Finest urban living in this oversized 3 bedroom/2.5 bath penthouse duplex on desirable Upton Street! Just one flight up to the entrance that leads to the spacious bedroom level with laundry room and new Miele W/D. Lovely bow front master suite features walk-in closet and sparkling bath with tub and walk-in shower. Penthouse level offers high ceilings, multiple skylights and wide-open layout perfect for entertaining. Center-island granite kitchen with Subzero refrigerator opens to huge dining area. Built-in window seat provides the perfect perch from which to work or relax. Spacious sun-filled living room has one of two fireplaces on the third floor. Half bath completes this level. Gleaming maple floors and custom built-ins throughout. Full staircase up to a fabulous roof deck with panoramic skyline views. Includes a parking space behind the building. A beautiful home in the heart of the South End!