The CMS vision has been followed since the first campus opened in 1995. The successful approach has allowed expansion to five campuses conveniently located near major intersections of central North York and Thornhill in north Toronto.

The newest campus, located in the Leslie and York Mills area at 18 Coldwater Road, opened September 2003, in response to requests and encouragement from parents to provide spacious indoor and outdoor facilities at the new campus. The CMS, York Mills campus, is situated on 2 1/2 acres of land with spacious indoor facilities that include: large classrooms, a library, labs, art and music rooms, a standard size gymnasium/auditorium, and an outdoor play area.