Milton Coste

Licensed Real Estate Associate Broker

(917) 416-7433

SOLD FOR $1,100,000

· Closed July 29, 2025

124 Martense Street
Closed For Sale Duplex

$1,100,000

$458 per sq ft

124 Martense Street

Flatbush, Brooklyn

MLS® #RLS20025368

RLS at REBNY

Listing by Compass

6

Bedrooms

3

Baths

2,400

Sq. Ft.

1910

Year Built

Quick Summary

Bedrooms 6
Bathrooms 3
Living Area 2,400 sq ft
Year Built 1910
Ownership None
Property Taxes $7,776/yr
Neighborhood Flatbush
Floor 1 of 2

Property Highlights

  • Fireplace: 1 fireplace
  • Character: Pre-war building (1910)

Property Details

Type Duplex
Ownership None
Total Rooms 9
Baths 3 Full
Floor 1 of 2
Pets Yes
Year Built 1910
Living Area 2,400 sq ft
Structure Type Duplex,Townhouse
Flooring Hardwood, Parquet
Furnished Unfurnished
Parcel # 05090-0021
Block/Lot 05090/21

Listing History

Event Date Price Change
Listed May 20, 2025 $1,085,000 -
Currently May 7, 2026 $1,100,000 +1.4%

Description

Finally, a Two Family with exceptional Upside in Prime PLG/Flatbush Border. Welcome to 124 Martense Street, a classic 20' x 55' two-family barrel front townhouse located at the crossroads of Flatbush and Prospect Lefferts Gardens. The two family, 20 ft x 55 ft home is rich in period details. Inside you'll find stunning inlaid hardwood floors, ornate Victorian mantels, a grand pier mirror, and intricate original woodwork,. All of these rare architectural touches speak to the home’s history. While the property requires TLC, these preserved elements offer an incredible starting point for restoration or conversion. Set on a 20.33 ft x 117.83 ft lot and zoned R7-1 with a residential FAR of 3.44, this property offers a tremendous development opportunity with 5,782 square feet of unused buildable, allowing for a maximum usable floor area of 8,118 square feet. Whether you're a developer seeking your next project or an end-user with vision, the potential here is undeniable. Each floor can be its own rentable unit or you can combine the first and second floors into a spacious grand one family home. Located on a charming, tree-lined block near the heart of PLG, you are close to Prospect Park and the B/Q trains. Lot Size: 2,360 SF (20.33' x 117.83') Zoning: R7-1 / Residential FAR 3.44 Max Buildable: 8,118 SF Unused Buildable: 5,782 SF End-users, investors, and developers—bring your architect and vision. This is a rare chance to transform a historic home with architectural pedigree or build new on a generously zoned lot in one of Brooklyn’s most dynamic neighborhoods. Cash offers preferred. Shown by appointment.

Features & Amenities

Interior Features

Built In Features Crown Molding High Ceilings In Unit See Remarks Flooring: Hardwood, Parquet Fireplace (1)

Exterior Features

Private Outdoor Space Over60 Sqft

Building Information

Building Data View Compliance & Permits
Total Units 2
Stories 2
Structure Duplex,Townhouse

Financial Details

RE Taxes $7,776/yr ($648/mo)
Original Price $1,085,000
Sale Price $1,100,000
Previous Price $1,085,000

Flatbush features one of Brooklyn's most varied housing stocks, including grand detached Victorians along Ocean Avenue, limestone and brownstone rowhouses, prewar apartment buildings, and brick townhomes within landmarked districts like Prospect Park South and Ditmas Park. The Q, 2, and 5 trains connect the neighborhood to Manhattan, while Prospect Park's 526 acres of green space border the northern edge. The restored Kings Theatre, a 1920s-era landmark performance venue, and Erasmus Hall High School, founded in 1786, are among the area's most notable architectural features.

Flatbush Live Market Data

View Neighborhood

Active Listings

50

Median Asking Price

$537K

Median $/Sqft

$741

Avg Days on Market

N/A

New This Week

0

Price Reduced

22%

Sold (30 Days)

3

Median Sale Price

$443K

Live data from RLS at REBNY • Updated 5/7/26, 2:56 PM EST

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Location

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124 Martense Street, Flatbush, Kings County

Floor Plans

Floor Plan 1

Building Information

Official NYC property records for this building

1910
Year Built
116 years old
2
Floors
2
Residential Units
R7-1
Zoning District
Two Family Dwellings

Tax & Assessment

Assessed Value: $63,000
Land Value: $21,600
Exemptions: $0

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

Lot Area: 2,360 SF
Building Area: 2,328 SF
Built FAR: 0.99
Allowed FAR: 3.44

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 $0 per month. Confirm the exact amount with the listing broker before making an offer.

The current listed annual property tax is $7,776, or roughly $648 per month. Verify the current assessment with your attorney before closing.

This property has 6 bedrooms and 3 full bathrooms.

The listed interior living area is 2,400 square feet. Verify dimensions independently during due diligence.

According to MLS records, the building was constructed in 1910, making it approximately 116 years old.

This listing is None

Pet policy requires confirmation with the listing broker.

At the current list price of $1,100,000 for 2,400 sq ft, the asking price per square foot is approximately $458. 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: RLS20025368
First Listed: 5/20/2025
On Market: 5/20/2025
Price Changed: 7/30/2025
Closed: 7/29/2025
Contract Date: 4/20/2025

Listing Courtesy of Compass - Delson Ronit Abraham

Listing Contact: (917) 572-2583

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 5/7/2026 at 6:56 PM UTC

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