Duplex with Detached
New
For Sale
$949,000
4102 Avenue S, Brooklyn, NY 11234
Residential, Duplex, Brooklyn, NY
Property Size966 SF
Lot Size0.04 Acres
Price / SF$982.40
Days on Market2
Property Features for 4102 Avenue S
General Information
Property type
Residential
Property subtype
Duplex
Zoning
R4
Bedrooms
3
Bathrooms
2
Full bathrooms
1
Rooms
Bathroom 2, Bathroom 1, Bedroom 3, Bedroom 1, Bedroom 2
Parking features
Garage - Detached
Interior features
Refrigerator, Stove
Basement
Full, Finished
Subdivision
Marine Park
Standard status
Active
Size
966 SF
Lot size
0.04 Acres
Taxes and HOA fees
Tax Annual Amount
6648
Amenities
separate side entrance
private backyard
detached garage
Building Details
Year built
1930
Floors in Building
2
Flooring type
Hardwood, Tile
Roof type
Flat, Shingle
Architectural style
Other
Listing Agency:
ProBase Real Estate
Listed By:
JiaJie (Kai) Zheng · License #10401377313
(718) 210-2727
Added: Nov 2
Last Checked: Nov 3 at 9:06PM
MLS# 505769
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.
Ask AI about this property
Review the available facts, identify missing information and prepare questions for the agent.
Investment Insights
Based on property information with market context.
This Brooklyn duplex contains 966 square feet, with three bedrooms and two bathrooms. Interior finishes include hardwood and tile flooring, and the kitchen is equipped with a refrigerator and stove. A separate side entrance provides an additional point of access, while the private backyard and detached garage add outdoor and vehicle-storage features. The property occupies a 0.0425-acre corner lot and was built in 1930.
Located at 4102 Avenue S in Brooklyn, the property is near schools, shopping, parks, and transportation. Its zoning designation is R4.
Located at 4102 Avenue S in Brooklyn, the property is near schools, shopping, parks, and transportation. Its zoning designation is R4.
Key Highlights
- 966‑square‑foot duplex on a 0.0425‑acre corner lot
- Three bedrooms and two bathrooms
- Detached garage and private backyard
Financial Insights
Estimated NOI and Cap Rate
NOI / Yr
$33,831
Cap Rate
3.56%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$676,620
$676.6K
Cap Rate 7%
$483,300
$483.3K
Cap Rate 9%
$375,900
$375.9K
Market Conditions
NOI Build-Up for 966 SF
Gross rent
$49.3K $51.00/SF
− Vacancy
−$936 −$0.97/SF
EGI
$48.3K $50.03/SF
− OpEx
−$14.5K −$15.01/SF
NOI
$33.8K $35.02/SF
Area
Brooklyn, NY
Vacancy
1.90%
Lease Rate
$51.00 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$676,620
Cap Rate 7%
$483,300
Cap Rate 9%
$375,900
Alternative Uses
Best Use
Multifamily LT 5
$483.3K
$422.9K – $563.9K
NOI $33,831 @ 7.0% cap · market cap 3.56%
Second Best
Apartment 5plus
$421.3K
$368.6K – $491.5K
NOI $29,491 @ 7.0% cap · market cap 3.11%
Theoretical Best
Specialty Retail
$799.8K
$699.9K – $933.2K
NOI $55,989 @ 7.0% cap · market cap 5.90%
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
2,111
Businesses Nearby
Explore this area
Business Placement
Demographics for 11234, NY
92,133
Population
35,167
Households
2.6
Avg Household Size
41
Median Age
39%
College-Educated
89%
High-School Grad
7.4 sq mi
ZIP Area
12,450
Density / Sq Mi
$94,434
Median Household Income
$55,206
Median Earnings
$1,771
Median Rent
$746,800
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
Frequently Asked Questions
What type of property is this?
Duplex - R4-zoned property offers three bedrooms, two bathrooms, and a private backyard.
Where is this duplex located?
The property is located at 4102 Avenue S Brooklyn, NY.
What is the asking price?
The asking price for this property is $949,000.
What are key features of this property?
This property features: 966‑square‑foot duplex on a 0.0425‑acre corner lot; Three bedrooms and two bathrooms; Detached garage and private backyard
