":"https://nationalhistoricalregister.com/districts/new-york/clinton-avenue-historic-district-88001445/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75316163","wikipedia":"https://en.wikipedia.org/wiki/Arbor_Hill_Historic_District%E2%80%93Ten_Broeck_Triangle","wikidata":"https://www.wikidata.org/wiki/Q4784761"},"indexable":true,"url":"https://nationalhistoricalregister.com/new-york/albany-county/arbor-hill-historic-district-ten-broeck-triangle-boundary-increase-84003865/"}