Exclusive Waterfront Opportunity on Siesta Key. Discover the pinnacle of waterfront living with this gated, estate-sized 1.27-acre property located on highly coveted Bay Island at the desirable north end of Siesta Key. This exceptional property is a boater's paradise, offering 178 feet of sailboat (no bridges) waterfront with oversized dockage and unparalleled access to the Gulf of Mexico via deep boating waters through Big Pass. The current main residence, storm-damaged and slated for demolition, presents a rare opportunity to design and build your dream coastal retreat on this expansive lot. Architectural plans for a stunning 5,000-square-foot Coastal Contemporary residence are available, providing a seamless vision for this premier property. Meanwhile, a newly constructed, elevated guest house offers immediate accommodations, blending modern luxury with breathtaking views of the serene surroundings. This estate also boasts a professional-grade tennis court for the sports enthusiast, an oversized dock and boat lift capable of accommodating larger vessels, and a separate kayak dock and jet ski dock, ensuring seamless enjoyment of the water. Situated just minutes from world-famous Siesta Beach and the mainland’s vibrant Sarasota lifestyle, this prime location offers the best of both worlds: the tranquility of island living and the convenience of world-class dining, shopping, and cultural amenities. This is more than a property - it’s a canvas to create a legacy estate in one of Florida’s most sought-after waterfront enclaves.