Masterpiece of Modern Strength & Luxury | Brand-New Concrete Waterfront Estate on Prestigious Sugarloaf Key! This extraordinary new construction stunner is engineered as a rare modern fortress-- built entirely of concrete, built to the most stringent hurricane-resistant codes, and designed for the discerning buyer who demands architectural excellence, security, and elevated coastal living. Set on prime open water with sweeping panoramic views, this property delivers the rare combination of minimalist modernism, structural integrity, and luxury resort-style design. The residence showcases a dramatic full flat rooftop deck spanning the entire top of the main home, offering uninterrupted 360° ocean sunrise and sunset views - private viewing platform unlike anything else in the Lower Keys. Inside, a breathtaking 19-ft double-volume open living area is wrapped in walls of glass, flooding the space with natural light. Sleek interior glass railings, porcelain floors, and refined finishes create a sophisticated aesthetic. Stunning chef's kitchen appointed with quartzite countertops, Monogram appliances, a bespoke bar, and a stone wine-display feature, all designed for high-end entertaining. The main residence features four luxurious private suites, each oriented to capture open-water views with direct access to generous covered terraces. A rare architectural highlight is the elevated above-flood concrete garage with soaring ceilings, loft storage space, dual cisterns, and luxury living quarters above, with kitchenette, washer/dryer, full bath, and a versatile flex room ideal for a bedroom, gym or office. A dedicated cabana bath opens directly to the pool. Outdoor living is elevated with a stunning pool and spa, outdoor shower, landscape lighting, and expansive covered entertaining and parking. A 230-ft dock is included in the sale. A statement of power, design, and luxury--brand new, turnkey, and crafted for the UHNW buyer seeking an exceptional coastal masterpiece!