{"nrhp_refnum":"76001596","name":"Old Heidelberg Apartments","other_names":[],"category":"building","location":{"address":"Braddock Ave. at Waverly St.","address_restricted":false,"city":"Pittsburgh","county":"Allegheny County","state":"PA","lat":40.444039813000074,"lon":-79.89562359399997,"geom_source":"nps_gis"},"listed_date":"1976-05-04","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A three-story apartment complex with two-story side wings and an attached two-story building with attic on Braddock Avenue in East Liberty, Pittsburgh, Allegheny County, Pennsylvania. The main building was completed in 1905, with a second phase in 1908.","why_significant":"The nomination argues the complex is one of the few early modern buildings in the area, set against the prevailing classical, Georgian and Tudor revival buildings. Its simplified horizontal form, smooth Portland cement coating, absence of moldings and exposed I-beam porches are presented as an early appearance of modern design in the United States and Pennsylvania. It is also described as an early attempt at logically planned suburban housing.","narrative":"Built in 1905 and extended in 1908 on Braddock Avenue in East Liberty, Pittsburgh, the Old Heidelberg Apartments were designed by Frederick G. Schiebler, Jr. The main three-story building has a steeply pitched roof with gables set perpendicular to the street, two forward-projecting central sections with hipped roofs, and red tile roofing. Its brick walls are covered in two coats of Portland cement, and it has few mouldings or ornaments, giving it a crisp, geometric look. Two porches with exposed I-beams were an unusual treatment for the period. A subtle Art Nouveau mushroom relief runs beneath the windows. The building is regarded as an early example of modern architecture in Pennsylvania, with a symmetrical plan and flat wall surfaces that the nomination relates to the European International Style. It is also seen as an early attempt at planned suburban housing.","period_of_significance":"1900-","architect_builder":"Frederick G. Schiebler, Jr. (architect)","architectural_style":"Proto-modern; early modern","criteria":["C"],"status_note":"The statement of significance says the apartments have been continuously occupied and well maintained, and are in very good condition.","vacant_flag":false,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:29.713017-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/76001596.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/76001596/f2efa4e336-800.webp","url_1600":"https://nationalhistoricalregister.com/media/76001596/f2efa4e336-1600.webp","licence":"Public domain","author":"User:Nyttend","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Old_Heidelberg_Apartments.jpg\" rel=\"noopener\">User:Nyttend</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Old_Heidelberg_Apartments.jpg"},"district":{"nrhp_refnum":"100003450","name":"Frick Park","url":"https://nationalhistoricalregister.com/districts/pennsylvania/frick-park-100003450/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71997746","wikipedia":"https://en.wikipedia.org/wiki/Old_Heidelberg_Apartments","wikidata":"https://www.wikidata.org/wiki/Q7084194"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/allegheny-county/old-heidelberg-apartments-76001596/"}