Two-Family Duplex with
For Sale
$1,699,000
31 E Tenafly Avenue, Staten Island, NY 10312
Residential Income, Staten Island, NY
Property Size3,369 SF
Lot Size0.21 Acres
Price / SF$504.30
Days on Market42
Property Features for 31 E Tenafly Avenue
General Information
Property type
Residential Multi Family
Property subtype
Duplex
Zoning
R3-X
Bedrooms
4
Bathrooms
5
Full bathrooms
4
Half bathrooms
1
Rooms
Bedroom 4, Bedroom 1, Bathroom 2, Bathroom 4, Bedroom 2, Bathroom 3, Bathroom 5, Bedroom 3, Bathroom 1
Parking features
Driveway, Garage, Open
Security features
Security System
Patio and Porch features
Patio
Pool private
1
Interior features
Walk-In Closet(s), Central Vacuum, Ceiling Fan(s)
Fencing
Chain Link, Fenced
Basement
Finished, Full
Lot features
Front Yard, Back Yard
Subdivision
Annadale
Standard status
Active
APN
06249-0276
Size
3,369 SF
Lot size
0.21 Acres
Taxes and HOA fees
Tax Annual Amount
12104
Utilities
Sewer type
Public Sewer
Heating system
Natural Gas, Hot Water(Heating)
Cooling system
Central Air
Amenities
In-Ground Pool
Bar-B-Q w/gas line
8 Camera security system
Solar Panel Roof
Shed w/Epoxy floor
separate entrance storage room
paver backyard
Skylights
Wood-Burning Fireplace
Custom Eat-In Kitchen
Hardwood floors
attic with flooring
washer and dryer
Building Details
Year built
1989
Floors in Building
3
Number of units
2
Building materials
Brick, Vinyl Siding
Architectural style
Colonial
Listing Agency:
Martinelli Realty, Inc.
Listed By:
Amelia Martinelli · License #35MA0770890
(908) 305-9771
Added: Aug 21
Changed: Oct 1
Last Checked: Oct 1 at 2:06PM
MLS# 2604752
Copyright © 2026 Staten Island Board of Realtors. 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 detached duplex at 31 E Tenafly Avenue contains 3,369 square feet on a 0.2093-acre lot and was built in 1989. The main residence has three bedrooms, four bathrooms, hardwood floors, a custom kitchen, and a wood-burning fireplace. An oversized one-bedroom apartment includes its own washer and dryer. The finished, walk-out basement adds 1,800 square feet of space, with a second kitchen, full bathroom, laundry area, and great room. A built-in two-car garage, solar-panel roof, and fenced yard with a heated in-ground pool complete the property.
Zoned R3-X, the home is in Staten Island. The property also features four-zone baseboard heat, two-zone central air conditioning in the main residence, and a gas line for the outdoor barbecue. Shopping, parks, local transportation, and express buses to Manhattan are noted nearby.
Zoned R3-X, the home is in Staten Island. The property also features four-zone baseboard heat, two-zone central air conditioning in the main residence, and a gas line for the outdoor barbecue. Shopping, parks, local transportation, and express buses to Manhattan are noted nearby.
Key Highlights
- Detached two‑family property with a separate one‑bedroom apartment
- 3,369 square feet on a 0.2093‑acre lot; built in 1989
- Finished walk‑out basement with 1,800 SF of additional space
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
$83,251
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
4.90%
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%
$1,665,020
$1.7M
Cap Rate 7%
$1,189,300
$1.2M
Cap Rate 9%
$925,011
$925.0K
Market Conditions
NOI Build-Up for 3,369 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
$129.4K $38.40/SF
− Vacancy
−$10.4K −$3.10/SF
EGI
$118.9K $35.30/SF
− OpEx
−$35.7K −$10.59/SF
NOI
$83.3K $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%
$1,665,020
Cap Rate 7%
$1,189,300
Cap Rate 9%
$925,011
Alternative Uses
Best Use
Multifamily LT 5
$1.19M
$1.04M – $1.39M
NOI $83,251 @ 7.0% cap · market cap 4.90%
Second Best
Apartment 5plus
$1.05M
$915.5K – $1.22M
NOI $73,243 @ 7.0% cap · market cap 4.31%
Theoretical Best
Office A
$1.61M
$1.41M – $1.88M
NOI $112,525 @ 7.0% cap · market cap 6.62%
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
403
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
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 - A separate one-bedroom apartment and finished lower-level space add flexibility to this detached Staten Island home.
Where is this duplex located?
The property is located at 31 E Tenafly Avenue Staten Island, NY.
What is the asking price?
The asking price for this property is $1,699,000.
What are key features of this property?
This property features: Detached two‑family property with a separate one‑bedroom apartment; 3,369 square feet on a 0.2093‑acre lot; built in 1989; Finished walk‑out basement with 1,800 SF of additional space
