A proposal has been made by the Canterbury School in New Milford for a Student Commons building.  The proposal to the Zoning Commission calls for a 22,000 square foot building in the center of campus and will include academic space, a center for spirituality, and a student center and cafe.  Plans call for adding 2,800 square feet to the science and math building as well.  Some old, dangerous trees would be removed as sidewalks and other improvements are made.  The co-ed boarding school opened in 1915.