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Flex Space with Basement
New
For Lease
$6,000/Mo

143 21 Street, Brooklyn, NY 11232

Commercial, Brooklyn, NY

Space SizeContact for details
Property Size3,500 SF
Lot Size0.06 Acres
Days on Market2

Property Features for 143 21 Street

General Information

Property type Commercial Sale
Property subtype Other
Zoning M1
Basement Unfinished
Subdivision Park Slope
Standard status Active
Size 3,500 SF
Lot size 0.06 Acres

Building Details

Number of units 1
Building materials Block
Roof type Asphalt
Listing Agency: 1st Premier Realty Network Inc
Listed By: Jad Farraj
Added: Oct 6 Last Checked: Oct 7 at 12:06AM
MLS# 505134

Copyright © 2026 Brooklyn New York Multiple Listing Service. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

Investment Insights

Based on property information with market context.

This flex property at 143 21 Street in Brooklyn includes 3,500 square feet with a basement. The space is identified for warehouse, office, and retail use. M1 zoning applies to the property.

Block construction and an asphalt roof are among the building’s documented features.

Key Highlights

  • 3,500 square feet, including the basement
  • M1 zoning
  • Block construction with an asphalt roof

Property Analytics

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Open Analytics

Current Use

Flex space

Suggested Use

Top Pick Law Firm Real Estate Agency Nursing Home Parking Lot & Garage Accounting Firm Catering Service

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

NNN (Triple Net)
Lease Type
$3.09 /SF/Yr
CAM

Location Intelligence

Trade Area within ½ mile

4,858
Businesses Nearby
Under-served
Demand for This Use

Demographics for 11232, NY

30,181
Population
10,004
Households
3
Avg Household Size
35
Median Age
36%
College-Educated
69%
High-School Grad
1.2 sq mi
ZIP Area
25,151
Density / Sq Mi
$87,517
Median Household Income
$45,983
Median Earnings
$1,972
Median Rent
$782,500
Median Home Value
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

Market

Lease Benchmarks for Brooklyn, NY

$29.57 /SF/Yr
Avg Asking Price
$17–$42 /SF/Yr
Price Range
7,192 SF
Avg Space Size

This space is priced 30% below the average of $29.57 /SF/Yr.

Vacancy Rate% for Industrial in Northeast region

5.4% 2019
4.6% 2020
3.2% 2021
3.3% 2022
5.3% 2023
6.6% 2024
7.6% 2025
Rey
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.

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Frequently Asked Questions

What type of property is this?
Flex space - M1 zoning accompanies space identified for warehouse, office, and retail use.
Where is this flex space located?
The property is located at 143 21 Street Brooklyn, NY.
What is the lease rate?
The lease rate is $6,000/Mo.
What are key features of this property?
This property features: 3,500 square feet, including the basement; M1 zoning; Block construction with an asphalt roof
More about this property
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