Welcome to 3 Ada Lane, a timeless classic custom-built residence set on a beautifully landscaped property in Setauket. With refined curb appeal and mature privacy plantings, this home offers elegance and presence from the moment you arrive. Inside, hardwood flooring and custom crown moulding enhance the thoughtfully designed layout. The spacious great room features a gas fireplace and flows seamlessly for everyday living and entertaining. With five bedrooms and four and a half bathrooms, this home offers exceptional flexibility. The fully updated primary ensuite serves as a private retreat, complete with radiant heated floors and generous closet space. Central vacuum adds everyday convenience. A full basement with an outside entrance provides additional living, recreation, or storage possibilities. Outdoor living shines with a recently updated oversized Trex deck, a dedicated gas line for barbeque, and a full privacy landscaped yard. The Gunite pool and overflow spa are secured with a new Loop-Loc cover, offering both enjoyment and peace of mind. Ideally located near Stony Brook University, Port Jefferson Village, beaches, parks, shopping, and dining, this home blends classic design with modern updates in a desirable Setauket setting.