Ansonia Court is a prewar cooperative constructed in 1881, located at 420 12th Street, and centered on a lush private courtyard. A doorman and live-in superintendent are on staff, and amenities include a package room and bike storage. Pets are welcome.
Ansonia Court is located in the heart of South Slope, only one block from Prospect Park. Union Market, popular local dining and nightlife, and the F/G trains at 7th Avenue are a short distance from the building.
Limited off-market opportunities might be available at Ansonia Court – 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 / Room (Est)
Avg. Actual Price
Med. Actual Price
Transactions
2025
$367,143
$2,570,000
1
2024
$427,750
$1,836,667
3
2023
$443,056
$1,948,333
3
2022
$392,308
$2,550,000
1
2021
$351,293
$1,751,300
5
2020
$361,865
$2,048,750
2
2019
$320,167
$1,513,500
5
2018
$362,045
$1,893,750
2
2017
$370,833
$1,533,333
3
2016
$298,111
$1,323,707
4
2015
$313,244
$1,490,250
4
2014
$292,543
$1,583,750
4
|
Year
Avg Price / Room (Est)
Avg. Actual Price
Med. Actual Price
Transactions
2013
$253,643
$1,252,750
6
2012
$210,000
$1,000,000
2
2011
$198,260
$798,125
4
2010
$170,125
$742,625
4
2009
$152,813
$685,250
2
2008
$183,645
$1,012,500
4
2007
$177,917
$931,667
3
2006
$167,020
$753,826
4
2005
$153,692
$699,000
2
2004
$130,549
$649,125
8
2003
$131,321
$567,000
6
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