{"nrhp_refnum":"98000366","name":"Broad Exchange Building","other_names":["The Exchange"],"category":"building","location":{"address":"25 Broad St.","address_restricted":false,"city":"New York","county":"Manhattan","state":"NY","lat":40.70598935800007,"lon":-74.01106839799996,"geom_source":"nps_gis"},"listed_date":"1998-04-13","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture","Commerce"],"significance_levels":["local"],"summary":{"what_it_is":"A 21-story, T-shaped former office building at 25 Broad Street at Exchange Place in lower Manhattan, designed by Clinton & Russell and completed in 1902.","why_significant":"The nomination argues it is significant in architecture and commerce as a distinctive early-20th-century commercial building and an early example of the tall building form in lower Manhattan. It reflects the speculative office building boom and is an important work of Clinton & Russell. When completed it was considered the largest office building with the highest real estate value yet built in Manhattan.","narrative":"Rising 21 stories at the corner of Broad Street and Exchange Place in lower Manhattan, this steel-frame building was designed by Clinton & Russell and finished in 1902. Its facades follow an Italian palazzo model, with a rusticated granite base, a buff brick body trimmed in terra cotta, and a granite attic under a copper cornice. Doric porticos mark the Broad Street and Exchange Place entrances, and the lobby is clad in white marble. Commissioned in 1900 by the Alliance Realty Company as a speculative venture and built by the George A. Fuller Company, it was regarded at completion as the largest and most valuable office building in Manhattan, described as a town under a single roof. It illustrates the steel frame, elevator and caisson foundation technologies that made tall buildings possible, and the pressure of high land values on owners to build upward. Its upper floors were being converted to apartments in the 1990s.","period_of_significance":"1900-02","architect_builder":"Clinton & Russell (architects); George A. Fuller Company (builder)","architectural_style":"Late Victorian: Italian Renaissance","criteria":["A","C"],"status_note":"Upper floors (second through twentieth and penthouse) were being converted to 342 apartments as of 1996; the first-floor lobby and commercial spaces retain original features.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:51:50.043642-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_NY/98000366.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/98000366/f2bf81efaa-800.webp","url_1600":"https://nationalhistoricalregister.com/media/98000366/f2bf81efaa-1600.webp","licence":"CC BY-SA 3.0","author":"Gryffindor","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Broad_Exchange_building_001.JPG\" rel=\"noopener\">Gryffindor</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:Broad_Exchange_building_001.JPG"},"district":{"nrhp_refnum":"07000063","name":"Wall Street Historic District","url":"https://nationalhistoricalregister.com/districts/new-york/wall-street-historic-district-07000063/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75319309","wikipedia":"https://en.wikipedia.org/wiki/Broad_Exchange_Building","wikidata":"https://www.wikidata.org/wiki/Q921911"},"indexable":true,"url":"https://nationalhistoricalregister.com/new-york/manhattan/broad-exchange-building-98000366/"}