{"nrhp_refnum":"90000752","name":"Alpha Delta Phi Fraternity House","other_names":["Illinois Chapter House of Alpha Delta Phi"],"category":"building","location":{"address":"310 E. John St.","address_restricted":false,"city":"Champaign","county":"Champaign County","state":"IL","lat":40.10926193200004,"lon":-88.23381425399998,"geom_source":"nps_gis"},"listed_date":"1990-05-21","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture","Education"],"significance_levels":["local"],"summary":{"what_it_is":"A three-story Tudor Revival fraternity house of red brick and limestone at 310 East John Street in Champaign, Illinois, near the University of Illinois campus. It was built in 1924-1925 and designed by architect Ralph W. Varney.","why_significant":"The nomination argues it is one of the most intact examples of the fraternity or sorority house property type on the Urbana-Champaign campus, reflecting the Greek Letter Society movement and its role in student housing (Criterion A). It is also an excellent and elaborate example of formal Tudor Revival architecture (Criterion C).","narrative":"Built in 1924-1925 at 310 East John Street in Champaign, this fraternity house was home to the Illinois Chapter of Alpha Delta Phi, which cost about $70,000 to build and ranked among the largest Greek houses on the University of Illinois campus. Architect Ralph W. Varney designed it in the formal Tudor Revival manner, using red brick, limestone quoins, parapeted gables, oriel windows, tall chimneys and a slate roof. Inside, a three-story living room with an exposed timber truss roof resembles a Tudor banquet hall, and an oval lobby connects to the dining room. The house was featured in The Architectural Forum in December 1925. It is listed as an intact example of a fraternity house within a group of campus Greek houses, reflecting how such houses became the main form of organized student housing at the university. The period of significance runs from 1925 to 1940, and the building has kept its original floor plan and exterior.","period_of_significance":"1925 - 1940","architect_builder":"Varney, Ralph W.: Architect","architectural_style":"Tudor Revival","criteria":["A","C"],"status_note":"Still used as fraternity housing, with minor exterior material changes and interior modifications for building and life-safety codes.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:35.945334-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/79/8907/28890779/content/electronic-records/rg-079/NPS_IL/90000752.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/90000752/8fb9c507cc-800.webp","url_1600":"https://nationalhistoricalregister.com/media/90000752/8fb9c507cc-1600.webp","licence":"Public domain","author":"Smallbones","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Alpha_Delta_Phi_uiuc.JPG\" rel=\"noopener\">Smallbones</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Alpha_Delta_Phi_uiuc.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/28890779","wikipedia":"https://en.wikipedia.org/wiki/Alpha_Delta_Phi_Fraternity_House_(Champaign,_Illinois)","wikidata":"https://www.wikidata.org/wiki/Q20710361"},"indexable":true,"url":"https://nationalhistoricalregister.com/illinois/champaign-county/alpha-delta-phi-fraternity-house-90000752/"}