{"nrhp_refnum":"71000556","name":"Troy Gas Light Company","other_names":["Gasholder House"],"category":"building","location":{"address":"NW corner of Jefferson St. and 5th Ave.","address_restricted":false,"city":"Troy","county":"Rensselaer County","state":"NY","lat":42.72135175200003,"lon":-73.69018667599994,"geom_source":"nps_gis"},"listed_date":"1971-02-18","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry","Architecture"],"significance_levels":["state"],"summary":{"what_it_is":"A circular brick gasholder house at the northwest corner of Jefferson Street and Fifth Avenue in Troy, Rensselaer County, New York, built in 1873 for the Troy Gas Light Company and designed by Frederick A. Sabbaton.","why_significant":"It is one of the few remaining examples of an industrial building type once common in urban areas. It is an imposing structure from a significant period in Troy's history and reflects the company that held a monopoly on illuminating gas manufacture in the city. The significance areas checked are architecture and industry.","narrative":"Built in 1873, this circular brick gasholder house in Troy, New York, once sheltered an iron gasholder used to store coal gas for the Troy Gas Light Company. The single interior space rises about 46 feet within brick bearing walls laid in American bond, supported by a cast iron roof structure under a low dome of galvanized metal panels and a circular cupola. The holder inside was a telescoping two-lift type about 100 feet across with a capacity of 333,000 cubic feet. Frederick A. Sabbaton, the company's superintendent and a well-known gas engineer, designed it. Gasholder houses protected the iron holder from weather and let it be built of thinner iron. The company first supplied Troy with illuminating gas in 1848 and held a monopoly until 1875. The building is among the few surviving examples of its type. The holder has been removed, though guide rails and pulleys remain, and the building is now used for storage.","period_of_significance":"19th Century (specific date 1873)","architect_builder":"Frederick A. Sabbaton","architectural_style":null,"criteria":[],"status_note":"Condition listed as good and altered; the iron gas holder has been removed, the south entranceway and governor's room removed, and windows bricked in. Used for storage; exterior unrestricted, interior restricted.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:50:39.440087-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_NY/71000556.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/71000556/f02706a821-800.webp","url_1600":"https://nationalhistoricalregister.com/media/71000556/f02706a821-1600.webp","licence":"Public domain","author":"Not specified on LOC website","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Troy_Gas_Light_Company,_Gasholder_House,_Jefferson_Street_%26_Fifth_Avenue,_Troy_(Rensselaer_County,_New_York).jpg\" rel=\"noopener\">Not specified on LOC website</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Troy_Gas_Light_Company,_Gasholder_House,_Jefferson_Street_%26_Fifth_Avenue,_Troy_(Rensselaer_County,_New_York).jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75321311","wikipedia":"https://en.wikipedia.org/wiki/Troy_Gas_Light_Company","wikidata":"https://www.wikidata.org/wiki/Q12071535"},"indexable":true,"url":"https://nationalhistoricalregister.com/new-york/rensselaer-county/troy-gas-light-company-71000556/"}