10890 Old Sound Avenue Beautifully maintained ranch featuring an open-concept layout with lots of natural light coming through large windows, hardwood floors throughout, eat-in kitchen with plenty of counter space and a primary suite with en-suite bath. This home offers updated roof, siding and windows, a full basement with great potential and endless opportunities. Ideally located just minutes from the train station, grocery stores, restaurants and all central Mattituck amenities yet tucked away in a quiet and private setting, a perfect blend of comfort, convenience, and charm—ideal for year-round living or a North Fork getaway.