Ronald McDonald House Ann Arbor has served more than 36,000 families since opening our doors in 1985. Spearheaded by the Junior Service League (now the Junior League of Ann Arbor), the project was a collaborative effort with University of Michigan Health C.S. Mott Children’s Hospital and the community. Originally able to accommodate 24 families each night, an expansion in 1992 increased that number to 29. A second House built on the 10th floor of C.S. Mott Children’s Hospital, added another 12 rooms in 2011. Two additional family guest rooms were constructed in the Main House in 2018, bringing the total number of rooms to 43. Our two Houses make Ann Arbor the largest Ronald McDonald House Chapter in Michigan.