Experience the ultimate in sustainable luxury in this nearly new 4,250 +/- sq. ft. residence on nearly 1.5 acres of very private, lushly landscaped property. A striking blend of glass, cedar, and stucco; the home is approached by a stone driveway framed by mature plantings, offering a grand yet welcoming arrival. Inside, a custom floating steel staircase anchors the entry, leading to an open, light-filled floor plan enhanced by 10' ceilings, expansive sliding glass doors, and a southern orientation that maximizes natural light. The living room, with its sleek gas fireplace, flows seamlessly into the generous dining area-ideal for intimate dinners or stylish entertaining. Just beyond, a large covered mahogany deck creates a true indoor/outdoor experience, complete with a chic al fresco dining area, outdoor TV, bar, and a spacious lounge centered around a dramatic gas fireplace. The state-of-the-art kitchen features custom cabinetry, low-maintenance Silestone counters, a breakfast bar, and premium appliances by Liebherr, Bertazzoni, and Viking. A first-floor junior primary suite-also perfect as a den-includes an en-suite bath, along with a guest powder room. Upstairs, the private primary suite occupies its own wing, offering two walk-in closets and a spa-like bath. Two additional en-suite bedrooms and a full laundry room complete the level. The impressive lower level, with 9' ceilings, offers a large multi-use great room-perfect for a media area, bar, or gaming space-plus a secluded fifth bedroom and full bath ideal for guests or staff. The fenced, resort-style grounds include expansive lawns, vibrant landscaping, a fire pit, a chic outdoor shower, and a stunning 16' x 32' saltwater gunite pool. A detached two-car garage completes the offering. Located minutes from Sammy's Beach, Three Mile Harbor, and a quick drive to East Hampton and Sag Harbor villages, the home offers easy access to world-class dining, shopping, and water activities. As a bonus, this property is designed as a Net Zero home, integrating geothermal heating, solar energy, high-efficiency systems, and passive solar design to dramatically reduce operating costs.