Ideally situated on Park Avenue and 73rd Street, in one of the most revered prewar cooperative buildings on the upper east side, this stunning and elegant duplex is both an architectural tour de force and the ideal residence for family living and grand scale entertaining. Boasting a grand sweep of sun-lit entertaining rooms and five nice big bedrooms with unexpectedly open and charming views, this high floor apartment with many original architectural elements intact and square proportions is just a delight. The gracious 28-foot Gallery with sweeping staircase opens to a hugely grand Living Room that enjoys 30 feet of Park Avenue frontage. A handsome wood-paneled Library also facing onto Park Avenue is adjacent, as is a large and elegant Dining Room. These three impressive rooms all feature wood burning fireplaces and 11-foot ceilings, and are complimented by beautiful moldings and period herringbone floors. Additionally, there is a Powder Room and coat closet, plus a vast chef’s Kitchen featuring four massive windows with views over the townhouses to the east. This fabulous kitchen is equipped with state-of-the-art appliances, and is one of the best and brightest eat-in kitchens on Park Avenue. Upstairs the private quarters include a glorious Master Bedroom suite with yet another wood burning fireplace, an office, a large bathroom and major closets. There are four additional bedrooms and three bathrooms, each with plenty of closets, abundant sunlight and nice views. Conveniently the apartment can be entered off the main elevator on this floor as well. Both glamorous and gracious, not to mention practical thanks to a marvelous layout, this apartment is a superb testament to the genius of Rosario Candela, New York’s most celebrated residential architect. There are two additional staff rooms available for separate sale on the 2nd floor. This coveted residence is in a much sought-after full-service cooperative which is impeccably staffed and provides its tenant shareholders with a private gym and storage areas. Financing is not permitted. There is a 3% flip tax.