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30 East 21st Street is a pre-war co-op building in Manhattan's Flatiron/Union Square neighborhood, completed in 1897. The 9-story building contains 13 units and features amenities such as an elevator and intercom system.
30 East 21st Street is a pre-war co-op building in downtown Manhattan's Flatiron/Union Square neighborhood finished in 1897. Situated at 30 East 21st Street, between Park Avenue South and Broadway, the building contains 13 units and rises 9 stories. The elevatored building's amenities include: intercom and elevator.
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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.
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