Penthouse duplex condominium ideally located on a quiet Charlestown street. This bright and sunny 3-bedroom, 2-bath home features high ceilings, oversized windows, and custom built-ins throughout. The main living level offers an open, inviting layout with seamless flow to a private deck off the kitchen—perfect for entertaining or everyday living. The upper level provides flexibility for bedrooms, guest space, or a home office, while roof rights offer exciting potential for future outdoor space. Additional highlights include private washer/dryer in the basement, extra storage, and a well-maintained two-unit association. A rare opportunity to own a penthouse home with outdoor space, character, and convenience in the heart of Charlestown.