Build Your Dream Home in Paradise. Discover this vacant lot on the prestigious island of Duck Key, perfectly situated on a quiet, upscale street. The property is partially cleared and comes with plans for a stunning modern home, included in the sale.Enjoy the island lifestyle with possible water views from a second floor or rooftop sundeck, and take advantage of the golf cart-friendly community featuring two marinas for easy access to the water. Just a short distance away is Club Duck Key, a private club offering a pool, tennis courts, clubhouse, and jacuzziideal for relaxation and recreation. All this while being just minutes from Marathon's shops, restaurants, and conveniences.