Located on a serene cul-de-sac just moments from Sag Harbor Village, this gated .92-acre property perfectly blends privacy with modern design. Recently fully renovated by the owner/builder, the home offers 4 bedrooms and 4.5 baths with exceptional attention to detail throughout. A functional yet striking mudroom with radiant heated floors, ship lapped walls and custom wooden built-ins welcomes you upon entry. The first floor features a spacious chef's kitchen with a large island, Carrera marble countertops, and top-of-the-line Wolf and Sub-Zero appliances complemented by an adjacent pantry with custom cabinetry, Caesarstone surfaces and full laundry area. The kitchen flows into a bright breakfast nook and a cozy sitting area with a flagstone wood-burning fireplace and a bar with wine and beverage refrigerators, opening seamlessly to the living room with flat-screen TV. Designed for effortless indoor-outdoor living, a covered mahogany porch with outdoor fireplace overlooks a heated pool and separate hot tub, perfect for entertaining or relaxing in total privacy. Upstairs, three guest rooms provide ample accommodations, including one en suite and two sharing an en suite bath. The primary suite offers a wood-burning fireplace, and a spa-like bath with double sinks, custom medicine cabinets and vanity, Caesarstone countertops, tub, and shower. The second floor bonus is the secret passage way to the third floor, perfect for extra storage. The finished lower level with radiant flooring adds a media room, gym, full bath, and access to a one-car garage. A hard-to-find second structure has an approval for an ADU apartment with kitchen, full bath, bedroom and storage room and also offers an additional one-car garage and a large flexible space with powder room ideal for a home office, studio, or fitness room. Surrounded by mature landscaping this turnkey Sag Harbor retreat delivers complete privacy while remaining just minutes from Bridgehampton, Long Beach, and the Serene Green farm stand.