Build Your Dream Home in Exclusive Key Marco. A rare ½-acre waterfront lot with direct Gulf access—an opportunity that has virtually disappeared on Marco Island. Set within the private, gated community of Key Marco, this homesite offers unmatched value, privacy, and design freedom, including a 55-foot building height. allowance for sweeping panoramic views. Enjoy a private marina with assigned boat slip, clubhouse, tennis and pickleball courts, and HOA fees under $700 per month. Surrounded by estate homes valued at $5M+, the community ensures long-term prestige and exclusivity. From your backyard, explore the world-famous Ten Thousand Islands—a paradise for boating, fishing, wildlife, and pure relaxation. Walk, jog, cycle, kayak, or paddleboard through this nature-rich sanctuary, all just minutes from Marco Island's renowned white-sand beaches, shops, and dining.