Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $1,376,000

· Closed September 16, 2016

658 Union Street #C
Closed For Sale Condo

$1,376,000

$974 per sq ft

658 Union Street #C

Park Slope, Brooklyn

MLS® #RLS10070437

RLS at REBNY

Listing by The Corcoran Group

3

Bedrooms

2

Baths

1,413

Sq. Ft.

2006

Year Built

Quick Summary

Bedrooms 3
Bathrooms 2
Living Area 1,413 sq ft
Year Built 2006
Ownership Condo
HOA/Common Charges $305/mo
Property Taxes $372/yr
Neighborhood Park Slope
Floor 3

Property Highlights

  • Views: City
  • Exposure: North,South facing
  • Outdoor Space: Balcony, Rooftop

Property Details

Type Condo
Ownership Condominium
Total Rooms 5
Baths 2 Full
Floor 3
View City
Exposure North,South
Cooling Wall Units
Pets Yes
Cross Street 4th / 5th Avenues
Year Built 2006
Living Area 1,413 sq ft

Listing History

Event Date Price Change
Listed Jul 5, 2016 $1,295,000 -
Currently Apr 30, 2026 $1,376,000 +6.3%

Description

Truly a rare find. This beautiful 3 bed, 2.5 bath triplex condo in the heart of Park Slope boasts 3 balconies and a gorgeous private roof deck with stunning views of Manhattan. Fully renovated kitchen and master bath. Washer/dryers allowed, but the unit has its own washer and dryer in the basement, as well as storage. 658 Union is a self-managed boutique condo with low common charges and tax abatement in place until 2032. No board application required for purchasers.

Features & Amenities

Exterior Features

Balcony Balcony Rooftop

Building Information

Financial Details

Common Charges $305/mo
RE Taxes $372/yr ($31/mo)
Original Price $1,295,000
Sale Price $1,376,000
Previous Price $1,295,000

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

$1.75M

Median $/Sqft

$1,384

Avg Days on Market

N/A

New This Week

8

Price Reduced

17%

Sold (30 Days)

24

Median Sale Price

$1.64M

Live data from RLS at REBNY • Updated 4/30/26, 8:22 AM EST

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Location

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658 Union Street #C, Park Slope, Kings County • Near 4th / 5th Avenues

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

2006
Year Built
20 years old
3
Residential Units
R6A
Zoning District
Condominiums

Tax & Assessment

Assessed Value: $259,260
Land Value: $4,200
Exemptions: $254,249

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

Lot Area: 1,805 SF
Building Area: 3,713 SF
Built FAR: 2.06
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 common charges are $305 per month. Confirm the exact amount with the listing broker before making an offer.

The current listed annual property tax is $372, or roughly $31 per month. Verify the current assessment with your attorney before closing.

This property has 3 bedrooms and 2 full bathrooms.

The listed interior living area is 1,413 square feet. Verify dimensions independently during due diligence.

According to MLS records, the building was constructed in 2006, making it approximately 20 years old.

This listing is a condominium. Buyers receive a deed to their individual unit and own their space outright, subject to condo association rules.

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

At the current list price of $1,376,000 for 1,413 sq ft, the asking price per square foot is approximately $974. 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: RLS10070437
First Listed: 7/5/2016
Price Changed: 9/16/2016
Closed: 9/16/2016
Contract Date: 7/5/2016

Listing Courtesy of The Corcoran Group - Kelley Vick

Listing Contact: (212) 452-4362

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 4/30/2026 at 12:22 PM UTC

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