{"nrhp_refnum":"12001245","name":"Herold Building","other_names":["Kurtz Furniture"],"category":"building","location":{"address":"310 Prospect Ave.","address_restricted":false,"city":"Cleveland","county":"Cuyahoga County","state":"OH","lat":41.49809070100008,"lon":-81.69026666099995,"geom_source":"nps_gis"},"listed_date":"2013-01-29","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A four-story commercial block at 310 Prospect Avenue in downtown Cleveland, Ohio, built in 1906 and given a black structural glass façade around 1948.","why_significant":"The nomination argues it is an intact example of the small commercial building subtype on lower Prospect Avenue. It is also believed to be the only surviving example in downtown Cleveland of structural glass used to modernize an entire commercial façade in the 1930s and 1940s.","narrative":"Four stories tall, this commercial block at 310 Prospect Avenue sits on a historic retail corridor southeast of Cleveland's Public Square. It went up in 1906 for the Herold Brothers, who ran a barber supply business, and was first faced in brick. Later owners and tenants, including Kurtz Furniture from about 1920, changed its look more than once. Around 1948 the upper façade was covered in black structural glass panels that form vertical pilasters, set between older metal spandrel panels. A matching addition built next door about 1908 was separated from it around 1920 and is now a separate property. The building was listed as an intact example of a small commercial building of lower Prospect Avenue and as the only known surviving downtown Cleveland example of a whole façade modernized with structural glass. Structural glass products such as Vitrolite were widely promoted in the 1930s and 1940s for updating older storefronts in the Art Moderne spirit.","period_of_significance":"1906-1948","architect_builder":null,"architectural_style":"Modern Movement: Moderne","criteria":["C"],"status_note":"The ground-floor storefront and canopy are non-historic and the canopy is in poor condition. The upper three floors remain relatively unaltered. The form lists the current function as work in progress.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:52:06.984721-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/12001245.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/12001245/c4bfcb4098-800.webp","url_1600":"https://nationalhistoricalregister.com/media/12001245/c4bfcb4098-1600.webp","licence":"Public domain","author":"Nyttend","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Herold_Building.jpg\" rel=\"noopener\">Nyttend</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Herold_Building.jpg"},"district":{"nrhp_refnum":"02000702","name":"Euclid Avenue Historic District","url":"https://nationalhistoricalregister.com/districts/ohio/euclid-avenue-historic-district-02000702/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71984646","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q137682415"},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/cuyahoga-county/herold-building-12001245/"}