91 E 31ST Street
MLS® #RLS20080482
Listing by Corcoran Group
5
Bedrooms
3
Baths
2,160
Sq. Ft.
1910
Year Built
Quick Summary
Property Highlights
- Views: Other
- Outdoor Space: Patio
- Character: Pre-war building (1910)
Property Details
Listing History
| Event | Date | Price | Change |
|---|---|---|---|
| Listed | Mar 31, 2026 | $800,000 | - |
| Currently | May 7, 2026 | $800,000 | - |
Description
91 East 31st Street Flatbush, Brooklyn Development opportunity with clear upside in a transit-driven Flatbush location. CASH OFFERS ONLY -Situated on an 18' x 100' lot within an R6 zoning district, this two-family property offers a straightforward path to expansion or full repositioning.The existing structure spans approximately 2,160 square feet and is configured as a two-family with an English basement, allowing for flexible layouts and multiple end-use scenarios. Whether delivered as a renovated multi-unit, owner-user with income, or expanded asset, the current configuration provides a usable base while plans are developed.The key value lies in the additional buildable square footage. With a maximum allowable build of approximately 3,960 square feet, there is roughly 1,800 square feet of unused FAR-creating a clear opportunity for vertical expansion or reconfiguration to maximize returns.Located in an Opportunity Zone and within close proximity to the 2/5 subway lines, the property benefits from strong rental fundamentals and long-term appreciation drivers.This is a clean, scalable project for developers seeking a manageable footprint with meaningful upside in a steadily growing Brooklyn submarket.
Key Development Facts:Lot: 18 ft x 100 ft (1,800 SF)
Building: 18 ft x 40 ftExisting: 2,160 SF
Configuration: Two-family + English basement
Zoning: R6
Max Buildable: 3,960 SF
Additional FAR: 1,800 SF
Stories: 2
Year Built: 1910T
Taxes: $6,500 - Please independently verify
Opportunity Zone: Yes
Transit: 0.16 miles to 2/5
Features & Amenities
Interior Features
Exterior Features
Building Amenities
Appliances
Building Information
Financial Details
About Flatbush
View All Flatbush ListingsFlatbush 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 NeighborhoodActive Listings
51
Median Asking Price
$535K
Median $/Sqft
$705
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, 4:48 AM EST
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Location
91 E 31ST Street, Flatbush, Kings County
Floor Plans
Building Information
Official NYC property records for this building
Tax & Assessment
Note: Individual unit taxes may differ. Verify current tax bills with NYC DOF.
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
Listing Data
RLS® at REBNY (Real Estate Board of New York) via Trestle API. Updated in real-time.
Building Data
NYC PLUTO (Primary Land Use Tax Lot Output), NYC Department of City Planning. Updated quarterly.
Market Data
RLS® at REBNY (Real Estate Board of New York). Live data updated in real-time.
Map & Location
OpenStreetMap contributors via Leaflet. Geocoding via Nominatim.
All data is provided for informational purposes only and should be independently verified. See our Data Sources Policy for more information.
Frequently Asked Questions
Common questions about this property
The current listed annual property tax is $6,492, or roughly $541 per month. Verify the current assessment with your attorney before closing.
This property has 5 bedrooms and 3 full bathrooms.
The listed interior living area is 2,160 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
Pets are permitted at this property. Contact the listing broker for weight limits or breed restrictions.
At the current list price of $800,000 for 2,160 sq ft, the asking price per square foot is approximately $370. 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) 416-7433Listing Courtesy of Corcoran Group - Mary Smith
Listing Contact: (347) 233-4676
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 Data display by Keller Williams NYC. Data last updated on 5/7/2026 at 8:48 AM UTC