Situated in a prestigious Southlake cul-de-sac, this gated estate encompasses 2.57 stunning acres of lush, private grounds. Blending cutting-edge craftsmanship with timeless luxury living, this home is designed for grand-scale entertaining and effortless everyday comfort, showcasing exquisite finishes, sophisticated technology, and resort-style amenities. A dramatic entry opens to soaring ceilings, floor-to-ceiling windows, and seamless indoor-outdoor living spaces filled with natural light. The tranquil first-floor primary suite features a library ceiling, gas fireplace, coffee bar with sink and refrigerator, and a private office. The spa-inspired primary bath is luxuriously appointed with a domed ceiling, double rain shower, porcelain soaking tub below picture windows, double bench beechwood sauna, and expansive his-and-hers closets. French doors provide private access to the poolside patio. Meticulously designed for elevated entertaining, this home’s custom features include a 300 plus bottle temperature-controlled wine cellar, full bar, game room, home theater, study, gym, and first-floor guest suite. The chef’s kitchen features custom walnut cabinetry, dual dishwashers, built-in refrigerator and freezer, pot filler, walk-in pantry, butler’s pantry, and extensive built-ins. Outside, a 60,000 gallon Claffey negative-edge pool with fountains, fire bowls, and elevated spa is a showstopper. Two covered patios connect to the pool house with a full bath. Additional amenities include two outdoor fireplaces, and an outdoor kitchen and bar. Car enthusiasts will appreciate three spacious garages with epoxy flooring, Tesla Powerwalls, and a 116-panel solar array. A rare blend of luxury and innovation, 855 Harbor Ct is an unparalleled opportunity.