University College (UniCol), founded in 1969, is the largest residential hall at the University of Otago. It houses approximately 550 residents during the academic year. Originally consisting of two towers, North Tower and South Tower, it has since been expanded with the apprehension of a set of flats on Clyde street and then in 2004 with the Northern and Southern Annexes.
It is one of the most central colleges on the campus, situated beside the university's original buildings. Originally one tower (South Tower) housed males the other (North Tower) housed females, now however the towers are unisex, with students sharing all facilities including bathrooms and showers. Highlights throughout the year include O'Week, 'Bak-2-Skool' parties, Formal dinners, ski trips, Ball, 'Bad Taste' parties, Floor Missions, and Float parades.