Detached Duplex with
For Sale
$699,000
1799 E 51st Street, Brooklyn, NY 11234
Residential, Duplex, Brooklyn, NY
Property Size810 SF
Lot Size0.07 Acres
Price / SF$862.96
Days on Market235
Property Features for 1799 E 51st Street
General Information
Property type
Residential
Property subtype
Duplex
Zoning
R1
Bedrooms
2
Bathrooms
3
Full bathrooms
1
Half bathrooms
2
Rooms
Bedroom 1, Bedroom 2, Bathroom 1, Bathroom 3, Bathroom 2
Parking features
Garage - Detached
Interior features
Dishwasher, Dryer, Laundry Area, Microwave, Refrigerator, Stove, Washer
Basement
Finished
Subdivision
Old Mill Basin
Standard status
Active
Size
810 SF
Lot size
0.07 Acres
Taxes and HOA fees
Tax Annual Amount
5085
Building Details
Year built
1925
Floors in Building
2
Flooring type
Hardwood, Ceramic
Building materials
Wood Frame
Architectural style
Other
Listing Agency:
RE/MAX Edge · RE/MAX International
(718) 612-3088
Listed By:
Barbara Horan
(718) 612-3088
Added: Jan 7
Changed: Aug 29
Last Checked: Aug 30 at 11:06PM
MLS# 498232
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 fully detached duplex at 1799 E 51st Street in Brooklyn offers 810 square feet with two bedrooms and three bathrooms. The wood-frame residence was built in 1925 and includes a finished basement, private driveway, detached garage, and backyard on a 0.0689-acre lot. Hardwood and ceramic flooring provide distinct interior finishes, while the kitchen includes stainless-steel appliances, quartz countertops, a dishwasher, microwave, refrigerator, and stove. Laundry equipment includes a washer and dryer, and the home also features an open living and dining area. R1 zoning and the property's Brooklyn location add relevant context for residential ownership. A detached garage, dedicated parking area, and outdoor space round out the physical improvements.
Key Highlights
- Fully detached two‑bedroom duplex with 3 bathrooms
- 810 square feet on a 0.0689‑acre lot
- Finished basement with bath on every floor
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
$28,368
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
4.06%
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%
$567,360
$567.4K
Cap Rate 7%
$405,257
$405.3K
Cap Rate 9%
$315,200
$315.2K
Market Conditions
NOI Build-Up for 810 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
$41.3K $51.00/SF
− Vacancy
−$785 −$0.97/SF
EGI
$40.5K $50.03/SF
− OpEx
−$12.2K −$15.01/SF
NOI
$28.4K $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%
$567,360
Cap Rate 7%
$405,257
Cap Rate 9%
$315,200
Alternative Uses
Best Use
Multifamily LT 5
$405.3K
$354.6K – $472.8K
NOI $28,368 @ 7.0% cap · market cap 4.06%
Second Best
Apartment 5plus
$353.3K
$309.1K – $412.1K
NOI $24,728 @ 7.0% cap · market cap 3.54%
Theoretical Best
Specialty Retail
$670.7K
$586.9K – $782.5K
NOI $46,948 @ 7.0% cap · market cap 6.72%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Location Intelligence
Trade Area within ½ mile
2,583
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 - Two-bedroom detached duplex with a finished basement, private drive, backyard, and three bathrooms.
Where is this duplex located?
The property is located at 1799 E 51st Street Brooklyn, NY.
What is the asking price?
The asking price for this property is $699,000.
What are key features of this property?
This property features: Fully detached two‑bedroom duplex with 3 bathrooms; 810 square feet on a 0.0689‑acre lot; Finished basement with bath on every floor
