Welcome to 53 Jay St, a stunning contemporary new-construction townhouse in Cambridge's sought-after Riverside neighborhood. Living like a single-family with private parking and a fenced backyard, this sun-filled 3-bed, 2-bath home spans four levels and offers three incredible outdoor spaces. Enter through a private entrance into an open-concept living, dining, and kitchen area with high ceilings, maple floors, marble counters, premium stainless appliances, a pantry, and a stylish full bathroom. The beautiful primary suite occupies the entire second floor with a spa-like ensuite, two custom closets, and a private deck. The third floor provides a flexible bedroom, office, or lounge with a wet bar and access to a custom roof deck with impressive bifold doors. The lower level includes a versatile living room or bedroom, laundry, and storage. Close to Harvard, MIT, the Charles River, and Central, Inman, and Kendall Squares, this home blends modern comfort with the best of Cambridge living.