Ideally situated on Park Avenue and 77th Street in one of the finest pre-war cooperatives, this fully renovated 9 into 8 room apartment offers sunny open exposure over Park Avenue, beautifully scaled rooms and a flexible layout. From a semi-private landing, one enters the spacious Gallery with access to each of the lovely entertaining rooms and separate bedroom wing. The gorgeous Park Avenue-facing Living Room is 23 feet long, has two oversized windows, and a wood burning fireplace. Across the gallery is gracious Formal Dining Room (now being used as a den), and comfortable Library (currently a Dining Room). The state-of-the-art windowed Kitchen features handsome marble countertops, a suite of top-of-the-line appliances, as well as a large Pantry Hall, Laundry area, Staff Room, and full Staff Bathroom. The private quarters wrap the south side of the building and include a sun drenched corner Master Bedroom Suite, with windows facing East over Park Avenue and another facing south, generous closets, and Marble Bathroom. There are two additional bright Bedrooms (one if which is also a corner with windows facing south and west), an additional marble Bathroom, and a Powder Room just off of the gallery. 850 Park Avenue is a full service pre-war cooperative building designed in 1914 by Rouse & Goldstone. Amenities include bike storage, fitness room, basketball court, courtyard and a play area. The building is pet friendly and allows 30% financing. There is a 2.5% flip tax payable by buyer.