Welcome to Notre Colline Estate, a private country compound set on more than 56 acres of rolling meadows, gardens, ponds, and Catskill Mountain views. French for Our Hill, Notre-Colline has an easy sense of belonging to its landscape. A long, paved drive leads to this elegantly designed 5,760-square-foot home, inspired by classic Greek Revival architecture. Built in 2005 for comfort, entertaining, and longevity, it features a standing-seam metal roof, radiant heated floors, energy-efficient heat pumps, and a fully integrated smart home system that manages lighting, temperature, security, video, and sound. The main level opens to bright, connected gathering spaces centered around a modern chef's kitchen with a large custom island, a counter depth paneled fridge, and professional-grade appliances. French doors from the dining area and breakfast nook open to a wide stone patio with an outdoor kitchen framed by landscaped gardens and open lawns, creating an easy indoor-outdoor flow. A paneled cherry wood office with built-in cabinetry and a wood-burning stove offers a quiet workspace beside a three-season sunroom, and a spacious living room with a gas fireplace invites relaxed evenings with friends and family. Upstairs, the grand primary suite feels like a private retreat, complete with a gas fireplace, two walk-in closets and a luxurious bath with a soaking tub and steam shower. Three additional bedrooms, a guest living room, two full bathrooms and a laundry room complete the second floor. The finished lower level adds generous additional living space with a recreation room, billiards area, kitchenette, sauna and full bath, ideal for guests or wellness use. An attached three-car heated garage features a porcelain tile floor and plenty of space for storage. Outdoors, a peaceful aerated pond lies at the center of the property, crossed by a charming footbridge and bordered by open lawns and walking paths. The grounds also include fenced in raised-bed gardens with irrigation, a potting shed, and a newly constructed insulated 26x34 foot outbuilding with water, electric, and space for six or more vehicles. Every detail has been considered for efficiency and ease, from spray-foam insulation and upgraded hydronic systems to improved drainage and a generator. Located minutes from Chatham village, Notre Colline Estate offers refined country living in beautiful Columbia County.