Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
925 UNION Street #4E
Closed For Sale Co-op

$539,000

925 UNION Street #4E

Park Slope, Brooklyn

The Mildred

MLS® #RLS10469884

RLS at REBNY

Listing by The Corcoran Group

1

Bedroom

1

Bath

N/A

Sq. Ft.

1920

Year Built

Quick Summary

Bedrooms 1
Bathrooms 1
Year Built 1920
Ownership Co-op
Maintenance $665.83/mo
Neighborhood Park Slope
Floor 4 of 6

Property Highlights

  • Exposure: North facing
  • Style: Prewar architecture
  • Climate Control: Window Units

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 3
Baths 1 Full
Floor 4 of 6
Exposure North
Cooling Window Units
Pets Yes
Cross Street 8th Avenue & Prospect Park West
Year Built 1920
Architectural Style Prewar
Parcel # 01064-0037-00925-000-000004E

Listing History

Event Date Price Change
Listed Mar 22, 2015 $539,000 -
Currently May 1, 2026 $539,000 -

Description

Peaceful, sunny and quiet one bedroom in great north Park Slope location. This charming prewar home boasts treetop views from its oversized windows, 96 ceilings, inlay hardwood floors, and original moldings throughout. The updated open kitchen has stainless steel appliances including a new dishwasher, new mosaic tile backsplash and a breakfast bar providing additional counter space. Glass-paneled French doors lead into the spacious and airy bedroom with two oversized, outfitted walk-in closets. The windowed en suite bathroom was recently renovated with classic Carrera marble in a herringbone pattern, a new white vanity, new fixtures and a two-paneled mirrored medicine cabinet. The Mildred is a prewar, pet-friendly cooperative elevator building with a live-in super, central laundry and bike storage. Situated in coveted north Park Slope, just a short distance from Grand Army Plaza, the Greenmarket, Botanical Gardens, The Brooklyn Museum, express 2, 3, B and Q trains and all of the shops, restaurants and amenities the neighborhood has to offer. Assessment of $89.40 currently in place.

Features & Amenities

Interior Features

Building Washer Dryer Install Allowed Common Area

Building Information

Financial Details

Maintenance $665.83/mo
Sale Price $539,000

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, 7:50 AM EST

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Location

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925 UNION Street #4E, Park Slope, Kings County • Near 8th Avenue & Prospect Park West

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

1920
Year Built
106 years old
6
Floors
52
Residential Units
R8X
Zoning District
Elevator Apartments

Tax & Assessment

Assessed Value: $3,798,000
Land Value: $243,000
Exemptions: $33,730

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

Lot Area: 9,000 SF
Building Area: 43,032 SF
Built FAR: 4.78
Allowed FAR: 6.02

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 $665.83 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 1920, making it approximately 106 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: RLS10469884
First Listed: 3/22/2015
Closed: 6/25/2015
Contract Date: 3/22/2015

Listing Courtesy of The Corcoran Group - Kristina Leonetti

Listing Contact: (917) 856-0601

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 11:50 AM UTC

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