Detached Duplex with
New
For Sale
$524,900
170 Treadwell Avenue, Staten Island, NY 10302
Residential Income, Staten Island, NY
Property Size1,822 SF
Lot Size0.08 Acres
Price / SF$288.09
Days on Market2
Property Features for 170 Treadwell Avenue
General Information
Property type
Residential Multi Family
Property subtype
Duplex
Zoning
R3A
Bedrooms
4
Bathrooms
3
Full bathrooms
2
Half bathrooms
1
Rooms
Bedroom 4, Bedroom 1, Bathroom 3, Bedroom 2, Bathroom 1, Bathroom 2, Bedroom 3
Parking features
Garage, Driveway, Off Street
Patio and Porch features
Deck
Exterior features
Balcony
Basement
Finished
Lot features
Front Yard, Back Yard
Subdivision
Port Richmond
Standard status
Active
APN
1096-46
Size
1,822 SF
Lot size
0.08 Acres
Taxes and HOA fees
Tax Annual Amount
4616
Utilities
Sewer type
Public Sewer
Heating system
Hot Water(Heating), Natural Gas
Amenities
open front porch
rear deck/stairs to yard
balcony
Building Details
Year built
1910
Floors in Building
2
Number of units
2
Building materials
Vinyl Siding
Architectural style
Colonial
Listing Agency:
Gateway Arms Realty Corp.
(718) 273-3800
Listed By:
Laura Volsario · License #10301213299
(917) 685-5555
Added: Aug 27
Changed: Aug 28
Last Checked: Aug 28 at 5:06AM
MLS# 2604839
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 is a Colonial-style property built in 1910, offering 1,822 square feet on a 0.081-acre lot. The layout includes two gas meters, two electric meters, and one hot-water heating unit. Vinyl siding, an open front porch, rear deck with stairs to the yard, and a balcony are among the exterior features. The basement and attic may provide additional living space, while the property requires work.
Parking is provided through a detached two-car garage, driveway, and additional off-street spaces. The property is served by public sewer and carries R3A zoning. A cash purchase is required, with no mortgage contingency, and showings require a written offer to purchase together with proof of funds.
Parking is provided through a detached two-car garage, driveway, and additional off-street spaces. The property is served by public sewer and carries R3A zoning. A cash purchase is required, with no mortgage contingency, and showings require a written offer to purchase together with proof of funds.
Key Highlights
- Two‑family detached Colonial built in 1910
- 1,822 square feet on a 0.081‑acre lot
- Detached two‑car garage, driveway, and off‑street parking
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
$45,310
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
8.63%
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%
$906,200
$906.2K
Cap Rate 7%
$647,286
$647.3K
Cap Rate 9%
$503,444
$503.4K
Market Conditions
NOI Build-Up for 1,822 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
$67.8K $37.20/SF
− Vacancy
−$3.1K −$1.67/SF
EGI
$64.7K $35.53/SF
− OpEx
−$19.4K −$10.66/SF
NOI
$45.3K $24.87/SF
Area
Staten Island, NY
Vacancy
4.50%
Lease Rate
$37.20 /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%
$906,200
Cap Rate 7%
$647,286
Cap Rate 9%
$503,444
Alternative Uses
Best Use
Multifamily LT 5
$647.3K
$566.4K – $755.2K
NOI $45,310 @ 7.0% cap · market cap 8.63%
Second Best
Apartment 5plus
$577.2K
$505.1K – $673.4K
NOI $40,405 @ 7.0% cap · market cap 7.70%
Theoretical Best
Office A
$869.4K
$760.7K – $1.01M
NOI $60,855 @ 7.0% cap · market cap 11.59%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Lease Details
2
Residential units
Yes
Utilities to site
Location Intelligence
Trade Area within ½ mile
1,384
Businesses Nearby
Explore this area
Business Placement
Demographics for 10302, NY
20,931
Population
6,927
Households
3
Avg Household Size
35
Median Age
29%
College-Educated
85%
High-School Grad
1.2 sq mi
ZIP Area
17,443
Density / Sq Mi
$76,089
Median Household Income
$43,608
Median Earnings
$1,800
Median Rent
$586,300
Median Home Value
Market
Vacancy Rate% for Multifamily in Northeast region
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.
Frequently Asked Questions
What type of property is this?
Duplex - Two-family Colonial with off-street parking, rear deck, and balcony.
Where is this duplex located?
The property is located at 170 Treadwell Avenue Staten Island, NY.
What is the asking price?
The asking price for this property is $524,900.
What are key features of this property?
This property features: Two‑family detached Colonial built in 1910; 1,822 square feet on a 0.081‑acre lot; Detached two‑car garage, driveway, and off‑street parking
