15 West 84th Street was built in 1947 and converted to co-op apartments in 1984. 15 West 84th Street has a total of 82 apartments and is located in the Upper West Side, very close to the B and C subway lines.
There are currently 2 apartments for sale at 15 West 84th Street, ranging in price from $575,000 to $2,895,000. The most recent closing in the building was in August 2025 - a three bedroom that closed for $795,000.
Amenities at this post war building include doorman, resident storage and washer/dryer in building.
Similar nearby buildings include 101 West 81st Street, 609 Columbus Avenue, 255 West 84th Street and 257 West 86th Street.
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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.