Direct Gulf access, a deeded boat dock with electric lift, and unforgettable western sunset views define this custom 2022 waterfront estate on Key Marco's exclusive gated peninsula. Set on approximately 0.63 acres, the property offers exceptional privacy, with protected preserve views and a historic site beside the home limiting neighboring development. The 5,644-square-foot residence combines refined coastal design with thoughtful engineering. Walls of glass frame panoramic water views, while soaring ceilings, hardwood floors, designer tile accents, coffered and tray ceilings, and a private elevator create an elevated living experience. The chef's kitchen features quartz countertops, a six-burner gas range, paneled refrigerator, and a full butler's pantry with a second dishwasher, sink, and extensive storage. A full bar with wine refrigeration makes entertaining effortless. Outdoor living centers on a heated pool and spa, covered lanais, fireplace and fire pit, full outdoor kitchen, and sand bocce court. Boaters enjoy quick access to the Gulf of Mexico from the private dock and lift. Built for coastal confidence, the home features impact-rated windows and doors, a reinforced FEMA-approved panic room, and a basement level with multiple sump-pump systems. The basement floor is approximately 15 feet above sea level, providing valuable storage and exceptional construction rarely found in Southwest Florida. Key Marco provides secluded streets, controlled gated access, preserve surroundings, and convenient access to Marco Island beaches, dining, golf, and shopping. A respected charter school is located just outside the community gate. This is a rare opportunity to own a secure private waterfront sanctuary offering boating, luxury, and some of Marco Island's most spectacular sunsets.