Offered fully furnished, this newly constructed contemporary residence in Sag Harbor's desirable Northside Hills community combines sophisticated design with resort-style amenities on 1.5+/- private acres. Spanning 5,240+/- square feet across three levels connected by an elevator, the home features five ensuite bedrooms, five full and one half baths, and seamless indoor-outdoor living throughout. The open-concept floor plan is filled with natural light and showcases a gourmet kitchen with custom Ciuffo cabinetry, Wolf and Sub-Zero appliances, and expansive living and dining spaces that open directly to the outdoor entertaining areas. Outside, enjoy a private Hamptons retreat complete with a 20x40 heated saltwater gunite pool, waterfall spa, Har-Tru tennis court, beautifully landscaped grounds, and mature trees that provide exceptional privacy. Additional highlights include a fully integrated Savant smart home system, wide-plank white oak flooring, motorized shades, Marvin windows and doors, and zoned heating and cooling throughout every room.Ideally located moments from Sag Harbor Village, Bridgehampton, beaches, dining, and marinas, this turnkey property offers the perfect balance of luxury, comfort, and convenience for year-round or seasonal living.