518 Blue Mountain Rd Santa Rosa Beach, FL 32459

A rare and irreplaceable opportunity in the heart of Blue Mountain Beach, this legacy Gulf-front property has been held by a single family since 1970 and has never before been offered for sale in its 56-year history! With 74.54 ft of direct Gulf frontage, an elevated at 28.5 ft, grandfathered 5 ft side setbacks, and property rights extending to the mean high water line, it represents the kind of coastal asset investors and builders wait years to secure. Short-term rental friendly and uniquely positioned away from public beach access points, the lot offers enhanced privacy and guest appeal while still enjoying convenient access to all that 30A offers. Just down from where Old Blue Mountain Road meets the Gulf and Big Redfish Lake, the property sits near spectacular coastal dune lake outflows and a natural buffer between Grayton Beach and Blue Mountain Beach, helping preserve the serene, low-density character of this shoreline and naturally discouraging overcrowding. Tucked on a quiet, low-traffic street, the property is an ideal foundation for a future luxury residence or high-performing vacation rental. The existing Old Florida cinderblock cottage, with a 2022 roof, offers 4 bedrooms, 2 baths, approx. 1,760 sq ft, with a fireplace, and is largely original-an excellent canvas for redevelopment, a resort-style pool, expanded footprint, and extensive outdoor living, or a reimagining into a new Gulf-front estate that maximizes the lot's width, elevation and investment potential! natural buffer between Grayton Beach and Blue Mountain Beach, helping to preserve the serenity and low-density character of this stretch of shoreline for years to come. Their presence not only protects the pleasantries of ownership but also naturally discourages overcrowding, enhancing the long-term appeal and enjoyment of Gulf-front living in this coveted 30A enclave. Within walking distance to the lake and abutting Grayton Beach State Park, the homesite benefits from an enviable blend of untouched natural preservation and the laid-back character Blue Mountain Beach is known for. This is truly one of the best lots along the Gulf, and with the continued upward trend of the west end of 30A, it stands out as a compelling investment for both primary ownership and development potential. Tucked away on a quiet, low-traffic street, the setting combines privacy with prime positioning along one of 30A's most coveted stretches of shoreline--an ideal foundation for a future luxury residence or high-performing short-term rental retreat. The existing Old Florida cinderblock cottage, with a new roof in 2022, offers 4 bedrooms, 2 bathrooms, approximately 1,760 square feet, and a fireplace that is not currently in use. In largely original condition, it provides an excellent canvas for redevelopment--with ample space to introduce a resort-style pool, expand the footprint, and create extensive outdoor living, or to undertake a complete reimagining into a new Gulf-front estate that fully maximizes the lot's width, elevation, and long-term investment potential. From a development perspective, the attributes are compelling. Grandfathered side setbacks at 5 feet, property rights extending to the mean high water line, and no restrictions on short-term rentals create flexibility for design, bedroom count, and rental configuration in a corridor where true Gulf-front is inherently scarce. Thoughtfully and uniquely positioned away from public beach access points, the lot enjoys enhanced privacy and ease of enjoyment for owners and guests alike, while still offering convenient access to all that Blue Mountain Beach and 30A have to offer. Whether envisioned as a flagship vacation rental, a luxury spec build, or a long-term buy-and-hold play, this parcel checks the boxes for both current income potential and long-range appreciation on 30A. Opportunities of this caliber--combining 74.54 feet of Gulf frontage, elevation, privacy, flexible use, and generational ownership--are exceedi