Brick Duplex With Private
New
For Sale
$799,000
1848 E 31st Street, Brooklyn, NY 11234
Residential, Duplex, Brooklyn, NY
Property Size1,836 SF
Lot Size0.04 Acres
Price / SF$435.19
Days on Market2
Property Features for 1848 E 31st Street
General Information
Property type
Residential
Property subtype
Duplex
Zoning
R4
Bedrooms
3
Bathrooms
2
Full bathrooms
2
Rooms
Bedroom 1, Bedroom 2, Bathroom 1, Bathroom 2, Bedroom 3
Interior features
Refrigerator, Stove
Basement
Finished, Full
Subdivision
Marine Park
Standard status
Active
Size
1,836 SF
Lot size
0.04 Acres
Taxes and HOA fees
Tax Annual Amount
7726
Amenities
private backyard
community driveway
finished basement
Building Details
Year built
1925
Flooring type
Hardwood
Roof type
Flat
Architectural style
Other
Listing Agency:
Revived Residential
(929) 379-3750
Listed By:
Louis Belisario
(347) 702-3316
Added: Sep 8
Last Checked: Sep 9 at 8:06PM
MLS# 504337
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 attached brick duplex offers 1,836 square feet across three levels, with three bedrooms and two full bathrooms. The upper floor contains the bedrooms and one bathroom, while the main level provides a living room, formal dining room, and kitchen equipped with a refrigerator and stove. Hardwood flooring is featured throughout, and the finished basement adds recreational space and a second full bathroom. Built in 1925, the property has a flat roof and an R4 zoning designation.
Outdoor features include a private backyard and access to a community driveway. The 0.0413-acre property is located at the corner of Marine Park, with the park's green space, playgrounds, sports fields, and paths nearby. B2 and B100 bus service is available on either side of the property.
Outdoor features include a private backyard and access to a community driveway. The 0.0413-acre property is located at the corner of Marine Park, with the park's green space, playgrounds, sports fields, and paths nearby. B2 and B100 bus service is available on either side of the property.
Key Highlights
- 1,836‑square‑foot attached brick duplex
- Three bedrooms and two full bathrooms across three levels
- Finished basement with recreational space and second bathroom
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
$64,300
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
8.05%
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%
$1,286,000
$1.3M
Cap Rate 7%
$918,571
$918.6K
Cap Rate 9%
$714,444
$714.4K
Market Conditions
NOI Build-Up for 1,836 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
$93.6K $51.00/SF
− Vacancy
−$1.8K −$0.97/SF
EGI
$91.9K $50.03/SF
− OpEx
−$27.6K −$15.01/SF
NOI
$64.3K $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%
$1,286,000
Cap Rate 7%
$918,571
Cap Rate 9%
$714,444
Alternative Uses
Best Use
Multifamily LT 5
$918.6K
$803.8K – $1.07M
NOI $64,300 @ 7.0% cap · market cap 8.05%
Second Best
Apartment 5plus
$800.7K
$700.6K – $934.2K
NOI $56,051 @ 7.0% cap · market cap 7.02%
Theoretical Best
Specialty Retail
$1.52M
$1.33M – $1.77M
NOI $106,415 @ 7.0% cap · market cap 13.32%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
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Open Analytics
Current Use
Location Intelligence
Trade Area within ½ mile
1,973
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
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Market
Vacancy Rate% for Multifamily in Northeast region
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Frequently Asked Questions
What type of property is this?
Duplex - Three-level attached residence with a finished basement, two full bathrooms, and community driveway access.
Where is this duplex located?
The property is located at 1848 E 31st Street Brooklyn, NY.
What is the asking price?
The asking price for this property is $799,000.
What are key features of this property?
This property features: 1,836‑square‑foot attached brick duplex; Three bedrooms and two full bathrooms across three levels; Finished basement with recreational space and second bathroom
