Brick Duplex with
New
For Sale
$899,000
3401 Avenue U, Brooklyn, NY 11234
Residential, Duplex, Brooklyn, NY
Property Size1,771 SF
Lot Size0.05 Acres
Price / SF$507.62
Days on Market7
Property Features for 3401 Avenue U
General Information
Property type
Residential
Property subtype
Duplex
Zoning
R4
Bedrooms
6
Bathrooms
2
Full bathrooms
2
Rooms
Bathroom 2, Bedroom 2, Bedroom 5, Bedroom 1, Bedroom 4, Bathroom 1, Bedroom 6, Bedroom 3
Parking features
Garage - Attached
Interior features
A/C Unit, Refrigerator, Stove
Basement
Finished, Full
Subdivision
Marine Park
Standard status
Active
Size
1,771 SF
Lot size
0.05 Acres
Taxes and HOA fees
Tax Annual Amount
6859
Building Details
Year built
1940
Floors in Building
1
Flooring type
Tile, Hardwood
Building materials
Brick
Roof type
Flat
Architectural style
Other
Listing Agency:
RE/MAX Edge · RE/MAX International
(718) 612-3088
Listed By:
Kelly Wu
(718) 612-3088
Added: Aug 18
Changed: Aug 22
Last Checked: Aug 24 at 11:06AM
MLS# 503840
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 1,771-square-foot semi-detached duplex at 3401 Avenue U is constructed of brick and dates to 1940. The primary level includes living, dining, kitchen, bedroom, and bathroom areas, while the lower floor has its own entrance and additional rooms. An attic room adds flexible interior space for office or storage use. Interior features include an A/C unit, refrigerator, stove, hardwood flooring, and tile. The property also includes an attached garage, private driveway, and front, side, and back yards. The roof is flat.
The 0.0528-acre property is in Brooklyn, NY 11234, near Kings Plaza Shopping Center, schools, parks, restaurants, and public transportation. Bus service includes the B2, B3, and B100 routes, with connections to the B41, B46, B47, and Q35 buses and the Q and B trains. Zoning is R4.
The 0.0528-acre property is in Brooklyn, NY 11234, near Kings Plaza Shopping Center, schools, parks, restaurants, and public transportation. Bus service includes the B2, B3, and B100 routes, with connections to the B41, B46, B47, and Q35 buses and the Q and B trains. Zoning is R4.
Key Highlights
- 1,771‑square‑foot duplex on a 0.0528‑acre lot
- Brick construction with a 1940 year built
- Separate entrance serving the lower level
Financial Insights
Estimated NOI and Cap Rate
NOI = area × lease_rate × (100 − vacancy) / 100 × (1 − expense_ratio). Net Operating Income — what the owner takes home each year before mortgage payments and income tax. Effective rent (asking rent minus vacancy losses) minus operating costs (taxes, insurance, maintenance, management).
NOI / Yr
$62,023
Cap rate = NOI / list price × 100. Capitalization rate — annual return on a fully cash purchase, before financing. NOI divided by price. Higher means more income per dollar invested, but usually also more risk or older condition. 5–8% is typical for stabilized commercial property; double digits often signal distressed deals.
Cap Rate
6.90%
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$1,240,460
$1.2M
Cap Rate 7%
$886,043
$886.0K
Cap Rate 9%
$689,144
$689.1K
Market Conditions
NOI Build-Up for 1,771 SF
Vacancy — income lost from leasable area expected to sit empty during the year, subtracted from gross rent.
EGI (Effective Gross Income) — gross rent minus vacancy losses, the realistic income before paying operating costs.
OpEx (Operating Expenses) — recurring costs to operate the property (property tax, insurance, utilities, maintenance, management); excludes financing and capital improvements.
NOI (Net Operating Income) — income a property generates after operating costs but before financing and taxes.
Gross rent
$90.3K $51.00/SF
− Vacancy
−$1.7K −$0.97/SF
EGI
$88.6K $50.03/SF
− OpEx
−$26.6K −$15.01/SF
NOI
$62.0K $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 rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$1,240,460
Cap Rate 7%
$886,043
Cap Rate 9%
$689,144
Alternative Uses
Best Use
Multifamily LT 5
$886.0K
$775.3K – $1.03M
NOI $62,023 @ 7.0% cap · market cap 6.90%
Second Best
Apartment 5plus
$772.4K
$675.8K – $901.1K
NOI $54,067 @ 7.0% cap · market cap 6.01%
Theoretical Best
Specialty Retail
$1.47M
$1.28M – $1.71M
NOI $102,647 @ 7.0% cap · market cap 11.42%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Lease Details
2
Residential units
Location Intelligence
Trade Area within ½ mile
1,537
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
Market
Vacancy Rate% for Multifamily in Northeast region
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Duplex - Semi-detached brick duplex with separate lower-level access, private driveway, attached garage, and front, side, and rear yards.
Where is this duplex located?
The property is located at 3401 Avenue U Brooklyn, NY.
What is the asking price?
The asking price for this property is $899,000.
What are key features of this property?
This property features: 1,771‑square‑foot duplex on a 0.0528‑acre lot; Brick construction with a 1940 year built; Separate entrance serving the lower level
