Delta Upsilon Fraternity House, Fraternity house in Champaign, United States.

The Delta Upsilon Fraternity House is a two-and-a-half-story Tudor Revival chapter house at 312 East Armory Avenue, built in English bond brick with a symmetrical facade. Architect Leonard Steube, then a University of Illinois graduate student, combined a brick gabled entrance with limestone details and extensive half-timbering. Limestone frames the windows, a triple-flue exterior chimney carries the fraternity's carved stone shield, and an open porch rests on two hexagonal columns.

Delta Upsilon's Illinois chapter was chartered in 1905 and occupied several houses before building this one between 1926 and 1927 for $100,000. The fraternity has occupied it continuously since, and it was listed on the National Register of Historic Places on May 21, 1990. Renovation work was underway during the 2024–2025 academic year.

Delta Upsilon began in 1834 at Williams College as an anti-secret society, and the Illinois chapter was chartered in 1905. Above the original wooden door, a limestone shield carries the Greek letters ΔΥ, and the fraternity's shield is carved into the chimney face.

The house is located in the heart of the campus and is easily accessible on foot. Keep in mind that this is an active residential building and access may be limited to certain times.

The property maintains continuous occupation by the Delta Upsilon organization, preserving its original purpose as a fraternity residence.