Designed by pioneering modernist Carl Koch, this recently updated gem is one of 9 homes in the Snake Hill neighborhood, one of the first modernist developments in America. Outdoors and indoors are literally linked via natural materials & walls of glass, with radiant heated slate floors and a stone wall that carries from the level backyard into the house. The 2017 kitchen is filled with natural light and has top appliances, new cabinets, a fireplace, dining area, + a sliding glass door to the patio. The living room centers on an adobe-like fireplace. The 1971 wing was designed by Koch as a bedroom suite w/a full bath & currently makes a great family room. Upper level features 3 bedrooms, study, + 2 full baths. Built-ins abound, providing plenty of storage. Private level yard w/a Zen fountain. Snake Hill Trust includes 4 protected lots in joint ownership & is buffered by town land. A rare offering for a turnkey modern home close to public rail, shopping, & minutes to Cambridge & Boston.