Magnificent new construction, 5Br, 4.5 bath, 5000+ sqft center hall Colonial, latest in smart home technology, on level, over quarter acre in Central Cos Cob. Stone terracing, two family rooms, eat-in gourmet kitchen/butler's pantry and closet. Luxury Master Bedroom with his/her WICs, heated marble bath floor; additional 3BRs, 2 baths on second floor, with play/work study area near back stairs, separate laundry room and very large walk up attic. LL has an enormous family/play room, 5th bedroom/full bath with WIC, 2 extra storage rooms, and enclosed space for 210 sqft Wine Cellar. Property located two blocks from elementary school and all conveniences; 3 minutes to CC train station, Central Middle and High schools; 5 minutes to Greenwich Avenue. A truly outstanding home in every respect.