Welcome to 71 Mystic Street, a stunning new construction residence featuring 4 bedrooms, 4.5 bathrooms, and over 3,100 sqft of thoughtfully designed living space in one of Arlington’s most desirable locations. Blending contemporary design with everyday functionality, this home offers high-end finishes throughout.The open-concept main level is ideal for both entertaining and daily living, while the finished lower level provides flexible bonus space perfect for a media room, gym, playroom, or additional guest suite. Upstairs, the oversized primary suite serves as a private retreat complete with an en suite and generous closet space. A third-level entertainment room and expansive deck provide the perfect setting for relaxing or entertaining.Located moments from Arlington Center, the Mystic River paths, parks, restaurants, and cafés, with easy access to MBTA bus lines, Alewife Station, and the Minuteman Bikeway for a seamless commute.