781 Union Street - Park Slope, Brooklyn

Apartments
Overview & Photos
Maps
Ratings & Insider Info
Floorplans
Sales Data & Comps
Similar Buildings
All Units

781 Union Street

co-op located in Park Slope, between Fifth Avenue & Sixth Avenue

Overview of 781 Union Street

781 Union Street was built in 1912 and has a total of 8 apartments. Located in Park Slope, 781 Union Street is a short walk to the 2, 3, B, Q and R subway lines.

Year Built

1912

Apartments

Floors

Neighborhood

Park Slope (Brooklyn)

Min Down

20%

8Apartments

View All Past
Sales & Rentals
in Building

Area Map StreetView

{ "key" : "AIzaSyDquABdSLhathmwfnoTcYwA1BY6coZZyZk", "lat": 40.67589, "lng": -73.97843, "marker": { "icon": "https://img3.cityrealty.com/neo/i/w/amenities/base.png" } }

Maps &
3D Aerial Views

View school info, local attractions, transportation options & more.

Experience amazing 3D aerial maps and fly throughs.

Nearby Subways

at 4th Ave 0.26 miles

at Flatbush Ave and Park Pl 0.33 miles

at Flatbush Ave 0.38 miles

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)

View Full Closing History

Sales Summary

View Summary by Apartment Size

Sales History by Apartment Size

View Full Closing History

Show:

Pricing Comparison of Similar Buildings

View Detailed Comparison

Alternate Address

781 union street

The Henry

between Amsterdam Avenue & Broadway

Broadway Corridor

Exquisite and Inviting Upper West Side condos. A remarkable blend of elegance and modern luxury by Robert A.M. Stern Architects. Sumptuous amenities for socializing, entertainment, wellness, and pure joy.

1 beds starting at $2,475,000
4 beds starting at $6,550,000
5 beds starting at $8,800,000
6+ beds starting at $17,000,000

Learn More

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.

An equal housing opportunity

{"1":[40.775,-73.94,"East Side","_es"],"2":[40.79,-73.99,"West Side","_ws"],"11":[40.76,-73.98,"Midtown","_m"],"3":[40.736,-73.99,"Downtown","_d"],"13":[40.711309,-74.01,"Financial
District\/BPC","_fd"],"4":[40.682676,-73.973007,"Brooklyn","_b"],"12":[40.8444,-73.9376,"Upper Manhattan","_um"],"5":[40.7477089,-73.930411,"LIC \/ Queens","_qns"],"18":[40.8889782,-73.9025,"The Bronx","_bx"]}

This is your member's center

781 Union Street

co-op located in Park Slope, between Fifth Avenue & Sixth Avenue

Overview of 781 Union Street

Maps & 3D Aerial Views

Nearby Subways

Sales History

Why are we displaying the estimated price per room?

Sales Summary

Sales History by Apartment Size

Pricing Comparison of Similar Buildings

Alternate Address

Buy & Sell

Rent

Buildings

Insights

Company

Maps &
3D Aerial Views