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Detached Two-Family Duplex

69 Martense Street, Brooklyn, NY 11226

For Sale
$1,888,888
Pending

Residential Income, Brooklyn, NY

Property Size2,660 SF
Lot Size0.10 Acres
Days on Market289

Property Features for 69 Martense Street

General Information

Property type Residential Multi Family
Property subtype Duplex
Bedrooms 6
Bathrooms 2
Full bathrooms 2
Rooms Bathroom 2, Bedroom 6, Dining Room, Bedroom 3, Basement, Bedroom 1, Bedroom 5, Bathroom 1, Bedroom 2, Bedroom 4
Parking 6
Parking features Driveway, Garage, Parking Lot
Interior features First Floor Bedroom, First Floor Full Bath, Eat-in Kitchen, Formal Dining, High Ceilings, Master Downstairs
Basement Full, Walk-Out Access, Partially Finished
Special listing conditions Probate Listing, Third Party Approval
Standard status Pending
APN 05086-0058
Lot size 0.10 Acres

Taxes and HOA fees

Tax Year 2024
Tax Annual Amount 8494

Utilities

Utilities Water Available
Sewer type Public Sewer
Heating system Natural Gas
Water source Public

Amenities

laundry room
recreation space

Building Details

Year built 1930
Number of units 2
Building materials Frame
Architectural style Colonial
Buildings 1
Listing Agency: Mitra Hakimi Realty Group LLC
Listed By: Etan Hakimi · License NY #1014541
Added: Jan 25 Changed: Nov 6 Last Checked: Nov 9 at 1:06PM
MLS# 955280

Copyright © 2026 OneKey MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

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Investment Insights

Based on property information with market context.

This detached Colonial-style duplex, built in 1930, contains 2,660 square feet of living space on a 4,176-square-foot lot measuring 29.92 feet by 139.58 feet. Each apartment includes three bedrooms, a living room, dining room, full bathroom, and windowed eat-in kitchen. The semi-finished basement has its own entrance, laundry room, and recreation area. A 22-by-55-foot building footprint, frame construction, natural-gas heat, driveway, garage, and parking lot are also included.

The property is located at 69 Martense Street in Brooklyn’s Flatbush section, near Prospect Park, Brooklyn Botanic Garden, and Kings Theatre. Transit options cited for the property include the 2 and 5 trains at Church Avenue, the B and Q lines, and the B35, B41, and B44 bus routes.

R7A zoning and a 4.0 FAR are identified, with 16,704 buildable square feet cited for potential residential development subject to independent verification. The property is an estate sale, and closing is subject to issuance of Letters from the Surrogate’s Court.

Key Highlights

  • Two‑family detached residence with two three‑bedroom apartments
  • 4,176‑square‑foot lot measuring 29.92 ft x 139.58 ft
  • 2,660 square feet of living space with a 22x55 building footprint

Financial Insights

Estimated NOI and Cap Rate

NOI / Yr
$67,427
Cap Rate
3.57%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,348,540 $1.3M
Cap Rate 7%
$963,243 $963.2K
Cap Rate 9%
$749,189 $749.2K
Market Conditions
NOI Build-Up for 2,660 SF
Gross rent
$100.5K $37.80/SF
− Vacancy
−$4.2K −$1.59/SF
EGI
$96.3K $36.21/SF
− OpEx
−$28.9K −$10.86/SF
NOI
$67.4K $25.35/SF
Area
ZIP 11226
Vacancy
4.20%
Lease Rate
$37.80 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,348,540
Cap Rate 7%
$963,243
Cap Rate 9%
$749,189

Alternative Uses

Best Use
Multifamily LT 5
$963.2K
$842.8K – $1.12M (±1% cap)
NOI $67,427 @ 7.0% cap · market cap 3.57%
Second Best
Apartment 5plus
$890.8K
$779.5K – $1.04M (±1% cap)
NOI $62,359 @ 7.0% cap · market cap 3.30%
Theoretical Best
Office A
$1.31M
$1.15M – $1.53M (±1% cap)
NOI $92,032 @ 7.0% cap · market cap 4.87%
Zoning and permitted uses should be independently verified with authorities. How Realmo checks its estimates

Property Analytics

Who owns this building? See the owner, sales and loan history
Open Analytics

Lease Details

2
Residential units

Location Intelligence

Trade Area within ½ mile

5,488
Businesses Nearby

Demographics for 11226, NY

101,727
Population
42,618
Households
2.4
Avg Household Size
37
Median Age
36%
College-Educated
86%
High-School Grad
1.3 sq mi
ZIP Area
78,252
Density / Sq Mi
$81,084
Median Household Income
$49,892
Median Earnings
$1,751
Median Rent
$866,300
Median Home Value
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

Market

Average Price Trend$/SF for Duplexes in Brooklyn, NY

$784 Jul
$771 Aug
$781 Sep
$752 Oct

Properties on Market for Duplexes in Brooklyn

Jul
Aug
Sep
Oct

Vacancy Rate% for Multifamily in Northeast region

4% 2022
4.6% 2023
5.3% 2024
5.6% 2025

Frequently Asked Questions

What type of property is this?
Duplex - Detached two-family residence with two three-bedroom apartments, a separate-entry basement, and public water and sewer service.
Where is this duplex located?
The property is located at 69 Martense Street Brooklyn, NY.
What is the asking price?
The asking price for this property is $1,888,888.
What are key features of this property?
This property features: Two‑family detached residence with two three‑bedroom apartments; 4,176‑square‑foot lot measuring 29.92 ft x 139.58 ft; 2,660 square feet of living space with a 22x55 building footprint
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