201 West 21st Street was built in 1961 and converted to co-op apartments in 1981. The Piermont has a total of 130 apartments and is located in Chelsea, very close to the M, 1, F, C and E subway lines.
There are currently 3 apartments for sale at 201 West 21st Street, ranging in price from $435,000 to $850,000. The most recent closing in the building was in August 2025 - a six plus bedroom that closed for $445,000.
During the past two years, 11 apartments have sold: the most expensive was a one bedroom that sold for $755,000, and the least expensive was a six plus bedroom that sold for $430,000.
Amenities at this post war building include doorman, rooftop terrace, bike room and resident storage.
Similar nearby buildings include 200 West 20th Street, 300 West 23rd Street, 85 Eighth Avenue and 405 West 23rd 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.