Welcome to 19 Spyglass Lane in East Setauket! Situated on a beautifully maintained .58-acre property in the award-winning Three Village School District, this spacious 4-bedroom, 2.5-bath Colonial offers classic charm, generous living space, and a fantastic layout perfect for both everyday living and entertaining. The welcoming main level features hardwood floors, crown molding, and bright sun-filled rooms throughout. The updated eat-in kitchen boasts white cabinetry, stainless steel appliances, a center island, and ample counter space, flowing seamlessly into the comfortable family room with sliding doors leading to the backyard-ideal for indoor/outdoor living. The home also offers a formal living room and dining room, creating the perfect setting for gatherings and entertaining. Upstairs, you'll find four spacious bedrooms, including a large primary bedroom with excellent closet space and a private en-suite bath. The full finished basement provides exceptional additional living space-perfect for a recreation room, home office, gym, or playroom-while still offering plenty of storage. Step outside to your expansive, park-like backyard, featuring a large deck and plenty of open green space, ideal for entertaining, relaxing, or outdoor activities. The property is beautifully landscaped and provides both privacy and room to enjoy. Additional highlights include a 2-car attached garage, central air, in ground sprinklers, large driveway, and a prime location close to parks, shopping, schools, and major roadways. Do not miss this home!