Interested in learning more about the building? There are many great amenities and features for residents in the building. See the full transaction history for 1 Washington Square below.
Mamaroneck, where 1 Washington Square is located, has a median asking price of $230,000 for co-op buildings. For interested buyers, that means the building's median asking price is around 1.00% below the neighborhood's median asking price for co-ops. Which is great news as a buyer may end up finding some relatively affordable units in this building compared to other co-op buildings in the neighborhood.
Unfortunately, there are currently no active listings within the building but our inventory of available units for sale is constantly updating in real time. Check back frequently for updates.
Building Features
Facilities
Parking
Location
Accessibility
Pet Policy
Services
Outdoor Space
Waterfront
53 Past Sales
| Date | Unit | Beds | Baths | Sqft | Price | Closed | Listed By |
|---|---|---|---|---|---|---|---|
|
04/19/2026
|
Studio
|
1 Bath
|
750 ft²
|
$189,000
Studio
1 Bath
750 ft²
|
$187,000
-1.06%
07/31/2026
|
Barbara Cleary
Houlihan Lawrence Inc.
| |
|
08/27/2025
|
1 Bed
|
1 Bath
|
1100 ft²
|
$410,000
1 Bed
1 Bath
1100 ft²
|
$400,000
-2.44%
01/26/2026
|
Gerard Confalone
Weichert Realtors
| |
|
04/11/2025
|
2 Bed
|
2 Bath
|
1500 ft²
|
$779,000
2 Bed
2 Bath
1500 ft²
|
$850,000
+9.11%
08/19/2025
|
Gordana Cacinovic
Houlihan Lawrence Inc.
| |
|
12/05/2024
|
1 Bed
|
1 Bath
|
1093 ft²
|
$379,000
1 Bed
1 Bath
1093 ft²
|
$379,000
02/18/2025
|
Jennifer Marsh
Houlihan Lawrence Inc.
| |
|
05/08/2023
|
1 Bed
|
1 Bath
|
-
|
$250,000
1 Bed
1 Bath
|
$235,000
-6.00%
09/27/2023
|
Katherine McLoughlin
Houlihan Lawrence Inc.
| |
|
01/13/2023
|
2 Bed
|
2 Bath
|
-
|
$579,500
2 Bed
2 Bath
|
$510,000
-11.99%
06/01/2023
|
Maggie Vanderwoude
Houlihan Lawrence Inc.
| |
|
04/05/2022
|
1 Bed
|
1 Bath
|
-
|
$285,000
1 Bed
1 Bath
|
-
-
|
Daniella Ingenito
Compass Greater NY, LLC
| |
|
07/03/2022
|
1 Bed
|
1 Bath
|
-
|
$225,000
1 Bed
1 Bath
|
$199,000
-11.56%
03/22/2023
|
Katherine McLoughlin
Houlihan Lawrence Inc.
| |
|
04/08/2022
|
1 Bed
|
1 Bath
|
1050 ft²
|
$270,000
1 Bed
1 Bath
1050 ft²
|
-
-
|
Eleanor Fein
Weichert Realtors
| |
|
03/21/2022
|
2 Bed
|
2 Bath
|
1400 ft²
|
$525,000
2 Bed
2 Bath
1400 ft²
|
$505,000
-3.81%
07/08/2022
|
Katherine McLoughlin
Houlihan Lawrence Inc.
| |
|
02/07/2022
|
1 Bed
|
1 Bath
|
-
|
$269,900
1 Bed
1 Bath
|
$255,000
-5.52%
09/09/2022
|
Barbara Cleary
Houlihan Lawrence Inc.
| |
|
01/21/2022
|
1 Bed
|
1 Bath
|
-
|
$224,000
1 Bed
1 Bath
|
$217,500
-2.90%
05/11/2022
|
Katherine McLoughlin
Houlihan Lawrence Inc.
| |
|
11/12/2021
|
2 Bed
|
2 Bath
|
-
|
$395,000
2 Bed
2 Bath
|
$390,000
-1.27%
05/05/2022
|
Barbara Cleary
Houlihan Lawrence Inc.
| |
|
10/04/2021
|
3 Bed
|
2 Bath
|
1480 ft²
|
$749,000
3 Bed
2 Bath
1480 ft²
|
$749,000
01/05/2022
|
Kimberly Arenas
Compass Greater NY, LLC
| |
|
09/23/2021
|
2 Bed
|
2 Bath
|
1450 ft²
|
$698,500
2 Bed
2 Bath
1450 ft²
|
$675,000
-3.36%
12/20/2021
|
Jacqueline J. Didier
Houlihan Lawrence Inc.
| |
|
08/19/2021
|
2 Bed
|
2 Bath
|
1460 ft²
|
$429,500
2 Bed
2 Bath
1460 ft²
|
$400,000
-6.87%
12/03/2021
|
R. Janet Demasi
Julia B Fee Sothebys Int. Rlty
| |
|
08/09/2021
|
1 Bed
|
1 Bath
|
1000 ft²
|
$329,000
1 Bed
1 Bath
1000 ft²
|
$350,000
+6.38%
11/04/2021
|
Rosetta Bulfamante
Houlihan Lawrence Inc.
