Welcome to 20 School House Lane in Syosset. Nestled on a quiet, midblock, this charming 3-bedroom, 3.5-bath colonial offers a rare opportunity for buyers looking to bring their vision to life and make a home truly their own. Situated on a large lot, this property is full of potential and is perfect for someone seeking space, location, and the chance to add their own personal touch. The first floor offers a warm and functional layout, beginning with a den featuring a convenient office nook with a powder room, flowing seamlessly into the dining area and living room with a fireplace that has direct access to the backyard—ideal for entertaining or everyday living. The eat-in kitchen is filled with natural light from oversized windows and features stainless steel appliances and gas cooking. Upstairs, you'll find 3 bedrooms and 2 full bathrooms, including a large primary ensuite bedroom designed for comfort and privacy. The partially finished basement provides additional flexibility with a full bathroom and side entrance access, offering endless possibilities for recreation space, guests, or extended living. This is an incredible opportunity for buyers to customize and create their dream home in one of Syosset's most desirable locations. Additional highlights include split AC systems installed in 2020 on the first floor and in one second-floor bedroom, an in-ground sprinkler system, detached 2-car garage set up for chargers for Electric Vehicles, and an expansive 8-car driveway. Conveniently located just moments from the Village of Syosset, shopping, dining, and the LIRR station with direct access to New York City, this is a fantastic opportunity to create something special in a prime location.