21 Hayden Avenue Fantastic opportunity in Great Neck! This beautifully maintained Center Hall Colonial sits on a 50x124 lot in a secluded section at the end of a quiet street, and includes a detached 2-bedroom carriage house above an oversized 2-car garage. The main house features spacious bedrooms, a full bathroom, a gracious living room with a fireplace, and a gourmet kitchen with granite countertops, custom cabinetry, and stainless steel appliances, including a smart fridge! Step outside to a Mediterranean-style covered porch and an oversized yard, perfect for entertaining. The finished basement includes a laundry room, and additional living and storage space. The renovated carriage house, connected to natural gas, offers a kitchen, living/dining area, full bath, and two bedrooms—ideal for rental income, guests, or extended family. Close to shops on Middle Neck Road and houses of worship. Enjoy access to the Great Neck Park District with Olympic pools, a lazy river, ice skating rink, tennis courts, and the beautiful Steppingstone Waterfront Park.