| |
|
03/18/2021
|
1 Bed
|
1 Bath
|
1100 ft²
|
$299,000
1 Bed
1 Bath
1100 ft²
|
$299,000
07/15/2021
|
Katherine McLoughlin
Houlihan Lawrence Inc.
| |
|
03/04/2021
|
1 Bed
|
1 Bath
|
-
|
$295,000
1 Bed
1 Bath
|
$299,000
+1.36%
05/24/2021
|
Marjorie Weschler
Houlihan Lawrence Inc.
| |
|
09/11/2020
|
1 Bed
|
1 Bath
|
-
|
$375,000
1 Bed
1 Bath
|
$365,000
-2.67%
06/01/2021
|
Barbara Cleary
Houlihan Lawrence Inc.
| |
|
09/02/2020
|
2 Bed
|
2 Bath
|
1400 ft²
|
$398,000
2 Bed
2 Bath
1400 ft²
|
$375,000
-5.78%
10/08/2021
|
Bengen Lee
Houlihan Lawrence Inc.
| |
|
06/22/2020
|
2 Bed
|
1 Bath
|
988 ft²
|
$359,000
2 Bed
1 Bath
988 ft²
|
$365,000
+1.67%
10/09/2020
|
Katherine McLoughlin
Houlihan Lawrence Inc.
| |
|
06/11/2020
|
1 Bed
|
1 Bath
|
1065 ft²
|
$295,000
1 Bed
1 Bath
1065 ft²
|
$291,000
-1.36%
09/10/2020
|
Barbara Cleary
Houlihan Lawrence Inc.
| |
|
01/28/2020
|
2 Bed
|
2 Bath
|
1410 ft²
|
$575,000
2 Bed
2 Bath
1410 ft²
|
$575,000
04/01/2020
|
Mary Gail Barry
Compass Greater NY, LLC
| |
|
11/25/2019
|
1 Bed
|
1 Bath
|
1000 ft²
|
$285,000
1 Bed
1 Bath
1000 ft²
|
$262,500
-7.89%
07/13/2020
|
Eleanor Fein
Weichert Realtors
| |
|
04/29/2019
|
1 Bed
|
1 Bath
|
1100 ft²
|
$335,000
1 Bed
1 Bath
1100 ft²
|
$315,000
-5.97%
06/26/2019
|
Katherine McLoughlin
Houlihan Lawrence Inc.
| |
|
09/05/2018
|
2 Bed
|
2 Bath
|
1317 ft²
|
$459,000
2 Bed
2 Bath
1317 ft²
|
$450,000
-1.96%
12/19/2018
|
Elizabeth Diamond
Coldwell Banker Realty
| |
|
10/21/2017
|
2 Bed
|
2 Bath
|
1410 ft²
|
$475,000
2 Bed
2 Bath
1410 ft²
|
$498,750
+5.00%
02/14/2018
|
Barbara Cleary
Houlihan Lawrence Inc.
| |
|
09/28/2017
|
2 Bed
|
2 Bath
|
1410 ft²
|
$525,000
2 Bed
2 Bath
1410 ft²
|
$520,000
-0.95%
01/26/2018
|
Barbara Cleary
Houlihan Lawrence Inc.
| |
|
09/08/2017
|
2 Bed
|
2 Bath
|
1460 ft²
|
$625,000
2 Bed
2 Bath
1460 ft²
|
$652,000
+4.32%
11/21/2017
|
Diana Schwatka
Julia B Fee Sothebys Int. Rlty
| |
|
09/05/2017
|
1 Bed
|
1 Bath
|
1000 ft²
|
$299,000
1 Bed
1 Bath
1000 ft²
|
$295,000
-1.34%
01/23/2018
|
Pollena Forsman
Houlihan Lawrence Inc.
| |
|
06/28/2017
|
1 Bed
|
1 Bath
|
800 ft²
|
$238,888
1 Bed
1 Bath
800 ft²
|
$235,000
-1.63%
10/02/2017
|
Lou Lou Pollak
Houlihan Lawrence Inc.
| |
|
06/27/2016
|
2 Bed
|
2 Bath
|
1364 ft²
|
$435,000
2 Bed
2 Bath
1364 ft²
|
$435,000
12/20/2016
|
Carole Sears
Julia B Fee Sothebys Int. Rlty
| |
|
06/14/2016
|
2 Bed
|
2 Bath
|
1430 ft²
|
$525,000
2 Bed
2 Bath
1430 ft²
|
$556,000
+5.90%
09/08/2016
|
Pollena Forsman
Houlihan Lawrence Inc.
