521 Park Avenue was designed by William Boring, an American-born architect who studied architecture at the Ecole des Beaux-Arts before returning to New York and joining the firm of McKim, Mead and White. The limestone building has been honored with numerous international design awards, including a gold medal for architecture from the Exposition Universelle in Paris in 1900.
521 Park Avenue was constructed as a cooperative in 1911, converted to a condominium in 1987, and currently has 24 units. The building has a full-time doorman, a live-in superintendent, a fitness center, and private storage that transfers with each unit. It also benefits from a location near Central Park, world-renowned restaurants, and top shopping. Pets, pied-a-terres, and flexible financing are allowed.
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Year
Avg Price / Ft2 (Est)
Median Price / Ft2 (Est)
Avg. Actual Price
Med. Actual Price
Transactions
2025
-
-
-
-
0
2024
$1,248
$3,312,500
$1,248
$3,312,500
2
2023
-
-
-
-
0
2022
-
-
-
-
0
2021
$2,068
$3,947,500
$2,068
$3,947,500
2
2020
-
-
-
-
0
2019
-
-
-
-
0
2018
$1,772
$2,396,667
$1,796
$1,900,000
3
2017
$1,815
$1,650,000
$1,815
$1,650,000
1
2016
$2,473
$3,900,000
$2,473
$3,900,000
1
2015
$1,925
$4,700,000
$1,925
$4,700,000
1
2014
-
-
-
-
0
|
Year
Avg Price / Ft2 (Est)
Median Price / Ft2 (Est)
Avg. Actual Price
Med. Actual Price
Transactions
2013
$2,957
$5,850,000
$2,957
$5,850,000
2
2012
$2,212
$3,658,333
$2,270
$2,025,000
3
2011
$1,485
$1,350,000
$1,485
$1,350,000
1
2010
$1,736
$1,720,000
$1,736
$1,720,000
1
2009
-
-
-
-
0
2008
-
-
-
-
0
2007
$2,212
$2,275,000
$2,212
$2,275,000
2
2006
$2,336
$7,450,000
$2,336
$7,450,000
1
2005
-
-
-
-
0
2004
$1,323
$1,400,000
$1,323
$1,400,000
1
2003
$1,998
$2,050,000
$1,998
$2,050,000
1
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