25 West 15th Street is a boutique co-op building located on a quiet, tree-lined street in Flatiron/Union Square, just north of Greenwich Village. Originally built in 1926 and converted to co-op apartments in 1988, the building has only 7 units and offers low maintenance fees with no underlying mortgage or flip tax. Residents enjoy amenities like video security, basement storage, and FIOS readiness. The building is conveniently close to Union Square, major transportation lines, and popular destinations such as Whole Foods, Trader Joe’s, the Farmer’s Market, and top restaurants and shopping.
Interested in off-market listings at 25 West 15th Street? Some previously listed residences might be available – contact us for insider details on potential opportunities!
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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.
|
Year
Avg Price / Room (Est)
Avg. Actual Price
Med. Actual Price
Transactions
2025
$385,000
$1,540,000
1
2024
-
-
0
2023
-
-
0
2022
-
-
0
2021
-
-
0
2020
-
-
0
2019
$337,500
$2,025,000
1
2018
-
-
0
2017
-
-
0
2016
-
-
0
2015
-
-
0
2014
-
-
0
|
Year
Avg Price / Room (Est)
Avg. Actual Price
Med. Actual Price
Transactions
2013
-
-
0
2012
$341,500
$1,707,500
1
2011
$334,000
$1,670,000
1
2010
-
$1,575,000
1
2009
-
-
0
2008
-
-
0
2007
-
-
0
2006
-
-
0
2005
-
-
0
2004
-
-
0
2003
-
-
0
|
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