Renovated Two-Family
New
For Sale
$1,380,000
133 Gelston Ave, Brooklyn, NY 11209
Each residence has its own boiler and heating system, with the property delivered vacant at closing.
Property Size1,600 SF
Lot Size0.05 Acres
Days on Market2
Property Features for 133 Gelston Ave
General Information
Standard status
Active
Size
1,600 SF
Lot size
0.05 Acres
Property subtype
Multi Family
Units
Unit Mix
1 x 3BR/2BA, 1 x 4BR/2BA
Multifamily Units
2
Additional Details
Public Transit
Yes
Taxes and HOA fees
Annual Taxes
$8,005
Building Details
Building Size
1,600 SF
Year Built
1899
Buildings
1
Stories
2
Listing Agency:
Tiger Realty
Listed By:
Yan Mei (Jamie) Zheng
(917) 708-9966
Source:
Elliman
Added: Sep 26
Last Checked: Sep 26 at 2:57PM
Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Tiger Realty
Investment Insights
Based on property information with market context.
This renovated duplex contains two apartments: a first-floor home with three bedrooms and two bathrooms, and a second-floor residence with four bedrooms and two bathrooms. A finished basement with its own entrance adds usable space. The building measures 18x50 on an 18x116 lot. Improvements include a roof installed in 2020 and separate boilers and heating systems for the apartments. The property is expected to be vacant at closing.
In Bay Ridge, the home is near the R train, shopping, restaurants, parks, and schools. It was built in 1899.
In Bay Ridge, the home is near the R train, shopping, restaurants, parks, and schools. It was built in 1899.
Key Highlights
- Two apartments: 3 bedrooms and 2 bathrooms downstairs; 4 bedrooms and 2 bathrooms upstairs
- Building measures 18x50 on an 18x116 lot
- Finished basement with a separate entrance
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
$56,035
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%
$1,120,700
$1.1M
Cap Rate 7%
$800,500
$800.5K
Cap Rate 9%
$622,611
$622.6K
Market Conditions
NOI Build-Up for 1,600 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
$81.6K $51.00/SF
− Vacancy
−$1.6K −$0.97/SF
EGI
$80.0K $50.03/SF
− OpEx
−$24.0K −$15.01/SF
NOI
$56.0K $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%
$1,120,700
Cap Rate 7%
$800,500
Cap Rate 9%
$622,611
Alternative Uses
Best Use
Multifamily LT 5
$800.5K
$700.4K – $933.9K
NOI $56,035 @ 7.0% cap · market cap 4.06%
Second Best
Apartment 5plus
$697.8K
$610.6K – $814.1K
NOI $48,846 @ 7.0% cap · market cap 3.54%
Theoretical Best
Specialty Retail
$1.32M
$1.16M – $1.55M
NOI $92,736 @ 7.0% cap · market cap 6.72%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
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Current Use
Lease Details
2
Residential units
Location Intelligence
Trade Area within ½ mile
3,668
Businesses Nearby
Explore this area
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
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
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Frequently Asked Questions
What type of property is this?
Duplex - Each residence has its own boiler and heating system, with the property delivered vacant at closing.
Where is this duplex located?
The property is located at 133 Gelston Ave Brooklyn, NY.
What is the asking price?
The asking price for this property is $1,380,000.
What are key features of this property?
This property features: Two apartments: 3 bedrooms and 2 bathrooms downstairs; 4 bedrooms and 2 bathrooms upstairs; Building measures 18x50 on an 18x116 lot; Finished basement with a separate entrance
