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645 Carlton Avenue
Co-op located in Prospect Heights, between Prospect Place & Park Place
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- Recent Sales (3)
- All Units in Building (4)
Overview of 645 Carlton Avenue
645 Carlton Avenue is a pre-war co-op building in Brooklyn's Prospect Heights neighborhood finished in 1910. Situated at 645 Carlton Avenue, between Prospect Place and Park Place, the building contains 4 units and rises 4 stories. The elevatored building's amenities include: intercom and elevator.
4Apartments
View All Past
Sales & Rentals
in Building
Sales & Rentals
in Building
Amenities
- Pre War
- Intercom
- Elevator
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Nearby Subways
- B
- Q
- 2
- 3
- C
Nearby Schools
- Is 340
Grades: 6,7,8 - Ms 266 Park Place Community Middle School
Grades: 6,7,8 - Ps 77
Grades: KG,1,2,3,4,5,6,7,8,9,10,11,12,UG - Ps 282 Park Slope
Grades: PK,KG,1,2,3,4,5,UG - PS 9 Sarah Smith Garnet School (The)
Grades: PK,KG,1,2,3,4,5
- Montessori Day School Brooklyn
Grades: PK,KG - Berkeley Carroll School
Grades: PK,TK,KG,1,2,3,4,5,6,7,8,9,10,11,12 - Luria Academy of Brooklyn
Grades: PK,TK,KG,1,2,3,4,5,6,7,8 - St Francis Xavier School
Grades: PK,TK,KG,1,2,3,4,5,6,7,8 - The Montessori School of New York - Brooklyn
Grades: PK,KG,1,2,3,4,5,6
Sales History
Price/Room (Est)
Why are we displaying the estimated price per room?
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.
Price/Ft2 (Est)
Please note that price/ft2 calculations is from only 82% of total transactions during the period
Sales Summary
View Summary by Apartment Size|
Year
Avg Price / Ft2 (Est)
Median Price / Ft2 (Est)
Avg. Actual Price
Med. Actual Price
Transactions
2025
-
-
-
-
0
2024
-
-
-
-
0
2023
$1,343
$2,350,000
$1,343
$2,350,000
2
2022
$1,177
$1,565,100
$1,177
$1,565,100
1
2021
-
-
-
-
0
2020
-
-
-
-
0
2019
-
-
-
-
0
2018
-
-
-
-
0
2017
-
-
-
-
0
2016
-
-
-
-
0
2015
-
-
-
-
0
2014
$990
$1,785,375
$990
$1,785,375
2
|
Year
Avg Price / Ft2 (Est)
Median Price / Ft2 (Est)
Avg. Actual Price
Med. Actual Price
Transactions
2013
-
-
-
-
0
2012
-
-
-
-
0
2011
-
-
-
-
0
2010
-
-
-
-
0
2009
$489
$1,075,000
$489
$1,075,000
1
2008
$597
$794,000
$597
$794,000
1
2007
-
$762,500
$762,500
1
2006
$569
$1,252,000
$569
$1,252,000
1
2005
$583
$775,000
$583
$775,000
1
2004
-
-
-
-
0
2003
-
$499,999
$499,999
1
Please note that price/ft2 calculations is from only 82% of total transactions during the period
|
Sales History by Apartment Size
View Full Closing History
Show:
Pricing Comparison of Similar Buildings
View Detailed ComparisonAvg. Price / ft2
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RLS IDX Data display by CityRealty.com, LLC.
This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2025 The Real Estate Board of New York, Inc., All rights reserved.
IDX information is provided exclusively for consumers’ personal, non-commercial use and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and for no listing shall the number of bedrooms listed be considered a legal conclusion.
All closed sales data has been provided by the New York City Department of Finance via the Automated City Register Information System (ACRIS). No warranty or representation is made as to the accuracy of any data provided by ACRIS or any other sources.
CityRealty is committed to ensuring digital accessibility for individuals with disabilities. We are continuously working to improve the accessibility of our web experience for everyone, and we welcome feedback and accommodation requests. If you wish to report an issue or seek an accommodation, please contact us at accessibility@cityrealty.com.
All information furnished regarding property for sale, rental or financing is from sources deemed reliable, but no warranty or representation is made as to the accuracy thereof and same is submitted subject to errors, omissions, change of price, rental or other conditions, prior sale, lease or financing or withdrawal without notice. All dimensions are approximate. For exact dimensions, you must hire your own architect or engineer and for no listing shall the number of bedrooms listed be considered a legal conclusion.
All closed sales data has been provided by the New York City Department of Finance via the Automated City Register Information System (ACRIS). No warranty or representation is made as to the accuracy of any data provided by ACRIS or any other sources.
CityRealty is committed to ensuring digital accessibility for individuals with disabilities. We are continuously working to improve the accessibility of our web experience for everyone, and we welcome feedback and accommodation requests. If you wish to report an issue or seek an accommodation, please contact us at accessibility@cityrealty.com.
An equal housing opportunity 
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