This stunning 5,100+/- sq. ft. Rare Colonial residence is set on 2.53 manicured acres with preserved land behind, offering the rarest combination of elegance, functionality, and flexibility for multi-generational living. The main residence features 4 bedrooms and 3.5 baths, highlighted by a newly updated gourmet kitchen with solid wood cabinetry, granite countertops, and premium JennAir appliances. The open-concept design flows effortlessly into the spacious family room with fireplace, alongside elegant formal living and dining rooms, and a first-floor office. The primary suite is a true retreat, showcasing a renovated spa-like bath with soaking tub, skylights, dual vanities, private water room, and generous closets. A finished, heated lower level includes a full bath, recreation space, and abundant storage. Throughout the home, fresh paint, upgraded flooring, and modernized bathrooms add to the turnkey appeal. Connected by an enclosed breezeway, the 2,100 sq. ft. in-law/extended family addition is a masterpiece of design. This private living space offers 2 bedrooms, 2 full baths, a dramatic double-height living room, a separate family room, vaulted ceilings, and a private patio—perfect for extended family, guests, or an au pair. Outdoors, the estate is designed for both relaxation and entertaining. The fully fenced grounds showcase a saltwater inground pool surrounded by stamped concrete and a spacious lounging area, along with a two-tier Trex deck off the main home. Mature landscaping enhances the estate-like setting, ensuring privacy and beauty year-round. Additional features include a side-entry two-car garage and thoughtful architectural details throughout. This property represents the pinnacle of luxury and versatility—whether you seek a grand primary residence, multi-generational living, or simply the best Millstone has to offer.