Incredible Penthouse Duplex in a totally renovated Brownstone. 1725 SF + 2 spacious bedrooms with ensuite baths and custom walk in closets. Huge skylit office/gym. High ceilings and mantled gas Fireplace. Expansive Back Bay views from living room and primary bedroom + bay windows. Stunning kitchen with high-end stone, custom cabinetry and SS appliances. New 4" White Oak HW floors, Central A/C & Bosch laundry. ERV Air Filtration system. Camera entry intercom security plus keyless entry. High speed internet connectivity. All new windows and custom window treatments. Original period detail including Grand Foyer and beautiful walnut entry staircase. Located between Commonwealth Ave and Newbury Street. Available 9/1 or slightly earlier. Ask about quiet pets.