This exceptional property features an 11,000 +/- sf traditional home sited on a 4.6 +/- acre flag lot in beautiful Sag Harbor and is only a short distance to Long Beach or Sag Harbor Village. It provides 7 en suite bedrooms, 9 full and 1 half baths, and a grand, double-height foyer which welcomes guests with a choice of formal, or relaxed living spaces beyond, each with a fireplace. The informal living area is expansive with double-height, fully vaulted ceilings and multiple sets of windows that flood the interior with natural light from expansive back grounds. A formal dining room with coffered ceiling and bay windows augments a bright and airy casual dining rotunda. The professional chef's kitchen is spacious and pristine, awash in bright-white custom-integrated cabinetry, marble countertops, and fitted with top-of-the-line appliances. A center island offers an additional sink, counter dining, and wine storage. On the second level, a massive primary en suite includes a fireplace, a private office, a walk-in closet, a sitting room, and a private sundeck. 3 guest suites, each with a private bathroom are also provided. A junior suite and an additional bonus bedroom or office, each with a dedicated full bath are offered on the first floor, as well as an additional guest suite with a full bath and private entrance above the 2-car garage. A finished lower level includes service quarters, a wine cellar, a gym, a sauna, a game room, and a custom-designed home theater. Lush grounds surrounding the home feature a heated gunite swimming pool and spa, an all-weather tennis court, and a pool house with a full bathroom and outdoor shower. A large, screened porch, a covered poolside dining terrace, an outdoor bar, a grill area with a built-in pizza oven, and a firepit offer an extraordinary lounging space and entertainment area.