Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $1,550,000

· Closed June 25, 2025

904 Union Street #1C
Closed For Sale Co-op

$1,550,000

904 Union Street #1C

Park Slope, Brooklyn

MLS® #RLS20010169

RLS at REBNY

Listing by Compass

2

Bedrooms

2.5

Baths

N/A

Sq. Ft.

1910

Year Built

Quick Summary

Bedrooms 2
Bathrooms 3 full, 1 half
Year Built 1910
Ownership Co-op
Maintenance $1,272/mo
Neighborhood Park Slope
Floor 1 of 4

Property Highlights

  • Exposure: South facing
  • Style: WalkUp architecture
  • Character: Pre-war building (1910)

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 8
Baths 2 Full, 1 Half
Floor 1 of 4
Exposure South
Pets Yes, CatsOk, DogsOk
Year Built 1910
Architectural Style WalkUp
Flooring Ceramic Tile, Hardwood
Furnished Unfurnished
Basement Full
Parcel # 01066-0023-00904-000-000001C
Block/Lot 01066/0023

Listing History

Event Date Price Change
Listed Mar 19, 2025 $1,575,000 -
Currently Jun 10, 2026 $1,550,000 -1.6%

Description

Perfectly positioned on the North/Center Slope border, this unique 2BD/2.5BA triplex feels like a private townhouse. The main living area offers a south-facing living room with exposed brick, original woodwork, bay windows along with an open kitchen with space for dining. The custom-designed kitchen from German Kitchen Center is equipped with stainless steel appliances, including a GE Café range with built-in microwave, built-in Bosch dishwasher, and KitchenAid refrigerator, quartz countertops, Grohe faucet, ample cabinetry, and walk-in pantry/coat closet. A full bath with tub is located off the kitchen. Up the spiral staircase are two spacious bedrooms, including a primary suite with a walk-in closet and a renovated ensuite bath with subway tile, a glass-enclosed shower, and Toto toilet. The generously proportioned second bedroom is illuminated by south-facing bay windows and features built-ins and exposed brick. There are high ceilings and hardwood floors throughout the upper levels. The versatile lower level was fully redone in 2014, and features a spacious rec room that can be used as guest space, playroom, home office, gym, media room, creative studio, and more. There is also a half bath with penny tile floors and a cozy den/study area with mounted bookshelves and access to the patio and backyard that is shared with just one other unit. Sleek Runtal radiators are also found on this level. The boutique pre-war co-op comes with free laundry (easily accessed from the unit’s basement level), dedicated storage, and bike storage. The prime Park Slope location is within close proximity to Prospect Park, Grand Army Plaza, the 2/3 trains, Brooklyn Public Library, shopping along 7th Avenue, and the Park Slope Food Coop. Cats and small, quiet dogs are considered on a case-by-case basis.

Features & Amenities

Interior Features

Pantry Building Washer Dryer Install Allowed Common On Floor Common Area Flooring: Ceramic Tile, Hardwood

Exterior Features

Private Outdoor Space Over60 Sqft Private Yard

Appliances

Dishwasher Stainless Steel Appliances

Building Information

Building Data View Compliance & Permits
Total Units 12
Stories 4
Style WalkUp

Financial Details

Maintenance $1,272/mo
Original Price $1,575,000
Sale Price $1,550,000
Previous Price $1,575,000

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

127

Median Asking Price

$1.85M

Median $/Sqft

$1,386

Avg Days on Market

N/A

New This Week

16

Price Reduced

20%

Sold (30 Days)

22

Median Sale Price

$2.24M

Live data from RLS at REBNY • Updated 6/10/26, 4:30 AM EST

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Location

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904 Union Street #1C, Park Slope, Kings County

Building Information

Official NYC property records for this building

1910
Year Built
116 years old
4
Floors
12
Residential Units
R7B
Zoning District
Walk-Up Apartments

Tax & Assessment

Assessed Value: $702,000
Land Value: $31,050
Exemptions: $2,290

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

Lot Area: 2,250 SF
Building Area: 7,252 SF
Built FAR: 3.22
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 $1,272 per month. Confirm the exact amount with the listing broker before making an offer.

The current listed annual property tax is $0, or roughly $0 per month. Verify the current assessment with your attorney before closing.

This property has 2 bedrooms and 2 full bathrooms and 1 half bathroom.

According to MLS records, the building was constructed in 1910, making it approximately 116 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 [email protected]. 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: RLS20010169
First Listed: 3/19/2025
On Market: 3/19/2025
Price Changed: 6/26/2025
Closed: 6/25/2025
Contract Date: 2/6/2025

Listing Courtesy of Compass - Carol Kai-Ju Wang

Listing Contact: (347) 422-7652

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 6/10/2026 at 8:30 AM UTC

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