Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
781 UNION Street #4F
Closed For Sale Co-op

$520,000

781 UNION Street #4F

Park Slope, Brooklyn

MLS® #RLS10052787

RLS at REBNY

Listing by The Corcoran Group

1

Bedroom

1

Bath

N/A

Sq. Ft.

1912

Year Built

Quick Summary

Bedrooms 1
Bathrooms 1
Year Built 1912
Ownership Co-op
Maintenance $370/mo
Neighborhood Park Slope
Floor 4 of 4

Property Highlights

  • Exposure: South facing
  • Style: Prewar architecture
  • Character: Pre-war building (1912)

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 2
Baths 1 Full
Floor 4 of 4
Exposure South
Pets Yes
Cross Street 5 AVENUE and 6 AVENUE
Year Built 1912
Architectural Style Prewar
Parcel # 00953-0055-00781-000-000004F

Listing History

Event Date Price Change
Listed Feb 11, 2015 $450,000 -
Currently May 1, 2026 $520,000 +15.6%

Description

Enjoy amazing southern light and great views while perched on the top floor of this fantastically located Union Street coop. With beautifully finished original, wide-plank hardwood floors throughout, the apartment has a large bedroom and a renovated, eat-in kitchen with pressed tin back splash, Caesarstone counters, and stainless steel appliances. Large windows and great ceiling height add to the immense charm and character of this sunny, well-proportioned home. You'll find bike storage, a separate, caged storage unit and laundry in the basement. With super low monthly charges (the building has no underlying mortgage), great subway access, as well as fantastic proximity to Prospect Park, Union Market and countless amenities on 5th and 7th Avenues, this would be a great place to call home. (Pets on approval.) First showing at the open house Sunday February 15th from 2:00 to 3:30.

Features & Amenities

Interior Features

Eat In Kitchen Building Washer Dryer Install Allowed Common Area

Building Information

Building Data View Compliance & Permits
Total Units 8
Stories 4
Style Prewar

Financial Details

Maintenance $370/mo
Original Price $450,000
Sale Price $520,000
Previous Price $450,000

Park Slope is a well-known Brooklyn neighborhood, recognized for its tree-lined streets and preserved brownstones. Bordering the western edge of Prospect Park, the neighborhood offers convenient access to green space. The real estate market features a mix of historic townhouses, cooperatives, and modern condominiums, within walking distance of the park.

Park Slope Live Market Data

View Neighborhood

Active Listings

112

Median Asking Price

$1.72M

Median $/Sqft

$1,376

Avg Days on Market

N/A

New This Week

11

Price Reduced

17%

Sold (30 Days)

23

Median Sale Price

$1.64M

Live data from RLS at REBNY • Updated 5/1/26, 9:12 AM EST

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Location

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781 UNION Street #4F, Park Slope, Kings County • Near 5 AVENUE and 6 AVENUE

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

1912
Year Built
114 years old
4
Floors
8
Residential Units
R6A
Zoning District
Walk-Up Apartments

Tax & Assessment

Assessed Value: $1,426,500
Land Value: $14,400
Exemptions: $2,290

Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.

Lot Area: 2,375 SF
Building Area: 6,500 SF
Built FAR: 2.74
Allowed FAR: 3

Source: NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning (data.cityofnewyork.us)

Want help estimating ownership costs or understanding building compliance? Let's discuss

Frequently Asked Questions

Common questions about this property

The current listed monthly maintenance are $370 per month. Confirm the exact amount with the listing broker before making an offer.

This property has 1 bedroom and 1 full bathroom.

According to MLS records, the building was constructed in 1912, making it approximately 114 years old.

This listing is a co-op (stock cooperative). Buyers purchase shares in a corporation rather than real property, and the board must approve all sales.

Pets are permitted at this property. Contact the listing broker for weight limits or breed restrictions.

To schedule a private showing, contact Milton Coste at (917) 416-7433 or mcoste@kwnyc.com. Per REBNY guidelines effective 2025, a Buyer Representation Agreement is required before a buyer's broker can show you properties. You may attend open houses independently without one.

Have a question not answered here?

(917) 416-7433
MLS® ID: RLS10052787
First Listed: 2/11/2015
Price Changed: 5/6/2015
Closed: 6/17/2015
Contract Date: 2/11/2015

Listing Courtesy of The Corcoran Group - Heather McMaster

Listing Contact: (917) 803-4219

Listing information for certain New York City properties provided courtesy of the Real Estate Board of New York's Residential Listing Service (the "RLS"). The information contained in this listing has not been verified by the RLS and should be verified by the consumer. The listing information provided here is for the consumer's personal, non-commercial use. Retransmission, redistribution or copying of this listing information is strictly prohibited except in connection with a consumer's consideration of the purchase and/or sale of an individual property. This listing 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. This advertisement does not suggest that the broker has a listing in this property or properties or that any property is currently available.

Broker Commission Disclosure: Broker commissions are not set by law and are fully negotiable.

Buyer Notice: Planning to work with a buyer's broker? A Buyer Representation Agreement is required before your broker can show you properties, per REBNY/UCBA guidelines (effective 2025). You may attend open houses independently without one.

RLS at REBNY

RLS Data display by Keller Williams NYC. Data last updated on 5/1/2026 at 1:12 PM UTC

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