Modern Back Country Retreat with Pool, Spa & 4 Private Acres. Set on 4 serene acres in coveted Back Country Greenwich, this impressive contemporary estate blends striking architecture with comfortable, light-filled living. Built in 1978 and thoughtfully maintained, the home features 11 rooms, 5 bedrooms, 4 full and 3 half baths, and an in-law suite over the 3-car garage. The main level showcases 9-ft + ceilings, hardwood floors, and walls of glass that open to expansive terraces and level lawns. A gracious living room with fireplace, formal dining room, and library with custom built-ins complement the cathedral-ceiling family room and wet-bar den, creating ideal flow for entertaining. The eat-in kitchen offers quartz counters, breakfast bar, atrium windows, and premium appliances including a gas cooktop, wall oven, counter grill, and built-in refrigerator/freezer. The primary suite on the main floor provides a peaceful retreat with a remodeled bath, walk-in closet, hardwood floors, and private sliders to the terrace. Upstairs are three additional bedrooms, two full baths, and access to the in-law suite. The lower level adds over 3,500 sq ft of unfinished space perfect for a gym, media room, or recreation area. Outdoor living is exceptional with an in-ground heated saltwater pool and spa, expansive deck and terrace, and beautifully landscaped grounds offering privacy and room to play.