Alpha Delta Phi Fraternity House, United States historic place

The Alpha Delta Phi Fraternity House was a residential building for fraternity members at the University of Illinois in Champaign, constructed between 1924 and 1925 by architect Ralph W. Varney. The structure displayed Tudor Revival style architecture characterized by brick walls, decorative stone quoins and oriels, steep gable roof, and tall windows with stone mullions. Inside, the house featured a large living room with exposed beams, a Tudor-arched fireplace, and wrought iron fixtures.

The Alpha Delta Phi chapter formed at the University of Illinois in 1903 and built this house in 1924–25. Architect Ralph W. Varney designed it in the formal Jacobethan subtype of Tudor Revival. It joined the National Register of Historic Places on May 21, 1990. Empty by 2015, it was demolished in January 2018 for an apartment building.

The house stood at 40.10917, -88.23389 in Champaign, near the University of Illinois campus. It was demolished in January 2018, so nothing of the Tudor Revival structure remains; an apartment building now occupies the site. Visitors tracing the fraternity's history will find no marker or remnant there.

The house's Jacobethan design was deliberate: stone quoins and oriels decorated the brick exterior, and a steep gable roof carried gabled dormers, while half-timbering, common in informal Tudor Revival work, was left out entirely. The chapter itself had formed in 1903, two decades before the building went up.