| |
|
05/26/2016
|
1 Bed
|
1 Bath
|
1040 ft²
|
$335,000
1 Bed
1 Bath
1040 ft²
|
$325,000
-2.99%
10/05/2016
|
Wendy McManus
Coldwell Banker Res Brokerage
| |
|
10/08/2015
|
1 Bed
|
1 Bath
|
1040 ft²
|
$310,000
1 Bed
1 Bath
1040 ft²
|
$302,000
-2.58%
04/14/2016
|
Barbara Cleary
Houlihan Lawrence Inc.
| |
|
06/18/2015
|
2 Bed
|
2 Bath
|
1410 ft²
|
$489,000
2 Bed
2 Bath
1410 ft²
|
$482,500
-1.33%
09/11/2015
|
Barbara Cleary
Houlihan Lawrence Inc.
| |
|
03/04/2015
|
2 Bed
|
2 Bath
|
1460 ft²
|
$449,000
2 Bed
2 Bath
1460 ft²
|
$482,500
+7.46%
05/20/2015
|
Mimi Magarelli
Julia B Fee Sothebys Int. Rlty
| |
|
01/21/2015
|
2 Bed
|
2 Bath
|
1440 ft²
|
$469,000
2 Bed
2 Bath
1440 ft²
|
$456,000
-2.77%
05/01/2015
|
Ellen Lee
Houlihan Lawrence Inc.
| |
|
09/26/2014
|
2 Bed
|
2 Bath
|
1410 ft²
|
$459,000
2 Bed
2 Bath
1410 ft²
|
$458,000
-0.22%
12/22/2014
|
Barbara Cleary
Houlihan Lawrence Inc.
| |
|
06/19/2014
|
1 Bed
|
1 Bath
|
1080 ft²
|
$275,000
1 Bed
1 Bath
1080 ft²
|
$275,000
10/15/2014
|
Eleanor Fein
Weichert Realtors
| |
|
04/15/2014
|
1 Bed
|
1 Bath
|
1093 ft²
|
$289,000
1 Bed
1 Bath
1093 ft²
|
$285,000
-1.38%
07/10/2014
|
Barbara Cleary
Houlihan Lawrence Inc.
| |
|
08/15/2013
|
1 Bed
|
1 Bath
|
1093 ft²
|
$279,000
1 Bed
1 Bath
1093 ft²
|
$264,500
-5.20%
12/05/2013
|
Barbara Cleary
Houlihan Lawrence Inc.
| |
|
05/03/2013
|
1 Bed
|
1 Bath
|
1100 ft²
|
$249,000
1 Bed
1 Bath
1100 ft²
|
$249,000
01/17/2014
|
Katherine McLoughlin
Houlihan Lawrence Inc.
| |
|
04/30/2013
|
1 Bed
|
1 Bath
|
988 ft²
|
$324,000
1 Bed
1 Bath
988 ft²
|
$310,000
-4.32%
08/02/2013
|
Linda Filby
Compass Greater NY, LLC
| |
|
01/23/2013
|
2 Bed
|
2 Bath
|
-
|
$449,000
2 Bed
2 Bath
|
$425,000
-5.35%
05/15/2013
|
Barbara Cleary
Houlihan Lawrence Inc.
| |
|
09/14/2012
|
1 Bed
|
1 Bath
|
1084 ft²
|
$225,000
1 Bed
1 Bath
1084 ft²
|
$220,000
-2.22%
01/28/2013
|
Eleanor Fein
Weichert Realtors
| |
|
09/11/2012
|
1 Bed
|
1 Bath
|
1050 ft²
|
$299,000
1 Bed
1 Bath
1050 ft²
|
$257,500
-13.88%
06/20/2013
|
Elizabeth Diamond
Coldwell Banker Realty
| |
|
08/14/2012
|
2 Bed
|
2 Bath
|
1430 ft²
|
$460,000
2 Bed
2 Bath
1430 ft²
|
$425,000
-7.61%
04/23/2013
|
Candace Steiner
Houlihan Lawrence Inc.
| |
|
05/03/2012
|
Studio
|
1 Bath
|
625 ft²
|
$110,000
Studio
1 Bath
625 ft²
|
$94,500
-14.09%
08/07/2012
|
Penny Weiner
Julia B Fee Sothebys Int. Rlty
| |
|
02/24/2012
|
1 Bed
|
1 Bath
|
1080 ft²
|
$268,000
1 Bed
1 Bath
1080 ft²
|
$255,000
-4.85%
07/26/2012
|
Marcia Minassian
Houlihan Lawrence Inc.
| |
|
02/15/2012
|
3 Bed
|
3 Bath
|
2540 ft²
|
$825,000
3 Bed
3 Bath
2540 ft²
|
$815,000
-1.21%
05/24/2012
|
Barbara Cleary
Houlihan Lawrence Inc.
| |
|
01/24/2012
|
2 Bed
|
2 Bath
|
1400 ft²
|
$285,000
2 Bed
2 Bath
1400 ft²
|
$272,500
-4.39%
06/07/2012
|
Pilar Finnell
Julia B Fee Sothebys Int. Rlty
|
About Westchester
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Phone: 425-283-2930
Address: 335 Madison Avenue, New York, NY 10017