Experience the pinnacle of coastal luxury in this exceptional custom estate, completed in 2021 by renowned Mason Martin Builders. Designed and sparingly used by the original owners who crafted it with precision and care, this like-new residence has since been thoughtfully reimagined by the current owner with an elevated level of designer finishes and enhancements throughout. Situated near the desirable north end of Longboat Key on a tranquil canal with a private dock and boat lift, this home provides effortless access to the open Gulf waters--an ideal setting for boating enthusiasts. Deeded neighborhood beach access just moments away completes the ultimate Florida lifestyle for those who cherish both sea and sand. This three-story architectural gem offers three spacious en-suite bedrooms, three-and-a-half baths, and the ease of a private elevator. Expansive balconies with wood-clad ceilings connect each floor, blending indoor elegance with outdoor serenity. Natural light pours through floor-to-ceiling sliding glass doors, accentuating peaceful water and garden views from every level. At the heart of the home, the gourmet kitchen boasts Sub-Zero and Wolf appliances, quartz countertops, and bespoke cabinetry--perfect for both everyday living and entertaining. The entire third floor is dedicated to a luxurious primary suite retreat with spa-style bath, soaking tub, oversized walk-in shower, dual vanities, and custom closets. The private outdoor sanctuary includes a resort-style pool and spa, fire pit, covered lounge space, and expansive sun deck--perfect for sunset gatherings or quiet afternoons in the sun. Professional xeriscaping, mature privacy plantings, and enhanced landscape lighting create a serene, low-maintenance environment. Notable upgrades include a newly constructed three-foot perimeter seawall, advanced drainage and waterproofing systems, and impact-rated windows and doors for peace of mind. Inside, premium upgrades such as commercial-grade European wall coverings, high-end fans and hardware, and designer window treatments ensure every detail reflects refined sophistication. With its prime waterfront location, nearly new condition, and elevated design, this rare offering embodies the essence of Longboat Key luxury for the active coastal lifestyle.