Last updated on Jan 29, 2026
725 Union Street
Currently, 1 apartment is for sale.
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- All Apartments For Sale (1) $642 Avg. price/ft2
- All Units in Building (4)
Unit #
Beds
Baths
Size
Price / Ft2
Price
Listed on
Days on Market
1 bed
1.5 baths
3,504 ft2
$642
$2,250,000
Sep 18, 2025
140 days
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#1:
$2,250,000 - 1 bed
#1:
$2,250,000 - 1 bed
Overview of 725 Union Street
725 Union Street is a condo with 4 apartments, located in Park Slope very close to the R subway line.
Similar nearby buildings include 22 Saint Johns Place, 269 Fourth Avenue, 11 Sterling Place and 613 Baltic Street. See more ->
Doorman
None
Type
Condo
Year Built
1920
Apartments
Floors
4
Neighborhood
Park Slope (Brooklyn)
Min Down
20%
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Amenities
- Pre War
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- R
- 2
- 3
- B
- Q
- D
- N
- 4
- 5
Pricing Comparison of Similar Buildings
View Detailed Comparison
between Central Park West & Columbus Avenue
Central Park West
The pinnacle of Upper West Side living. Exceptional condo residences with Central Park views and 50,000 SF of amenities. Early 2025 occupancy | 50% Sold
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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. ©2026 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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