Set within a private 16-acre subdivision off Deerfield Road in Sag Harbor, this brand-new residence is one of four custom homes being brought to market. Situated on a 1.61 acre parcel that borders more than 10 acres of preserved open space, this exceptional property redefines luxury living-seamlessly blending contemporary design with comfort and scale. Spanning three expansive levels and totaling approximately 8,769 sq. ft. (including 2,743 sq. ft. on the finished lower level), the home offers 8 bedrooms, 10.5 baths, an oversized 2-car garage, a heated gunite pool, and a private pickleball court. Upon entry, double-height ceilings and a striking vertical wood accent wall establish a bold design tone, with clerestory windows providing natural light and serene backyard views. The main level is designed for gracious entertaining, featuring 11' ceilings and 10' solid wood doors that elevate the atmosphere. To one side of the foyer, a formal dining room, coat closet, and elegant powder room flow into a grand living space. The state-of-the-art kitchen, anchored by a dramatic Carrara marble center island with bar seating, is complemented by a separate full-service prep kitchen-ideal for private chefs or effortless hosting. Outfitted with professional-grade appliances by Wolf, Sub-Zero, and Bosch, this is a true culinary showpiece. Across the great room, a Carrara marble gas fireplace and hearth harmonize with the home's modern palette. Oversized sliding glass doors, imported from Greece, and Marvin windows invite the outdoors in with warmth and volume. A first-floor junior primary suite offers a large walk-in closet and spa-like bathroom. Nearby, the mudroom-with a pool bath, laundry area, and built-ins-connects seamlessly to the garage and side yard for discreet access. Upstairs, the primary suite is a private escape, featuring two walk-in closets and an oversized bath with a soaking tub and dual vanities. Four additional ensuite guest bedrooms ensure privacy and comfort for family and visitors. A second laundry room on this level adds ease to daily living. Step onto the 17' mahogany terrace and take in the professionally designed landscape, framed by a hand-built stone wall. The backyard is a sanctuary with a 20'x40' heated saltwater pool, 8'x8' spa, and a full-size pickleball court. The finished lower level completes the lifestyle offering with two more ensuite guest rooms, a full bath, golf simulator room, media lounge, home gym with specialty flooring, sauna, and massage room. A bright recreation area opens to a sunken courtyard, adding yet another layer of outdoor living. Located between Sag Harbor, Water Mill, and Southampton, this newly completed home is a rare opportunity to own a turn-key masterpiece in one of the Hamptons' most desirable enclaves.