Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $2,900,000

Listed at $2,995,000 · Sold 3.2% below asking · Closed July 29, 2025

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Closed For Sale Duplex

$2,995,000

$1,121 per sq ft

428 9th Street

Park Slope, Brooklyn

MLS® #RLS11032345

RLS at REBNY

Listing by Hauseit LLC

4

Bedrooms

3

Baths

2,672

Sq. Ft.

1900

Year Built

Quick Summary

Bedrooms 4
Bathrooms 3
Living Area 2,672 sq ft
Lot Size 1,305 sq ft
Year Built 1900
Ownership None
Property Taxes $7,680/yr
Neighborhood Park Slope

Property Highlights

  • Views: City
  • Exposure: North,South facing
  • Outdoor Space: Patio, Terrace

Property Details

Type Duplex
Ownership None
Total Rooms 11
Baths 3 Full
View City
Exposure North,South
Heating Radiant
Pets Yes
Year Built 1900
Living Area 2,672 sq ft
Structure Type Duplex,Townhouse
Flooring Hardwood
Furnished Unfurnished
Lot Size 1,305 sq ft
Parcel # 01012-0032
Block/Lot 00436/0000

Description

A rare find in the heart of Park Slope and just steps from the subway, this elegant townhouse perfectly combines historic charm with modern possibilities.

Distinguished by its classic light-toned facade, this stately home stands out in a row of rich brownstone neighbors. The entryway features an arched door with period moldings and beveled glass, embodying the timeless elegance of brownstone design. The beautifully preserved iron railings and stoop enhance the historic charm, making this home a standout on a picturesque block.

Inside, the owners duplex showcases stunning original details, including wood trim, original wooden baseboards, crown moldings, wainscoting, intricate parquet flooring, and tin ceilings in the upstairs bedrooms and hallway bathroom. The entryway is graced with original marble flooring and leads to the main staircase, complete with a beautifully preserved newel post and wooden railings. To the right, through French doors, lies the grand living space with an original marble fireplace, offering both elegance and warmth.

The kitchen is a bright and inviting space with an island and an open eat-in layout where afternoon sunlight streams in, creating a welcoming atmosphere for everyday living or entertaining. From the kitchen, step out onto the spacious deckan ideal spot for al fresco diningand take the stairs down to your wonderful garden, a serene retreat framed by lush greenery.

The upstairs of the owners duplex features a spacious primary bedroom with an en-suite bathroom, thoughtfully updated with modern amenities and a convenient washer and dryer for added comfort. The hallway full bathroom is a beautifully preserved space featuring original subway tiles, a classic cast iron tub, and tin ceilings, all illuminated by a skylight that enhances its timeless charm. An additional skylight above the stairs brightens the home, while tin ceilings in the upstairs bedrooms enhance the character of the space.

The garden-level unit can be rented out easily, providing additional income to help offset your mortgage while allowing you to enjoy the upper duplex. This flexible layout is perfect for both homeowners and investors.

Mechanically sound and well-maintained, this brownstone also features double-pane thermal windows throughout, including on the garden floor, enhancing energy efficiency and comfort. Offering endless possibilities to make it your own, it sits just moments from the vibrant shopping and dining corridor of 7th Avenue a rare opportunity to own a timeless piece of Brooklyn with exceptional potential.





Features & Amenities

Interior Features

Eat In Kitchen High Ceilings Building Inside Common Area In Unit Flooring: Hardwood Fireplace (1)

Exterior Features

Building Courtyard Building Garden Courtyard Garden Private Outdoor Space Under60 Sqft Patio Terrace

Appliances

Dryer Dishwasher Washer

Financial Details

RE Taxes $7,680/yr ($640/mo)
Original Price $3,150,000
Sale Price $2,900,000
Previous Price $3,150,000

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

89

Median Asking Price

$1.75M

Median $/Sqft

$1,437

Avg Days on Market

N/A

New This Week

13

Price Reduced

11%

Sold (30 Days)

23

Median Sale Price

$1.67M

Live data from RLS at REBNY • Updated 3/25/26, 6:09 AM EST

Similar Listings in Park Slope

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Location

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428 9th Street, Park Slope, Kings County

Virtual Tour

MLS® ID: RLS11032345
First Listed: 2/4/2025
On Market: 2/4/2025
Price Changed: 2/25/2025
Closed: 7/29/2025
Contract Date: 2/4/2025

Listing Courtesy of Hauseit LLC - Nicholas Oliver

Listing Contact: (888) 494-8258

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 3/25/2026 at 10:09 AM UTC

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