850 Park Avenue is a 12 story prewar co-op designed by the renowned architectural firm Rouse & Goldstone in 1914. Located on the prestigious southwest corner of Park Avenue and 77th Street, this white glove building houses just 51 apartments, ensuring an intimate and exclusive living environment. The building was converted to a cooperative in 1920 and has maintained its reputation as one of the Upper East Side's premier addresses. Notable residents have included fashion designer Kate Spade, adding to the building's cultural cachet.
The architecture showcases Rouse & Goldstone's sophisticated design sensibilities, featuring mottled, roughened brick with a handmade quality that evokes traditional craftsmanship. Christopher Gray of The New York Times praised the building as "an educated design" with "subtlety" that reflects a craft tradition. The building boasts a striking Wedgewood style lobby, arched windows on the second floor, decorative garlands, and an elegant canopied entrance. While the original cornice has been removed over time, the building retains its prewar charm with period architectural details throughout.
Apartments typically feature high ceilings, wood burning fireplaces, and herringbone oak floors. Many units offer generous entertaining spaces with formal living and dining rooms, while corner apartments provide exceptional light and multiple exposures. The building's layouts often include staff quarters, butler's pantries, and semi-private elevator landings.
The full service building provides white glove amenities including a 24 hour doorman, fitness center, basketball court, bike storage, and a children's play area with courtyard. The building is both pet friendly and allows pied-à-terre ownership, with 30% financing permitted and a 2.5% flip tax paid by the buyer. Its prime location offers easy access to Central Park, the Museum Mile, Madison Avenue shopping, and sits conveniently across from Lenox Hill Hospital.
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For some co-ops, instead of price per square foot, we use an estimate of the number of rooms for each sold apartment to chart price changes over time. This is because many co-op listings do not include square footage information, and this makes it challenging to calculate accurate square-foot averages.
By displaying the price per estimated room count, we are able to provide a more reliable and consistent metric for comparing sales in the building. While we hope that this gives you a clearer sense of price trends in the building, all data should be independently verified. All data provided are only estimates and should not be used to make any purchase or sale decision.
Notable past and present residents at 850 Park Avenue