Architecture Incorporated of Boulder, Colo. designed the master plan and community center for Kendal at Hanover, the 250-unit continuing-care retirement community north of town just past CRREL and Rivercrest [Terraserver aerial].   Perkins Eastman Architects PC of NY designed some or all of the Kendal’s housing; the site includes an 1801 farmhouse that was renovated in 1998 to serve as a guesthouse.