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 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.