105 Fifth Avenue is an 11-story Beaux-Arts cooperative in the Flatiron/Union Square neighborhood. Built in 1907 and converted in 1988, the pre-war building contains 41 residential units and offers a blend of historic architecture and modern conveniences.
Residents have access to a range of amenities, including a newly renovated gym, a laundry room, a package room, and private storage cages. The building features a virtual doorman, a full-time superintendent, two passenger elevators, and a large freight elevator.
Located between East 17th and East 18th Streets, 105 Fifth Avenue provides easy access to Union Square and its renowned Greenmarket, as well as an array of shops, restaurants, and cultural institutions. Multiple subway lines and transportation options are within close reach, ensuring seamless connectivity.
Limited off-market opportunities might be available at The Folio House – ideal for those looking to explore listings not currently on the market. Contact us to learn more.
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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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Year
Avg Price / Ft2 (Est)
Median Price / Ft2 (Est)
Avg. Actual Price
Med. Actual Price
Transactions
2025
$1,669
$4,152,500
$1,669
$4,152,500
2
2024
$1,895
$5,995,000
$1,895
$5,995,000
1
2023
$1,254
$1,882,000
$1,254
$1,882,000
1
2022
$1,383
$2,928,333
$1,451
$2,225,000
3
2021
$1,360
$2,400,000
$1,360
$2,400,000
1
2020
$745
$950,000
$745
$950,000
1
2019
$1,125
$3,200,000
$1,125
$3,200,000
2
2018
$1,895
$5,995,000
$1,895
$5,995,000
1
2017
$1,511
$2,017,500
$1,511
$2,017,500
2
2016
$1,340
$2,990,000
$1,373
$2,950,000
4
2015
$1,422
$2,400,000
$1,416
$2,500,000
3
2014
$1,540
$2,695,000
$1,540
$2,695,000
1
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Year
Avg Price / Ft2 (Est)
Median Price / Ft2 (Est)
Avg. Actual Price
Med. Actual Price
Transactions
2013
$1,333
$2,066,667
$1,333
$1,850,000
3
2012
$866
$1,298,269
$866
$1,298,269
1
2011
$918
$1,575,000
$918
$1,575,000
2
2010
$866
$1,966,667
$866
$1,300,000
3
2009
$757
$1,072,581
$757
$1,072,581
2
2008
$935
$1,650,000
$935
$1,650,000
1
2007
$1,174
$2,212,500
$1,166
$1,825,000
4
2006
$1,001
$1,843,625
$1,015
$1,843,750
4
2005
$767
$1,375,000
$767
$1,375,000
2
2004
$840
$1,179,850
$840
$1,179,850
2
2003
$674
$1,155,000
$666
$1,175,000
3
Please note that price/ft2 calculations is from only 88% of total transactions during the period
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