Built on one of the two lots owned by Ephraim Williams, this 1820 Colonial with a 2001 addition combines historic charm and modern amenities with three floors of living space.  Hardwood floors, exposed posts and beams, and a dramatic addition with massive fieldstone fireplace enhance the warmth and elegance.  The gourmet kitchen with its center island, stone countertops, and Viking professional gas stove is designed for the serious chef.  The spectacular master bedroom suite offers ample closet space and two luxurious baths.  In all, this four bedroom, four bathroom home has more than 3,600 square feet of living space.  Private deck and two-car attached garage.  Bordered by Hemlock Brook, this property features a delightful tree-lined setting close to the Clark Art Institute, Williams College campus, and the Williamstown Public Library.