Welcome to a residence where opulence meets comfort in perfect harmony. Nestled in the esteemed Jennings Beach neighborhood, this custom-built estate epitomizes refined living across a sprawling 3.78-acre flat well-designed property. A dramatic two-story entry foyer leads to an expansive living room open to the dining and sophisticated bar area with a dual fireplace and high ceilings. Enjoy culinary excellence in the gourmet kitchen featuring 4 pullout Sub-Zero refrigerators, a Sub-Zero wine refrigerator, and a Lacanche stove. The main floor showcases a sumptuous primary suite complete with a gas fireplace, two large walk-in closets, and a spa-like bathroom, steam shower, and separate water closet. The suite also has its own entrance to the serene back patio. Outside, indulge in a private tennis court with a newly paved surface, a heated gunite pool with an integrated spa, and a chic pool house with its own bathroom. The expansive grounds are meticulously manicured, offering a serene and private retreat. The finished basement is a haven for recreation, boasting a movie theatre, gym, a playful playroom, and a guest suite with a separate entrance. Additional features include a cedar closet and ample storage. Additional features include Carisle wide plank wood floors, Marvin windows, and an Elan home control system with 18 audio zones. The dual Buderus boiler system and 18 radiant heating zones ensure year-round comfort. This estate is equipped with advanced systems including a full-house generator, Hikvision camera security, Ecostar synthetic roof slates with a 50-year warranty, and Pulse Worx lighting. The 5-car garage-2 attached and 3 detached-includes a storage area above and a new asphalt oil stone driveway. Enjoy direct access to pristine beaches at Cold Spring Harbor and the Incorporated Village of Lloyd Harbor. This residence is the pinnacle of luxurious living and is ready to offer you an unmatched lifestyle of sophistication and relaxation. Experience the ultimate blend of privacy, luxury, and convenience in this exceptional estate. Cold Spring Harbor SD#2 and Jennings Beach with invitation., Additional information: Appearance:Perfect,ExterioFeatures:Tennis,Separate Hotwater Heater:y