Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $549,000

· Closed January 21, 2021

423 15TH Street #2B
Closed For Sale Co-op

$549,000

423 15TH Street #2B

Park Slope, Brooklyn

null

MLS® #RLS10656123

RLS at REBNY

Listing by Brown Harris Stevens Residential Sales LLC

1

Bedroom

1

Bath

N/A

Sq. Ft.

1920

Year Built

Quick Summary

Bedrooms 1
Bathrooms 1
Year Built 1920
Ownership Co-op
Maintenance $743/mo
Neighborhood Park Slope
Floor 2 of 4

Property Highlights

  • Exposure: East,North,West facing
  • Character: Pre-war building (1920)
  • New Construction: Brand new building

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 3
Baths 1 Full
Floor 2 of 4
Exposure East,North,West
Pets Yes
Cross Street 8 AVENUE and PROSPECT PARK WEST
Year Built 1920 (New)
Parcel # 01103-0069-00423-000-000002B

Listing History

Event Date Price Change
Listed Aug 6, 2020 $575,000 -
Currently Apr 26, 2026 $549,000 -4.5%

Description

This charming 1 bedroom nestled on a leafy park block has high ceilings, exposed brick walls and hardwood floors. There is an open kitchen floor plan for entertaining complete with a crisp subway tiled backsplash and stainless appliances. Relax in the extra large bedroom with plenty of light and closet space. The bedroom faces the back of the building and is very quiet. There is a washer/dryer in the unit and storage/bike storage in the basement.

423 15th Street is less than a block from the famed 500+ acre Prospect Park and nearby to the F/G trains. The building is pet friendly and has a shared garden in the back. There are many wonderful local shops, restaurants and conveniences at your doorstep. Enjoy fresh produce at Bartel-Pritchard Greenmarket a block away. Come see what Brooklyn has to offer!

Features & Amenities

Interior Features

Building Washer Dryer Install Allowed

Appliances

Dryer Washer Dryer Allowed Washer

Building Information

Financial Details

Maintenance $743/mo
Original Price $575,000
Sale Price $549,000

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

110

Median Asking Price

$1.70M

Median $/Sqft

$1,376

Avg Days on Market

N/A

New This Week

15

Price Reduced

16%

Sold (30 Days)

20

Median Sale Price

$1.66M

Live data from RLS at REBNY • Updated 4/26/26, 12:49 AM EST

Similar Listings in Park Slope

View All

Location

Loading map...

423 15TH Street #2B, Park Slope, Kings County • Near 8 AVENUE and PROSPECT PARK WEST

Floor Plans

Floor Plan

Building Information

Official NYC property records for this building

1909
Year Built
117 years old
4
Floors
16
Residential Units
R6B
Zoning District
Walk-Up Apartments Historic District: Park Slope Historic District Extension

Tax & Assessment

Assessed Value: $990,000
Land Value: $62,550
Exemptions: $34,411

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

Lot Area: 4,458 SF
Building Area: 12,536 SF
Built FAR: 2.81
Allowed FAR: 2

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 $743 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: RLS10656123
First Listed: 8/6/2020
Price Changed: 2/5/2021
Closed: 1/21/2021
Contract Date: 8/7/2020

Listing Courtesy of Brown Harris Stevens Residential Sales LLC - Natalie Rabaa

Listing Contact: (718) 613-2782

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 4/26/2026 at 4:49 AM 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?

Get a response within 2 hours

Your info is secure and never shared.

View Active Listings Call Milton