Heffron Hall is a residence hall located on the campus of Saint Mary's University of Minnesota, in Winona, Minnesota. Built in 1920, was the second major building in the early history of Saint Mary's College. The building honors the founder of Saint Mary’s, Roman Catholic Bishop Patrick Richard Heffron of the Roman Catholic Diocese of Winona. It houses 93 co-ed sophomore through senior students. Rooms are uncarpeted with hardwood floors, beautiful woodwork, have a sink in each room, and are approximately 8.5’ x 13.5’. The hall has two TV lounges, one kitchen, and laundry facilities for student use. The fourth floor of Heffron was renovated in 2002. The second and third floors were renovated in 2003.