Ready for immediate occupancy. Expansive four bedroom, four and a half bath duplex residence with direct elevator entry and northern exposure overlooking historic Franklin Street. The soaring 252 double height main living area creates a dramatic room with airy, light-filled volume, enhanced by dual sets of massive 6x8 windows. All other rooms enjoy gracious ceilings of 1010-113. Interiors, custom-designed by Shigeru Ban, complement the light, open design with grand room proportions and flexible living spaces including a large library/bedroom with full bath, and second level study overlooking the main living area below. The kitchen, which opens to the 419 x 313 great room, features custom white matte lacquer cabinetry, polished Calacatta Lincoln slab marble countertops, Gaggenau gas cook top with externally vented hood, Gaggenau refrigerator in custom white matte lacquer finish, Gaggenau steam oven, Gaggenau full height wine cooler in white matte lacquer finish, and Dornbracht fixtures. The five fixture master bath features a custom Corian vanity with fully incorporated sink, Bianco Dolomiti marble walls and floors, 71 Kaldewei Classic Duo Oval soaking tub, thermostatic temperature control, and radiant heated floors. 5 wide plank white oak flooring throughout. Year-round multi-zone heating and air conditioning; separate service entrance and utility room with side by side LG Large Capacity washing machine and externally vented dryer; private storage unit included with residence.