First time ever offered, this extraordinary open-water estate commands a premier position on Duck Key overlooking the crystal-clear waters of Tom's Harbor and iconic bridge. Spanning two expansive lots with an impressive 152 feet of water frontage, this iconic residence--designed by renowned architect Dale Baldwin--delivers rare scale, privacy, and timeless Florida Keys elegance.A dramatic double-door entrance opens to a light-filled open floor plan defined by white-washed vaulted and tray ceilings, walls of windows, and sweeping harbor views. The chef's kitchen features black granite countertops, a statement island, butler's pantry, and premium appliances including Thermador double ovens, Jenn-Air cooktop with grill, Whirlpool French-door refrigerator, and GE trash compactor. A formal dining space for twelve, pass-through bar and billiards area, and spacious living zones create an exceptional environment for elevated entertaining overlooking the water.The oversized primary suite offers a private waterfront retreat with spa-inspired bath, expansive walk-in closet, and balcony overlooking open water. All bedrooms enjoy private balconies. Additional highlights include abundant storage, interior stairways, laundry room, white ceramic tile floors, and plush carpeted bedrooms.Outdoors, a screened balcony, resort-style pool with paver deck, and mature tropical landscaping frame the ultimate island lifestyle. The expansive T-dock provides outstanding versatility for a boat lift, jet ski lift, and kayak launch.Built with solid concrete construction, standing-seam metal roof, accordion shutters, subfloor access, two-car garage, and a grand half-circular driveway. A landmark offering where architectural distinction meets open-water serenity on prestigious Duck Key.