Mayo Clinic offers a housing option for Summer III Nursing Externship participants from across the country at 318 Commons — a nine-story coeducational apartment building that houses a total of 237 residents. Most residents of 318 Commons are University of Minnesota Rochester students.

Located in downtown Rochester, Minnesota, 318 Commons is just a few blocks from Mayo Clinic's downtown campus and walking distance to many restaurants, attractions, the Rochester YMCA and the Mayo Civic Center.