Welcome to 158 Plain Street, a brand new construction colonial set on 1.16 private acres in one of Bridgewater's most desirable pockets. This 1,800 square foot home blends timeless colonial style with the efficiency and finishes today's buyers are looking for. The bright, open first floor features a well appointed kitchen with stainless steel appliances and quartz countertops, plus a versatile office or fourth bedroom, ideal for remote work, guests, or multigenerational living, and the home is set up with a legal 4 bedroom septic system to match. A powder room and dedicated laundry room add everyday convenience, while solid hardwood floors run through the main level, stairs, and landing for a warm, elevated feel throughout. Upstairs you will find three generously sized bedrooms, including a true owner's suite with a walk in closet featuring custom shelving and a private en suite bath with a beautifully tiled shower, plus a shared full bath finished with all the amenities and additional bedrooms offering ample closet space, with buyers given a choice of carpet colors or an allowance to finish in hardwood on the second level. What truly sets this property apart is its energy efficiency, built with air source heat pumps, spray foam insulation, and a high efficiency hot water system for lower utility bills and year round comfort. New construction, thoughtful design, and energy smart systems all come together at 158 Plain Street, a home that checks every box on over an acre in a location you will love coming home to.