This sprawling 5-acre estate features 11,000 square feet of living on 3 levels. The spectacular 20-room home was chosen to be the Hamptons Designer Showcase when built 10 years ago. Priced below construction cost, it is one of the largest Sag Harbor estates 1) just outside the Village, 2) a mile to Long Beach and 3) minutes to Bridgehampton. Drive down a 300' drive, which opens to a courtyard and 125' wide home for tremendous curb appeal. The property is surrounded by 200 acres of reserve for rockstar privacy. Inside, the home features 6 oversized ensuite bedrooms on the top two levels, plus a studio "apartment" with its own bathroom and private entrance. Common areas are spacious, including a 2-story foyer, 2-story great room, 36x16 living room, and a showcase Bakes & Kropp kitchen with a family room and breakfast area. A screened porch with TV and plentiful wrap-around covered porches allow for indoor/outdoor living. The home features a massive 1800 square foot master suite, including office, sitting room, and dressing room. The designer bathroom was Chanel-inspired, with THG plumbing fixtures, Thassos and Blue Celeste marble. A private balcony oversees a spectacular park-like back yard, surrounded by reserve. There are 3 ensuite guest bedrooms upstairs and a second master bedroom and 6th ensuite bedroom on the first floor. The walk-out lower level is an extension of upstairs, with a Barbara Ostrum-designed theater, gym, game room, bar, and spectacular wine cellar. There is a room with sliding glass doors to outside that could serve as a 7th bedroom, if septic were to be expanded. Above the 2-car garage, there is a 400 square foot studio with ensuite bath and private entrance. The park-like grounds are breathtaking, with mature flowering landscape. The back yard has $500,000 of upgrades, including a 20' x 46' show-stopper pool with water spillways, overflowing hot tub, sunbed, designer firepit, pool house, sit-down outdoor bar, large barbecue, and Tennis! Steps to Sag Harbor Village, marinas, and Long Beach in one direction, and a straight shoot to Bridgehampton Village and Ocean Beaches in the other. This 5 acre estate offers so much for only $5.5MM. C of O has been updated. Home is ready for immediate occupancy.