Welcome to St. Mary's by the Sea. Where coastal elegance meets timeless craftsmanship. Extraordinary 1.6-acre waterfront estate offers a rare opportunity to own a nearly new custom residence on Black Rock Harbor, w/direct access to Long Island Sound. Boasting 4,300+ sqft of refined living space, this 4/5 bedroom, 5 full & 1 half-bath home is a true coastal sanctuary-combining expansive shoreline views, privacy, and modern design. All bedrooms are en-suite. Meticulously rebuilt from the ground up, this home lives like new construction. A sun-drenched, open-concept first floor is ideal for entertaining, featuring a custom-designed chef's kitchen w/all-new cabinetry, top-of-the-line appliances, & a generous layout that flows seamlessly into the dining & living areas. Panoramic water views pour in through oversized windows & French doors, & two wood-burning fireplaces add warmth & character throughout. Currently the 3rd floor is framed out for a flex space and half bath with the exciting potential for additional living space. With construction nearing completion, there is still time to select granite countertops and finalize personal finishing touches. New siding, windows, & roof. Flexible floor plan offers endless possibilities to tailor the space to your lifestyle. A spacious three-car garage completes the home. Located minutes from Harborview Market, local restaurants, yacht clubs, & offers a convenient commute to NYC. Owner says sell! Salt water pool sold as-is.