16 East 23rd Street - Flatiron/Union Square
- Apartments
- Overview & Photos
- Maps
- Floorplans
- Sales Data & Comps
- Similar Buildings
- All Units
16 East 23rd Street is a 7-story pre-war co-op building in downtown Manhattan's Flatiron/Union Square neighborhood finished in 1900. This intimate, 6-unit building has a common roof deck and basement storage space, and select units have private terraces. Its address between Broadway and Park Avenue South puts it across from Madison Square Park and close to Eataly, Fifth Avenue shopping, popular Gramercy restaurants, and several transportation options.
View school info, local attractions, transportation options & more.
Experience amazing 3D aerial maps and fly throughs.
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.
6sqft delivers the latest on real estate, architecture, and design, straight from New York City.
Like us on Facebook to keep up with the trends and 