{"nrhp_refnum":"80003147","name":"Federal Building","other_names":[],"category":"building","location":{"address":"18 N. Phelps St.","address_restricted":false,"city":"Youngstown","county":"Mahoning County","state":"OH","lat":41.10082633800005,"lon":-80.65076752999994,"geom_source":"nps_gis"},"listed_date":"1980-02-08","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Commerce","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A four-story brick office building with ground-floor commercial fronts at 18 North Phelps Street, Youngstown, Ohio, built in 1898-1899 and designed by Daniel Burnham.","why_significant":"It is described as the oldest of the early office buildings near Central Square. It was built for the offices of Youngstown Sheet and Tube and later housed commercial and professional offices, including many physicians. It was designed by Daniel Burnham, a major American architect, and is related in design to the nearby Wick Building.","narrative":"Located at 18 North Phelps Street, one short block west of Central Square in Youngstown, this four-story office building dates to 1898-1899. It has a steel frame, a concrete foundation and brick walls articulated with arcading. Each rank of plain rectangular windows is topped by a round-arched one, and a modest dentilled and bracketed cornice marks the roofline. The ground-floor commercial fronts have mostly been re-faced. The building was first constructed to house the offices of Youngstown Sheet and Tube, one of the city's major companies, and later held commercial and professional offices, many of them physicians. It is identified as the oldest of the early office buildings around Central Square. Daniel Burnham, a nationally prominent architect, designed it. It faces the Wick Building, which shares its architect and is related to it in design. It is one of seven early office buildings at Central Square recognized together as a group of architecturally distinguished structures.","period_of_significance":"1898-1899","architect_builder":"Daniel Burnham","architectural_style":"Commercial Style","criteria":[],"status_note":"Used as an office building; condition listed as good inside and out, with ground-story fronts mostly re-faced.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:53:11.868115-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/80003147.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/80003147/bebe84af00-800.webp","url_1600":"https://nationalhistoricalregister.com/media/80003147/bebe84af00-1600.webp","licence":"CC BY-SA 3.0","author":"BFDhD (talk)","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Federal_Bldg.JPG\" rel=\"noopener\">BFDhD (talk)</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:Federal_Bldg.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71985812","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q138565171"},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/mahoning-county/federal-building-80003147/"}