Welcome to 19 Buttercup Lane-a beautifully maintained 9-room Colonial tucked away on a private wooded acre in one of Shelton's most desirable neighborhoods. Located within the highly sought-after Booth Hill Elementary School district, this 4-bedroom, 2.5-bath home features a flexible floor plan, including a main-level office that can reconverted to a 4th bedroom-ideal for guests, multi-generational living, or those who work from home. The first floor offers a formal dining room, a sun-filled living room with a cozy fireplace, an updated eat-in kitchen and a family room overlooking the peaceful, private backyard. Upstairs, you'll find a spacious primary suite with a walk-in closet and full bath, along with two additional bedrooms, another recently updated full bath and an extra room which could serve as a nursery or additional office. One of the home's standout features is the updated engineered septic system, offering modern reliability and peace of mind for years to come. Enjoy outdoor living on the spacious screened porch -- perfect for entertaining or relaxing -- with adjacent grilling area for convenience. The home also boasts a partially finished basement (about 500 sqft) and 2-car attached garage. Conveniently located near shopping, parks, and commuter routes, this home blends comfort, flexibility, and long-term value.