Tucked away on over seven quiet acres off prestigious Round Hill Road, this private estate offers a serene blend of luxury, space, and style. The main residence is complemented by a beautiful pool/guest house designed for effortless entertaining and resort-style living. At the heart of the home, a Christopher Peacock kitchen showcases statuary marble countertops and backsplash, double islands, and professional-grade appliances, all centered around a custom command station with built-in desk and storage. The kitchen opens seamlessly to a sun-filled family room with bespoke cabinetry, creating the perfect setting for relaxed gatherings. The first floor also features a front-to-back living room, elegant dining room, inviting home office, and private en-suite guest suite. The second floor features four spacious en-suite bedrooms, including a luxurious primary suite with two spa-inspired primary bathrooms and two expansive walk-in closets. A large laundry room and recreation/family room complete this level, offering flexibility for work, play, or relaxation. The lower level is fully finished and thoughtfully designed with a game room, lounge, gym, and media room, providing abundant space for leisure and entertaining. Outside, the resort-quality pool/guest house, designed in 2017 by renowned Greenwich designer Susan Alisberg, sets a new standard for leisure. A folding Nano wall blurs the lines between indoors and out, revealing a vibrant kitchen with snack bar and stylish lounge that open to the bluestone-surrounded pool. Whether hosting summer soirées or unwinding in the evening breeze, this is an entertainer's paradise. Additional highlights include a Savant whole-house sound system, three-car garage, and 40-kW Cat generator. A rare offering combining timeless design, modern comfort, and absolute privacy in one of Greenwich's most coveted locations.