Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
889 Union Street #Garden
Closed For Sale Co-op

$850,000

$773 per sq ft

889 Union Street #Garden

Park Slope, Brooklyn

MLS® #RLS10070498

RLS at REBNY

Listing by The Corcoran Group

2

Bedrooms

1

Bath

1,100

Sq. Ft.

1889

Year Built

Quick Summary

Bedrooms 2
Bathrooms 1
Living Area 1,100 sq ft
Year Built 1889
Ownership Co-op
Maintenance $950/mo
Neighborhood Park Slope
Floor 1

Property Highlights

  • Style: Prewar architecture
  • Character: Pre-war building (1889)

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 4
Baths 1 Full
Floor 1
Pets Yes
Cross Street 7th/8th
Year Built 1889
Living Area 1,100 sq ft
Architectural Style Prewar

Listing History

Event Date Price Change
Listed Mar 16, 2015 $850,000 -
Currently May 1, 2026 $850,000 -

Description

Step into spring with your very own large private garden, a renovated and flexible duplex layout, and charming historic detail, on the ground floor of an intimate Richardsonian Romanesque style townhouse that has been converted into a 4-unit coop right in the center of Park Slopes best amenities. Currently used as a two-bedroom upstairs, and guest room/home office downstairs, the flexible layout offers multiple options that work for many needs, whether you work at home, or simply need multiple sleeping or work spaces. Set back from the street for privacy by an oversized front garden, this special home has been lovingly restored by its current owner and features stunning hand-carved window and door moldings, inlaid wood floors, a walk-in master closet, garden-facing bay-windows, and a breathtaking decorative wood and marble mantelpiece. An open and renovated chefs kitchen includes a Jenn-Air stainless range, glass and wood custom cabinetry, and a handmade ceramic tile backsplash that lends the apartment a homey country feel. It opens into a spacious dining and living room that flows perfectly into the oversized private backyard, where all of your gardening and outdoor entertaining dreams will come true. The renovated bath features a striking Blue Danby marble countertop, custom wood vanity and handmade decorative tile throughout. The coop itself offers ample basement storage, washer/dryer, and more curb appeal than you can imagine. Located right down the hill from Prospect Park and the Greenmarket, between 7th and 8th avenues, the Park Slope coop, express and local subways, and more restaurants and amenities than you can imagine.

Features & Amenities

Interior Features

Common Area

Exterior Features

Garden

Building Information

Financial Details

Maintenance $950/mo
Sale Price $850,000

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

Similar Listings in Park Slope

View All

Location

Loading map...

889 Union Street #Garden, Park Slope, Kings County • Near 7th/8th

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

1889
Year Built
137 years old
3
Floors
2
Residential Units
R7B
Zoning District
Walk-Up Apartments Historic District: Park Slope Historic District

Tax & Assessment

Assessed Value: $900,900
Land Value: $22,950
Exemptions: $0

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

Lot Area: 1,688 SF
Building Area: 3,558 SF
Built FAR: 2.11
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 $950 per month. Confirm the exact amount with the listing broker before making an offer.

This property has 2 bedrooms and 1 full bathroom.

The listed interior living area is 1,100 square feet. Verify dimensions independently during due diligence.

According to MLS records, the building was constructed in 1889, making it approximately 137 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.

At the current list price of $850,000 for 1,100 sq ft, the asking price per square foot is approximately $773. This figure is for reference only and may differ from appraised or assessed values.

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: RLS10070498
First Listed: 3/16/2015
Closed: 6/24/2015
Contract Date: 3/16/2015

Listing Courtesy of The Corcoran Group - Deborah L Rieders

Listing Contact: (917) 494-2503

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

Buying a Co-op? Start Here

Co-op vs. Condo: Which Is Right for You?

Ownership structure, board approval, financing: the full comparison.

Read article

How to Ace Your Co-op Board Interview

What boards look for, common questions, and how to prepare.

Read article

NYC Flip Tax Guide for Sellers

What co-op flip taxes are, how they're calculated, and who pays.

Read article

HDFC Co-ops: Complete Guide

Income limits, resale caps, and how to qualify for affordable co-ops.

Read article

Interested in this property?

Your info is secure and never shared.

View Active Listings Call Milton