Red Roof Inn is renovating all of their inns nationwide This location now features redesigned rooms with more comfort and added amenities such as T-Mobile wireless Internet access (daily fee may apply). Experience our coffeehouse-style service featuring fresh brewed, ground whole bean coffee. The Detroit - Plymouth Red Roof Inn is conveniently located midway between downtown Detroit and Ann Arbor. This Inn is just a short drive from all area attractions, including the University of Michigan, Greenfield Village, Comerica Park, Ford Field and the Michigan State Fairgrounds. Check-in age at this Red Roof Inn is 21 years of age or older.