Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $1,137,500

Listed at $1,150,000 · Sold 1.1% below asking · Closed February 22, 2021

343 15th Street #4B
Closed For Sale Co-op

$1,150,000

343 15th Street #4B

Park Slope, Brooklyn

MLS® #RLS10666028

RLS at REBNY

Listing by The Corcoran Group

2

Bedrooms

1.5

Baths

N/A

Sq. Ft.

1989

Year Built

Quick Summary

Bedrooms 2
Bathrooms 2 full, 1 half
Year Built 1989
Ownership Co-op
Maintenance $1,383/mo
Neighborhood Park Slope
Floor 4 of 4

Property Highlights

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

Property Details

Type Co-op
Ownership Stock Cooperative
Total Rooms 4
Baths 1 Full, 1 Half
Floor 4 of 4
View City
Exposure South
Pets Yes
Cross Street 7th Avenue & 8th Avenue
Year Built 1989

Listing History

Event Date Price Change
Listed Sep 8, 2020 $1,250,000 -
Currently Apr 26, 2026 $1,150,000 -8.0%

Description

343 15th St, 4B Bright and airy two bedroom, 1.5 bath with wood burning fireplace and large private roof deck. Sunshine streams into the expansive (27+ ft wide) open-plan living area from 4 large south-facing windows and an overhead skylight. The practically designed kitchen opens to the dining area and overlooks the wood burning fireplace. The spacious main bedroom has great closet space and a balcony with a french door for your morning coffee. The stylishly renovated full bath has two entrances for en-suite access and a window for natural light. The second bedroom is also generously-proportioned, with custom bookshelves and a large closet. With a windowed half bath off the living space, a designated washer and vented dryer closet, a giant coat closet and pantry, exceptionally high ceilings and beautifully maintained hardwood floors throughout, this apartment has great flow and calls for entertaining. The magical private roof deck is one floor up, with views from the NYC Harbor to the Manhattan skyline, a composting bin, planters, and a storage shed.Private basement storage and a virtual doorman completes the package in this 8 unit, well-maintained pet friendly building. In an ideal location between 7th and 8th Avenues, near the F/G/R trains, Prospect Park, the Armory YMCA, the local farmers market at Pritchard Square and all the amenities of both 7th Ave and Prospect Park West. 2 beds, 1.5 baths Private roof deck, plus balcony off main bedroom Washer and vented dryer Pet friendly Individual basement storage Virtual Doorman Great closet space throughout

Features & Amenities

Interior Features

Building Washer Dryer Install Allowed

Exterior Features

Balcony Balcony Rooftop

Appliances

Dryer Washer

Building Information

Financial Details

Maintenance $1,383/mo
Original Price $1,250,000
Sale Price $1,137,500

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)

23

Median Sale Price

$1.66M

Live data from RLS at REBNY • Updated 4/25/26, 8:00 PM EST

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Location

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343 15th Street #4B, Park Slope, Kings County • Near 7th Avenue & 8th Avenue

Floor Plans

Floor Plan

Building Information

Official NYC property records for this building

1894
Year Built
132 years old
4
Floors
8
Residential Units
R6A
Zoning District
Condominiums Historic District: Park Slope Historic District Extension

Tax & Assessment

Assessed Value: $1,742,850
Land Value: $63,900
Exemptions: $6,560

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

Lot Area: 2,445 SF
Building Area: 9,070 SF
Built FAR: 3.71
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 $1,383 per month. Confirm the exact amount with the listing broker before making an offer.

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

According to MLS records, the building was constructed in 1989, making it approximately 37 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: RLS10666028
First Listed: 9/8/2020
Price Changed: 2/5/2021
Closed: 2/22/2021
Contract Date: 9/10/2020

Listing Courtesy of The Corcoran Group - Nathalie Roy

Listing Contact: (718) 501-8763

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 12:00 AM UTC

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