Duplex with Rooftop
371 84th Street, Brooklyn, NY 11209
For Sale
$3,390,000
Residential, Brooklyn, NY
Property Size3,360 SF
Lot Size0.06 Acres
Price / SF$1,008
Days on Market48
Property Features for 371 84th Street
General Information
Property type
Property subtype
Zoning
Bedrooms
Bathrooms
Full bathrooms
Half bathrooms
Rooms
Parking features
Interior features
Fireplace
Basement
Subdivision
Standard status
Size
Lot size
Taxes and HOA fees
Tax Annual Amount
Amenities
rooftop deck
hot tub
chef's kitchen
fireplace
private balcony
radiant-heated flooring
whole-house sound system
CCTV security
central vacuum system
central air conditioning
in-unit laundry
hardwood flooring
Building Details
Year built
Number of units
Flooring type
Building materials
Roof type
Buildings
Listing Agency:
Kirin Real Estate LLC
Listed By:
Allen Z. Luo · License NY #10491214007
(929) 460-0008
Added: Sep 29
Changed: Oct 29
Last Checked: Nov 15 at 3:06PM
MLS# 504933
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.
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Investment Insights
Based on property information with market context.
This four-story, two-family duplex at 371 84th Street in Brooklyn contains 3,360 square feet and sits on a 0.0574-acre lot. The upper residence spans three levels and includes a rooftop deck, a private balcony, a fireplace, and a dedicated laundry area. The garden residence has three bedrooms, 2.5 baths, a walk-in pantry, a kitchenette, and a lower level with radiant-heated flooring.
Brick construction dates to 1920, and the property is zoned R4-1. Both residences have in-unit laundry. Additional features include central air conditioning, hardwood flooring, CCTV security, a whole-house sound system, and a detached garage.
Brick construction dates to 1920, and the property is zoned R4-1. Both residences have in-unit laundry. Additional features include central air conditioning, hardwood flooring, CCTV security, a whole-house sound system, and a detached garage.
Key Highlights
- Two‑family, four‑story property with 3,360 square feet
- 0.0574‑acre lot zoned R4‑1
- Upper residence includes a rooftop deck and private balcony
Financial Insights
Estimated NOI and Cap Rate
NOI / Yr
$117,673
Cap Rate
3.47%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$2,353,460
$2.4M
Cap Rate 7%
$1,681,043
$1.7M
Cap Rate 9%
$1,307,478
$1.3M
Market Conditions
NOI Build-Up for 3,360 SF
Gross rent
$171.4K $51.00/SF
− Vacancy
−$3.3K −$0.97/SF
EGI
$168.1K $50.03/SF
− OpEx
−$50.4K −$15.01/SF
NOI
$117.7K $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%
$2,353,460
Cap Rate 7%
$1,681,043
Cap Rate 9%
$1,307,478
Alternative Uses
Best Use
Multifamily LT 5
$1.68M
$1.47M – $1.96M
NOI $117,673 @ 7.0% cap · market cap 3.47%
Second Best
Apartment 5plus
$1.47M
$1.28M – $1.71M
NOI $102,577 @ 7.0% cap · market cap 3.03%
Theoretical Best
Specialty Retail
$2.78M
$2.43M – $3.25M
NOI $194,746 @ 7.0% cap · market cap 5.74%
Zoning and permitted uses should be independently verified with authorities.
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Lease Details
2
Residential units
Location Intelligence
Trade Area within ½ mile
4,776
Businesses Nearby
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Business Placement
Demographics for 11209, NY
73,239
Population
33,286
Households
2.2
Avg Household Size
40
Median Age
53%
College-Educated
90%
High-School Grad
2.1 sq mi
ZIP Area
34,876
Density / Sq Mi
$92,656
Median Household Income
$62,455
Median Earnings
$1,857
Median Rent
$905,700
Median Home Value
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Market
Average Price Trend$/SF for Duplexes in Brooklyn, NY
Properties on Market for Duplexes in Brooklyn
Vacancy Rate% for Multifamily in Northeast region
Frequently Asked Questions
What type of property is this?
Duplex - Two residences combine multi-level living areas with private outdoor spaces and in-unit laundry.
Where is this duplex located?
The property is located at 371 84th Street Brooklyn, NY.
What is the asking price?
The asking price for this property is $3,390,000.
What are key features of this property?
This property features: Two‑family, four‑story property with 3,360 square feet; 0.0574‑acre lot zoned R4‑1; Upper residence includes a rooftop deck and private balcony
