Closed For Sale • Condo

$899,000

$782 per sq ft

658 UNION Street #APT1

Park Slope, Brooklyn

null

MLS® #RLS10427007

Listing by Halstead dba Brown Harris Stevens Residential Sales LLC

1

Bedroom

2.5

Baths

1,149

Sq. Ft.

N/A

Year Built

Quick Summary

Bedrooms 1

Bathrooms 2 full, 1 half

Living Area 1,149 sq ft

Year Built N/A

Ownership Condo

HOA/Common Charges $293/mo

Property Taxes $312/yr

Neighborhood Park Slope

Property Highlights

• Location: Park Slope, Brooklyn
• Property Type: Condo

Property Details

Type Condo

Ownership Condominium

Total Rooms 3

Baths 1 Full, 1 Half

Pets Yes

Living Area 1,149 sq ft

Description

Charming garden duplex in prime Park Slope! This floor-through residence is less like a condo and more like a house. Pass through a private keypad entry and into an open kitchen-dining area with plenty of space for cooking and entertaining. The upper level of this unique apartment includes a full bathroom and a sunny, South facing living room that exits onto to beautiful garden with a working hot tub. The lower level functions as a bedroom suite with two generous closets, half-bath, private (in-unit) laundry room, and additional access to the garden. Low common charges of $293, a tax abatement (until 2024), and basement storage make this unique property ideal for investors and end-users alike.

658 Union Street is convenient to the R,D,N,Q,B,2,3,4,5 trains and LIRR, Prospect Park, Barclays Center, BAM, and is surrounded by the beautiful brownstone blocks, restaurants, shopping and amenities that make Park Slope one of Brooklyn's most sought-after locations.

Features & Amenities

Appliances

Dryer Washer

Building Information

Building null

Total Units 3

Stories 3

Financial Details

Common Charges $293/mo

RE Taxes $312/yr ($26/mo)

Original Price $998,000

Sale Price $899,000

Previous Price $985,000

About Park Slope

View All Park Slope Listings

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

86

Median Asking Price

$1.72M

Median $/Sqft

$1,435

Avg Days on Market

N/A

New This Week

4

Price Reduced

14%

Sold (30 Days)

20

Median Sale Price

$1.68M

Live data from RLS at REBNY • Updated 4/5/26, 8:25 PM EST

Similar Listings in Park Slope

View All

Active

$1,249,500

12

444-446 17th Street #3C

2 bed 1 bath 900 sqft

Condo • RLS #RLS20076180

Active

$1,040,000

17

445 5th Avenue #3-A

1 bed 1 bath 637 sqft

Condo • RLS #RLS20008934

Active

$1,770,000

15

445 5th Avenue #PH-E

2 bed 2 bath 1,025 sqft

Condo • RLS #RLS20042284

Active

$1,017,500

11

445 5th Avenue #4-B

1 bed 1 bath 641 sqft

Condo • RLS #RLS20069216

Active

$1,200,000

21

454 15TH Street #3R

2 bed 1 bath

Co-op • RLS #RLS20079230

Active

$1,705,000

15

445 5th Avenue #3-F

2 bed 2 bath 997 sqft

Condo • RLS #RLS20055937

Location

Loading map...

658 UNION Street #APT1, Park Slope, Kings County

NYC Zoning • Google Maps • Street View

Floor Plans

Data Sources & Methodology

Listing Data

RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.

Market Data

RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.

Map & Location

OpenStreetMap contributors via Leaflet. Geocoding via Nominatim.

All data is provided for informational purposes only and should be independently verified. See our Data Sources Policy for more information.

MLS® ID: RLS10427007

First Listed: 9/11/2018

Price Changed: 10/28/2018

Closed: 1/31/2019

Contract Date: 9/11/2018

Listing Courtesy of Halstead dba Brown Harris Stevens Residential Sales LLC - Helen Alexandra Como Saghir

Listing Contact: (917) 721-2945

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 Data display by Keller Williams NYC. Data last updated on 4/6/2026 at 12:25 AM UTC