Last updated on Feb 26, 2026

725 Union Street

All Apartments For Sale (1)
All Units in Building (4)

Apt. 1
Quick view: 18 photos

1 bed

1.5 baths

3,504 ft²

$642

$2,250,000 in contract

Sep 18, 2025

189 days

in contract

#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

4 (view all units)

Floors

Neighborhood

Park Slope (Brooklyn)

Min Down

20%

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Amenities

Pre War

Area Map StreetView

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at 4th Ave 0.13 miles

at Flatbush Ave 0.41 miles

at Flatbush Ave and Park Pl 0.44 miles

at 4th Ave and Pacific 0.49 miles

Pricing Comparison of Similar Buildings

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Editorial Coverage

Enduring character: NYC homes with authentic exposed brick walls from $275K Tuesday, January 13, 2026

Brooklyn Point

between Gold Street & Flatbush Avenue Extension

Downtown Brooklyn

Tax-abated condos with panoramic NYC views Studio - 3-bed condos starting from $1M Immediate Occupancy | Call to schedule your tour

Studios starting at $950,000
1 beds starting at $1,300,000
2 beds starting at $1,995,000
3 beds starting at $2,995,000

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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.

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An equal housing opportunity

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725 Union Street

Overview of 725 Union Street

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