Shh... Many units sell without being publicly listed.
Learn more about off-market listings at 840 Park Avenue!
840 Park Avenue was built in 1912 and has a total of 53 apartments. Located in the Upper East Side, 840 Park Avenue is very close to the 6 subway line.
Amenities at this pre war building include doorman and concierge.
Similar nearby buildings include 860 Park Avenue, 829 Park Avenue and 876 Park Avenue.
Learn more about off-market listings at 840 Park Avenue!
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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.