Welcome to The Sandcastle, nestled within exclusive Key Colony Beach, this custom D'Asign Source home epitomizes luxury and boasts open water views! Situated on an immaculate, gated double lot, with a private sandy beach and lush tropical landscaping, this unique property offers unparalleled resort-style amenities! Upon entry into a grand foyer, wrought iron staircases lead to an opulent great room, highlighting the view of the infinity pool and spa with breathtaking views of the Atlantic Ocean beyond. Retire to a private primary wing with splendid views from the bedroom, access to the pool deck, luxurious en suite bathroom, walk-in closet, and attached study. A masterfully appointed Chef's kitchen is equipped with custom cabinetry, generous island, and high-end appliances. The gorgeous banquette offers staggering open ocean views while the formal dining room is nearby for larger gatherings. Relax on one of several porches such as the covered veranda just off the kitchen which is tailor-made for poolside entertaining with a well-equipped Summer Kitchen. After you've enjoyed the front row seat of stunning sunset views, host memorable movie nights in the exquisite home theater! Family and visitors will enjoy elevated accommodation in any of three upstairs guest suites, each with lavish en suite bathrooms, and one with its own private balcony offering panoramic ocean views! The floor plan design is well thought out and has added bonuses such as two laundries, a pool accessible bath, a loft, an elegant elevator accessing all floors, and a first-floor garage with secure parking for 4 vehicles and plenty of storage space. Truly a rare find and included in the sale is an additional manicured lot, just across the street with a deep-draft canal, complete with a 62' composite dock to enjoy frequent boating and fishing with ease. In an established neighborhood, but in proximity to town, this spectacular property won't last long! Call to schedule a tour today.