Two-Family Duplex with
For Sale
$990,000
17 Alexander Avenue, Staten Island, NY 10312
Residential, Staten Island, NY
Property Size2,088 SF
Lot Size0.07 Acres
Price / SF$474.14
Days on Market45
Property Features for 17 Alexander Avenue
General Information
Property type
Residential Multi Family
Property subtype
Other
Zoning
R3-1
Bedrooms
6
Bathrooms
4
Full bathrooms
3
Rooms
Bedroom 1, Bedroom 6, Bedroom 4, Bathroom 3, Bedroom 2, Bedroom 5, Bathroom 2, Bathroom 4, Bedroom 3, Bathroom 1
Interior features
Central Air, Disposal, Garage Door Opener(s), Laundry Area, Refrigerator
Basement
Finished
Subdivision
Arden Heights
Standard status
Active
Size
2,088 SF
Lot size
0.07 Acres
Taxes and HOA fees
Tax Annual Amount
8332
Building Details
Year built
1978
Floors in Building
2
Number of units
2
Flooring type
Tile
Roof type
Asphalt
Listing Agency:
Momentum Real Estate LLC
(718) 382-0001
Listed By:
Henry Xu Hua Chen
(718) 382-0005
Added: Aug 11
Changed: Sep 15
Last Checked: Sep 24 at 8:06PM
MLS# 503716
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 1978 semi-detached duplex contains two three-bedroom residences within 2,088 square feet. The upper unit provides two full bathrooms, a combined living and dining area, and a kitchen with stainless steel appliances. The lower unit includes one full bathroom, an open kitchen, and connected living and dining areas. Central air, tile flooring, laundry space, and a refrigerator are among the interior features.
A fully finished basement adds a fourth full bathroom, an entertainment room, and storage space. The property also includes a built-in garage with a door opener. Located at 17 Alexander Avenue in Staten Island, the 0.0712-acre property is zoned R3-1 and has access to local and express bus transportation.
A fully finished basement adds a fourth full bathroom, an entertainment room, and storage space. The property also includes a built-in garage with a door opener. Located at 17 Alexander Avenue in Staten Island, the 0.0712-acre property is zoned R3-1 and has access to local and express bus transportation.
Key Highlights
- Two‑family duplex with 2,088 square feet of building area
- Two three‑bedroom units with 3 full bathrooms across the residences
- Finished basement includes a full bathroom, entertainment room, and storage area
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
$51,596
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
5.21%
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%
$1,031,920
$1.0M
Cap Rate 7%
$737,086
$737.1K
Cap Rate 9%
$573,289
$573.3K
Market Conditions
NOI Build-Up for 2,088 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
$80.2K $38.40/SF
− Vacancy
−$6.5K −$3.10/SF
EGI
$73.7K $35.30/SF
− OpEx
−$22.1K −$10.59/SF
NOI
$51.6K $24.71/SF
Area
ZIP 10312
Vacancy
8.07%
Lease Rate
$38.40 /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%
$1,031,920
Cap Rate 7%
$737,086
Cap Rate 9%
$573,289
Alternative Uses
Best Use
Multifamily LT 5
$737.1K
$645.0K – $859.9K
NOI $51,596 @ 7.0% cap · market cap 5.21%
Second Best
Apartment 5plus
$648.5K
$567.4K – $756.6K
NOI $45,394 @ 7.0% cap · market cap 4.59%
Theoretical Best
Office A
$996.3K
$871.8K – $1.16M
NOI $69,740 @ 7.0% cap · market cap 7.04%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
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Open Analytics
Current Use
Lease Details
2
Residential units
Location Intelligence
Trade Area within ½ mile
552
Businesses Nearby
Explore this area
Business Placement
Demographics for 10312, NY
61,642
Population
22,547
Households
2.7
Avg Household Size
43
Median Age
41%
College-Educated
92%
High-School Grad
6.9 sq mi
ZIP Area
8,934
Density / Sq Mi
$111,434
Median Household Income
$62,700
Median Earnings
$1,911
Median Rent
$698,900
Median Home Value
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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 - Semi-detached residential income property with two three-bedroom units, finished lower-level space, and R3-1 zoning.
Where is this duplex located?
The property is located at 17 Alexander Avenue Staten Island, NY.
What is the asking price?
The asking price for this property is $990,000.
What are key features of this property?
This property features: Two‑family duplex with 2,088 square feet of building area; Two three‑bedroom units with 3 full bathrooms across the residences; Finished basement includes a full bathroom, entertainment room, and storage area
