Exceptionally grand and elegant simplex comprised of 15 into 12 rooms. Situated in one of Carnegie Hill's most prestigious and sought after JER Carpenter designed cooperatives, this apartment incorporates all of the stunning architectural elements that distinguish the great buildings of the late 1920s in NYC. The corner residence is perfectly positioned to enjoy the lovely leafy tree line views of Central Park as well as the newly landscaped Rhododendron Mile. Fabulous sun-lit Southern exposures over East 87th Street also grace the apartment with amazing light throughout the day all year long. Upon entry, a private elevator landing opens to an enormous Gallery which anchors the principal entertaining rooms, all overlooking Central Park. The lovely corner Living Room with wood burning fireplace enjoys both southern and western exposures. Adjacent there is a proper Library and a formal Dining Room, which also boasts a wood burning fireplace. The current configuration of the public rooms includes an Alcove off of the Gallery, that was carved from the original Pantry, and a wonderful formal Study that was designed to alternately function as a bedroom. Down an impressively grand 7 ft. wide hallway, the private quarters include a large and gracious Master Bedroom Suite with an enlarged ensuite Bath and fabulous Dressing Room. There are also three big additional south facing Bedrooms with attractive side street tree-line views, ensuite Baths and very ample closet space. Plus a fifth Bedroom with ensuite bath across the hall. A nice big Kitchen with Pantry and a spacious Staff and Laundry Area complete the layout of this cheerful and most impressive Fifth Avenue residence. And overall, the circular floor plan of the apartment affords tremendous versatility and easily allows for big entertaining as well as a cozy more "at home" lifestyle.