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Learn more about off-market listings at 23 East 20th Street!
23 East 20th Street
Co-op located in Flatiron/Union Square, between Park Avenue South & Broadway
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- Recent Sales (1)
- All Units in Building (7)
Overview of 23 East 20th Street
23 East 20th Street was built in 1920 and converted to co-op apartments in 2009. 23 East 20th Street has a total of 7 apartments and is located in Flatiron/Union Square, very close to the N, Q, R, 4, 5, 6 and L subway lines.
Similar nearby buildings include 48 Bond Street, 1228 Madison Avenue and 333 East 119th Street.
Year Built
1920
Converted:
2009
Apartments
7
Floors
8
Neighborhood
Flatiron/Union Square (Manhattan)
Min Down
20%
7Apartments
View All Past
Sales & Rentals
in Building
Sales & Rentals
in Building
Amenities
- Intercom
- Elevator
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"lng": -73.98918,
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Nearby Subways
- 6
- N
- R
- Q
- 4
- 5
- L
- M
- F
- 1
- 2
- 3
Sales History
Price/Room (Est)
Why are we displaying the estimated price per room?
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.
Price/Ft2 (Est)
Sales Summary
View Summary by Apartment SizeSales History by Apartment Size
View Full Closing History
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Pricing Comparison of Similar Buildings
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RLS IDX Data display by CityRealty.com, LLC.
This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2025 The Real Estate Board of New York, Inc., All rights reserved.
IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and for no listing shall the number of bedrooms listed be considered a legal conclusion.
All closed sales data has been provided by the New York City Department of Finance via the Automated City Register Information System (ACRIS). No warranty or representation is made as to the accuracy of any data provided by ACRIS or any other sources.
CityRealty is committed to ensuring digital accessibility for individuals with disabilities. We are continuously working to improve the accessibility of our web experience for everyone, and we welcome feedback and accommodation requests. If you wish to report an issue or seek an accommodation, please contact us at accessibility@cityrealty.com.
All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and for no listing shall the number of bedrooms listed be considered a legal conclusion.
All closed sales data has been provided by the New York City Department of Finance via the Automated City Register Information System (ACRIS). No warranty or representation is made as to the accuracy of any data provided by ACRIS or any other sources.
CityRealty is committed to ensuring digital accessibility for individuals with disabilities. We are continuously working to improve the accessibility of our web experience for everyone, and we welcome feedback and accommodation requests. If you wish to report an issue or seek an accommodation, please contact us at accessibility@cityrealty.com.
An equal housing opportunity 
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