Many offices frequented by students can be found in the university's Columkille Administration Building, including the Business Office, the Office of the Registrar, Academic Advising, Financial Assistance, Admissions Office, and Student Success Programs.
Classrooms and administrative offices occupy the top floors of the building. On the ground floor, students dine a Hortencia's Café, and may visit the Interfaith Chapel. The second floor includes the entrance to Our Lady's Chapel, where weekly masses are celebrated. Listed on the National Register of Historic Places by the U.S. Department of the Interior, the building's cornerstone was laid in 1921.