Breathe in serenity during your escape to the ''The Castle'', a luxurious gated Gulf-front estate gracefully spanning 1.14 acres on Big Pine Key. This extraordinary retreat is a rare blend of architectural grandeur and coastal charm, thoughtfully designed for both relaxation and recreation. Boaters will delight in an unparalleled offering of 235 feet of dockage total: 140 feet of protected canal-front dockage featuring a 15,000 lb lift, cut-in slip, boat ramp, PLUS a 95-foot open water pier-style dock with additional 15,000 lb lift and cut-in slip - set against a 130-foot concrete seawall for secure, convenient access. Crafted in 2014 with solid poured concrete, impact-rated windows and doors, a whole home generator, and an elevator, the home is built for enduring elegance. With over 4,600 square feet of refined interior space, this 3-bedroom, 3-bathroom estate is an architect's masterpiece with its stately presence, curved openings, and striking double staircase. Step inside to a breathtaking panorama of endless open Gulf waters and nightly sunset performances. The chef's kitchen is a dream for entertaining, featuring a 10.5-foot island with seating for 8, dual sinks, refrigerators, and ovens, plus a Jenn-Air 6-burner gas cooktop with pot filler, and rich wood cabinetry. Enjoy the grand family room with Gulf views, host movie nights in the private theater, or dine al fresco under the stars. Nearby, find the full-size laundry room and storage. The top-floor primary suite is a sanctuary, offering sweeping water views, a home office, private lounge with kitchenette, a spa-like bath with a clawfoot tub, a tiled shower, and a generous walk-in closet with additional laundry. Outside, the resort-style pool beckons with a spa, water features, LED lighting, plus a heater and chiller. Rooftop deck with 180-degree views and unrivaled sunsets awaits. Offered fully furnished, including a 2023 Sea Cat, 14.5' skiff, and 2015 Chevrolet Silverado - this is ultimate Keys living without compromise!