This massive apartment is an artful triple mint reconfiguration of 14 original rooms into a 12-room home with 5 bedrooms and 5.5 bathrooms and the flexibility to create even more if needed. Entrance from a private elevator landing is into a central gallery off of which are the living room, dining room and library with fireplace. Three bedrooms and bathrooms are on the opposite side, with a chef's windowed eat-in kitchen and laundry room between. A hallway from the gallery leads to an additional living area comprised of an oversized entertainment room with a powder room and serving kitchen, plus two more bedrooms and bathrooms. There is also an  entrance from a separate elevator if needed, providing maximum flexibility for daily living and/or entertaining. Only the best fixtures and finishes have been utilized throughout, including the finest marble, historically accurate moldings and wainscoting and Waterworks, Lefroy Brooks and P.E. Guerin in the bathrooms. All primary rooms are exterior, with sunny outlooks onto Madison Avenue, East 83rd Street or townhouse gardens. The building is a highly sought after full service white glove prewar cooperative and is pet friendly.