{"nrhp_refnum":"83004241","name":"Baird, Matthew, Mansion","other_names":[],"category":"building","location":{"address":"814 N. Broad St.","address_restricted":false,"city":"Philadelphia","county":"Philadelphia","state":"PA","lat":39.97525118300007,"lon":-75.15888579199998,"geom_source":"nps_gis"},"listed_date":"1983-12-29","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A four-story brick and brownstone urban mansion at 814 North Broad Street in North Philadelphia, built 1863-64, with an attached three-story back building and a two-story brick stable on Carlisle Street at the rear of the lot.","why_significant":"The nomination argues the house reflects Philadelphia's industrial growth in the nineteenth century through its owner, Matthew Baird, who rose from immigrant apprentice to owner of the Baldwin Locomotive Works. It also presents the house as an early example of the elegant residences built by industrialists along North Broad Street.","narrative":"Built in 1863-64 on the west side of North Broad Street, this four-story, nineteen-room brick mansion faces the street with brownstone trim and a slate mansard roof. Its design mixes Romanesque arches and corbel tables with Second Empire dormers and Italianate and Renaissance Revival detailing. The house was built for Matthew Baird, an Irish-born immigrant who began as a brickyard apprentice and later became chairman of the Baldwin Locomotive Works. The nomination credits him with inventing a device that reduced smoke from coal-burning locomotives, an improvement that helped build Baldwin's international reputation. The mansion is significant as one of the earliest large residences of Philadelphia's industrial families along North Broad Street, where manufacturers built elaborate homes in the late nineteenth century. Its rear wings and stable survive, though later alterations have changed many interior room plans and removed much of the original detailing.","period_of_significance":"1863-64","architect_builder":null,"architectural_style":"Eclectic design with Romanesque characteristics, Second Empire, and Italianate and Renaissance Revival elements; the stable is Italianate","criteria":[],"status_note":"Alterations include a replaced front door and removed interior detailing; the condition is marked fair and altered","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:32.672985-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/83004241.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/83004241/51931c4943-800.webp","url_1600":"https://nationalhistoricalregister.com/media/83004241/51931c4943-1600.webp","licence":"Public domain","author":"Smallbones","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Baird_Philly.JPG\" rel=\"noopener\">Smallbones</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Baird_Philly.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71997310","wikipedia":"https://en.wikipedia.org/wiki/Matthew_Baird_Mansion","wikidata":"https://www.wikidata.org/wiki/Q6790122"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/philadelphia/baird-matthew-mansion-83004241/"}