620 Park Avenue, located on the northwest corner of 65th Street, is a distinguished pre-war cooperative designed by J.E.R. Carpenter in 1924 and developed by Starrett Brothers. Known for its exclusivity, the building features just 14 full-floor residences, offering exceptional privacy in a prime Upper East Side location.
The red-brick building is accented by a two-story limestone base, decorative banding, elegant stone quoins, and intricate spandrels. A balustrade now replaces the original cornice, adding a refined touch. Architectural details include banded window surrounds and allowances for discrete air-conditioning units.
The apartments are spacious and well-appointed, often featuring wood-burning or gas fireplaces, expansive living and dining rooms, libraries, eat-in kitchens, and staff quarters. Notable examples include the 10th-floor unit with three bedrooms, a 24-foot living room with a gas fireplace, a library, a 19-foot dining room, a 27-foot kitchen, a laundry room, and a maid’s room.
The building also has a rich history, having been home to notable residents like Mrs. Lucien H. Tyng, who was celebrated for her contributions to the arts and her role in New York society during the early 20th century.
Amenities at 620 Park include a full-time white-glove doorman, a private roof terrace for owners, and a newly added gym in the basement. While the building lacks a garage or balconies, its charm lies in its simplicity and exclusivity.
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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
$640,000
$6,400,000
1
2024
-
-
0
2023
$1,264,706
$10,750,000
1
2022
-
-
0
2021
-
-
0
2020
-
-
0
2019
$789,474
$7,500,000
1
2018
$1,667,946
$11,675,625
1
2017
-
-
0
2016
$1,118,421
$10,625,000
1
2015
-
-
0
2014
$883,333
$7,950,000
1
|
Year
Avg Price / Room (Est)
Avg. Actual Price
Med. Actual Price
Transactions
2013
-
-
0
2012
$1,309,643
$9,167,500
1
2011
$866,667
$7,800,000
1
2010
-
-
0
2009
-
-
0
2008
-
-
0
2007
$881,765
$7,495,000
1
2006
$711,111
$6,400,000
1
2005
-
-
0
2004
$534,634
$4,605,828
2
2003
-
-
0
|
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