The charm of a prewar townhouse with the exemplary services of one of Park Avenue's finest cooperatives this duplex maisonette was originally twelve rooms and has been perfectly redesigned into nine.  Located on a sunny northwest corner it has been meticulously and breathtakingly renovated from top to bottom.  The Venetian plaster foyer walls and limestone floors give one a glimpse of the stunning home that awaits you.  The corner living room with it's exquisite millwork is spacious, well-proportioned, bright and inviting in both sunshine and it's wood-burning fireplace.  A south facing den off the foyer is a beautiful nook for work or relaxation.  The formal dining room along East 76th Street, also with wood burning fireplace, is a grand space able to accommodate an intimate supper or a fabulous dinner party.  The chef's kitchen is also a family kitchen with professional grade, stainless steel appliances, granite counter tops, plenty of counter-space and storage but also a wonderful place  to dine or do homework.  A laundry room is conveniently situated off the kitchen and there is a powder room off the foyer.  A broad staircase brings one to the second floor where there are four sunny bedrooms and four windowed baths.  The master bedroom is a quiet sanctuary with separate dressing areas.  All of the bedrooms are spacious, bright and have baths en suite.  The building's elevator can bring one directly to the second floor of this home.  Central air conditioning and sound system throughout. Outside staff room/storage on high floor.