Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433
531 1st Street
Interested in this property?
Active For Sale Duplex

$7,500,000

$1,609 per sq ft

531 1st Street

Park Slope, Brooklyn

MLS® #RLS20085519

RLS at REBNY

Listing by Compass

7

Bedrooms

4

Baths

4,660

Sq. Ft.

1901

Year Built

Quick Summary

Bedrooms 7
Bathrooms 4
Living Area 4,660 sq ft
Year Built 1901
Ownership None
Property Taxes $18,132/yr
Neighborhood Park Slope
Floor 1 of 4

Property Highlights

  • Outdoor Space: Terrace, Balcony
  • Character: Pre-war building (1901)

Property Details

Type Duplex
Ownership None
Total Rooms 13
Baths 4 Full
Floor 1 of 4
Pets Yes
Year Built 1901
Living Area 4,660 sq ft
Structure Type Duplex,Townhouse
Flooring Hardwood
Furnished Unfurnished
Parcel # 01075-0064
Block/Lot 01075/0064

Listing History

Event Date Price Change
Listed Apr 21, 2026 $7,500,000 -
Currently Apr 21, 2026 $7,500,000 -

Description

Perfectly positioned just moments from Prospect Park on one of Park Slope’s most coveted blocks, this distinguished circa 1915 limestone townhouse blends the elegance of British Regency architecture with elements of classic Federal design. Spanning 21 feet in width, the home makes an immediate impression with its stately façade, double-columned entry, low granite stoop, and original cast iron fencing, while inside, grand proportions, soaring ceilings, and beautifully preserved details create a timeless atmosphere. The main level features a gracious living room with a sweeping carved staircase, a formal dining room framed by pocket doors, and a spacious kitchen with direct access to a private garden. Upstairs, sunlit bedrooms showcase original features including stained glass, window seats, and decorative mantels, complemented by multiple baths, a gallery landing, and both front and rear staircases for added convenience. Located just off Prospect Park and one block from the best of 7th Avenue’s shops and dining, with easy access to transportation and top-rated schools, this is a rare opportunity to own a truly special Park Slope townhouse.

Features & Amenities

Interior Features

High Ceilings Pantry Soaking Tub Sauna See Remarks Flooring: Hardwood Skylights

Exterior Features

Building Garden Balcony Private Outdoor Space Over60 Sqft Terrace Balcony

Appliances

Wine Cooler

Building Information

Total Units 2
Stories 4
Structure Duplex,Townhouse

Financial Details

RE Taxes $18,132/yr ($1,511/mo)

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

107

Median Asking Price

$1.71M

Median $/Sqft

$1,384

Avg Days on Market

N/A

New This Week

14

Price Reduced

17%

Sold (30 Days)

23

Median Sale Price

$1.64M

Live data from RLS at REBNY • Updated 4/21/26, 2:01 PM EST

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Location

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531 1st Street, Park Slope, Kings County

Floor Plans

Floor Plan

Frequently Asked Questions

Common questions about this property

The current listed common charges are $0 per month. Confirm the exact amount with the listing broker before making an offer.

The current listed annual property tax is $18,132, or roughly $1,511 per month. Verify the current assessment with your attorney before closing.

This property has 7 bedrooms and 4 full bathrooms.

The listed interior living area is 4,660 square feet. Verify dimensions independently during due diligence.

According to MLS records, the building was constructed in 1901, making it approximately 125 years old.

This listing is None

Pet policy requires confirmation with the listing broker.

At the current list price of $7,500,000 for 4,660 sq ft, the asking price per square foot is approximately $1,609. 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 [email protected]. 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: RLS20085519
First Listed: 4/20/2026
On Market: 4/21/2026
Contract Date: 4/20/2026

Listing Courtesy of Compass - Timothy P Malone

Listing Contact: (631) 804-3816

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 4/21/2026 at 6:01 PM UTC

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