Another Winfield Developers Bayfront Masterpiece. Nestled along prestigious Heron Drive, one of Avalon's most exclusive waterfront streets, 19 Heron Drive is a hidden jewel that unfolds into breathtaking views of Tarpon Lagoon and the bay. With architectural design by Asher Slaunwhite + Partners, this extraordinary custom residence spans approximately 5,738 square feet and showcases bespoke millwork, tailored finishes, custom lighting, vaulted ceilings, magnificent architectural shapes and curves, and carefully proportioned volumes, creating a seamless flow for both elegant entertaining and relaxed daily living. Enter through the covered porch and immediately experience gorgeous bay views framed by expansive walls of glass. The waterfront family room features floor-to-ceiling sliding glass doors that open directly to the outdoor living areas, while the second-floor porch features automated screens, power hurricane shutters, and heaters, creating a seamless indoor-outdoor experience. The home's exceptional orientation captures beautiful natural light throughout the day, along with spectacular sunrise and sunset views. At the heart of the home is a state-of-the-art chef's kitchen featuring a Wolf range, Sub-Zero refrigerator, Sub-Zero wine refrigerator, refrigeration drawers, custom cabinetry, and a dedicated wine bar. The residence offers six bedrooms, including three ensuite bedrooms, five full baths, and two powder rooms. Two bedrooms enjoy direct waterfront views. The luxurious primary suite features an immense spa-inspired bath with soaking tub and a spectacular private deck overlooking Tarpon Lagoon. A third-story roof deck provides another exceptional vantage point for sweeping views across the Fingers and surrounding waterways. Outside, resort-style living takes center stage with expansive waterfront decking, a custom stone patio, heated in-ground pool and spa, spacious yard, and beautifully designed cabana. The custom patio incorporates a specialized drainage system through the bulkhead, while professional landscaping and exterior lighting complete the setting. Perhaps most impressive is the property's rare 75 +/- feet of waterfront frontage directly on Tarpon Lagoon, complemented by a brand-new bulkhead, two deep-water boat slips, dock access lighting, and excellent water for boating and docking, including at low tide. Its protected lagoon setting provides desirable shelter while offering convenient access to Avalon's surrounding waterways. Additional features include custom cedar detailing, cedar shake siding, brick foundation, private elevator, three HVAC systems, three washer/dryer combinations, and abundant storage. Very few Avalon properties combine this level of waterfront frontage, protected boating water, deep-water dockage, outdoor space, architectural distinction, and resort-style amenities. Unique and truly one of a kind, 19 Heron Drive represents one of the finest waterfront packages on the market quintessential Avalon luxury and inspired living by the bay at its finest. Estimated completion: November 2026. Listing contains AI enhanced photos.