SeaWatch Island is a 13.2‑acre private island offering gated access, a protected marina, and a rare Development Agreement with Building Right in place. Located in the heart of the Florida Keys, the property provides the opportunity to build a custom 9,500 sq ft estate along with a stand‑alone garage and pool house, creating a private compound with expansive open‑water views and direct access to both the Atlantic Ocean and Gulf of Mexico.
The Property
The island includes building entitlement for a primary residence of approximately 9,500 sq ft, with approval for additional structures such as a garage and pool house. A concrete bridge provides secure and convenient access while maintaining privacy.
The Land and Water
The island spans more than 13 acres and includes a protected marina with a concrete bulkhead and multiple deep‑water slip configurations suitable for large vessels, including Vikings, sportfishers, and catamarans. Open‑water views extend in all directions, and the location provides immediate access to world‑class fishing, boating, and diving.
Access and Utilities
The island is accessed via a private concrete bridge and is located three minutes from Marathon International Airport, with Key West approximately one hour away by car.
The Lifestyle
SeaWatch Island offers a private, secure environment suited to boating enthusiasts, anglers, and those seeking a custom‑built retreat in the Florida Keys. With deep‑water dockage, open‑water views, and proximity to both the Atlantic and Gulf, the island supports a lifestyle centered on marine recreation and seclusion. Its development approvals and rare building rights make it a compelling opportunity for creating a legacy estate in one of the region’s most desirable locations.
