The legendary Atterbury Estate in prestigious Southampton, New York, has finally come on the market after decades. This is a once-in-a-generation opportunity to create a legacy estate compound on 30± acres in the hills near the sea. Tucked away in Shinnecock Hills, which is part of the Hamptons summer resort enclave of Long Island's South Fork, the 30-acre estate is comprised of 2 parcels: a 14.68± acre southwest parcel which includes a stately bespoke residence with provenance back to circa 1912 and an historic carriage house as well as a garage, greenhouse, pool, pool house, and tennis court. The 15.18± acre southeast parcel consists of rolling, wooded raw land. Many subdivision possibilities exist for one or both parcels. On entering the impressive gates of this palatial estate, one is intrigued by the winding driveway through the Shangri-la setting until you reach the cobblestone entry through a port cochere unveiling the sensational, fully renovated 12-bed, 10-bath, 12,601± sq ft historic residence set atop the hillside built by the famed turn-of-the-century Grosvenor Atterbury, one of the most influential architects, town planners, and inventors of the first half of the twentieth century whose style has a sophisticated and enduring elegance. The cobble-stoned inner sanctum driveway encircles a Venetian fountain overlooking the expansive park-like grounds designed by Fredrick Olmsted, the father of American Landscape architecture best known for designing the grounds of New York City's Central Park and the U.S. Capitol in Washington, D.C. The-world class professionally maintained landscaping has a wide variety of exquisite specimen trees and plants. Watch spectacular sunsets from the lounge area overlooking the serene rolling hills or take to the jogging trails around the entire perimeter of the 30 acres. A stately stucco façade with graceful lines is a hallmark of the exterior, and the traditional ambience continues beyond the front door. The grand entry is flanked by the sun-drenched formal living room, dining room, and study each warmed by custom limestone and marble fireplaces. Renovated to the highest level of design and craftsmanship, classic details abound throughout the residence, from intricate custom trim and crown molding, handsome walnut hardwood floors with mahogany ribboned trim, Venetian plaster 12" interior walls, to custom insulated glass windows and doors that admit glorious natural light throughout. A spacious eat-in kitchen and butler's pantry have been appointed with top-of-the-line stainless-steel appliances. The adjacent family room flows beautifully out to a breezy al-fresco outdoor dining area with a koi pond. The luxurious primary suite includes a sitting area with glorious water views of shimmering Shinnecock Bay warmed by one of the home's 5 fireplaces and an airy onyx spa bath with Lefroy Brooks fixtures and a sauna. Eleven delightful guest bedrooms, six of which are secluded in a separate guest wing tower connected via a portico with a 3-stop elevator to the look-out terrace, a 10-seat movie theater room with fiber-optic ceiling lighting and a separate 2-bedroom apartment with kitchen. Luxury high-end amenities include geothermal and 6-zone heating and cooling systems, radiant floor heating, central station alarm systems, and an elaborate audio/visual system with built-in iPod wall docking stations. Located just 4 miles± to the Beach, 3.5 miles± to Southampton Village's shopping and fine dining, 28 miles± to the famed world-class Sebonack Golf Club, and 89 miles to Manhattan. Those seeking privacy, exclusivity, and the wide-open spaces of a grand estate with the flexibility to subdivide and develop will find this an extraordinary gold-standard investment opportunity in the Hamptons. An opportunity this rare will not last.