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Duplex with Finished Basement
New
For Sale
$1,125,000

646 E 103rd Street, Brooklyn, NY 11236

Residential, Brooklyn, NY

Property Size3,212 SF
Lot Size0.07 Acres
Price / SF$350.25
Days on Market1

Property Features for 646 E 103rd Street

General Information

Property type Residential Multi Family
Property subtype Other
Zoning R5
Bedrooms 6
Bathrooms 5
Full bathrooms 5
Rooms Bathroom 1, Bathroom 2, Bedroom 6, Bedroom 3, Bathroom 3, Bedroom 5, Bedroom 2, Bedroom 4, Bedroom 1, Bathroom 4, Bathroom 5
Interior features Stove
Basement Finished
Subdivision Canarsie
Standard status Active
Size 3,212 SF
Lot size 0.07 Acres

Taxes and HOA fees

Tax Annual Amount 8333

Amenities

backyard
solar panels

Building Details

Year built 1999
Floors in Building 2
Number of units 2
Flooring type Hardwood
Building materials Brick
Roof type Flat
Listing Agency: Greatest Real Estate Inc.
Listed By: Jerry Gilbert
Added: Oct 13 Last Checked: Oct 13 at 10:06PM
MLS# 505302

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 3,212-square-foot brick duplex, built in 1999, has two main-floor residences, each with three bedrooms and two full bathrooms. Both include a living room, formal dining room, eat-in kitchen, hardwood floors, and a primary bedroom with a private bath and walk-in closet. The finished accessory basement has a separate entrance, four additional rooms, and a full bathroom. Updates include solar panels, energy-efficient windows, a newer hot water tank, and refreshed brick pointing.

The 0.0656-acre property has a private driveway with space for up to five vehicles and a backyard. Nearby destinations include the L train at Rockaway Parkway, Avenue L retail and dining, the Belt Parkway, Gateway Mall, and Kings Plaza. The property is zoned R5.

Key Highlights

  • Two three‑bedroom, two‑bathroom residences
  • 3,212 square feet of building area on a 0.0656‑acre lot
  • Finished accessory basement with separate entrance, four rooms, and a full bathroom

Financial Insights

Estimated NOI and Cap Rate

NOI / Yr
$98,059
Cap Rate
8.72%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,961,180 $2.0M
Cap Rate 7%
$1,400,843 $1.4M
Cap Rate 9%
$1,089,544 $1.1M
Market Conditions
NOI Build-Up for 3,212 SF
Gross rent
$181.9K $56.64/SF
− Vacancy
−$3.6K −$1.13/SF
EGI
$178.3K $55.51/SF
− OpEx
−$80.2K −$24.98/SF
NOI
$98.1K $30.53/SF
Area
Brooklyn, NY
Vacancy
2.00%
Lease Rate
$56.64 /SF/Yr
Expense Ratio
45.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,961,180
Cap Rate 7%
$1,400,843
Cap Rate 9%
$1,089,544

Alternative Uses

Best Use
Multifamily LT 5
$1.61M
$1.41M – $1.87M (±1% cap)
NOI $112,490 @ 7.0% cap · market cap 10.00%
Second Best
Apartment 5plus
$1.40M
$1.23M – $1.63M (±1% cap)
NOI $98,059 @ 7.0% cap · market cap 8.72%
Theoretical Best
Specialty Retail
$2.66M
$2.33M – $3.10M (±1% cap)
NOI $186,168 @ 7.0% cap · market cap 16.55%
Zoning and permitted uses should be independently verified with authorities. How Realmo checks its estimates

Property Analytics

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Current Use

Duplexes

Suggested Use

Top Pick Law Firm Real Estate Agency Parking Lot & Garage Skin Care Clinic Spa & Massage Center Dental Office

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

2
Residential units
Yes
Highway access

Location Intelligence

Trade Area within ½ mile

1,924
Businesses Nearby

Demographics for 11236, NY

100,687
Population
37,002
Households
2.7
Avg Household Size
40
Median Age
28%
College-Educated
88%
High-School Grad
3.6 sq mi
ZIP Area
27,969
Density / Sq Mi
$82,813
Median Household Income
$50,244
Median Earnings
$1,637
Median Rent
$710,300
Median Home Value
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

Market

Vacancy Rate% for Multifamily in Northeast region

4% 2022
4.6% 2023
5.3% 2024
5.6% 2025
Rey
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Frequently Asked Questions

What type of property is this?
Duplex - Two residential units provide six bedrooms, five bathrooms, and separate living space across the upper floors and basement.
Where is this duplex located?
The property is located at 646 E 103rd Street Brooklyn, NY.
What is the asking price?
The asking price for this property is $1,125,000.
What are key features of this property?
This property features: Two three‑bedroom, two‑bathroom residences; 3,212 square feet of building area on a 0.0656‑acre lot; Finished accessory basement with separate entrance, four rooms, and a full bathroom
More about this property
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