Two-Family Duplex with
New
For Sale
$1,088,888
643 Rathbun Avenue, Staten Island, NY 10312
Residential Income, Staten Island, NY
Property Size2,538 SF
Lot Size0.09 Acres
Price / SF$429.03
Days on Market5
Property Features for 643 Rathbun Avenue
General Information
Property type
Residential Multi Family
Property subtype
Duplex
Zoning
R3X
Bedrooms
4
Bathrooms
3
Full bathrooms
2
Rooms
Bedroom 4, Bathroom 3, Bathroom 1, Bathroom 2, Bedroom 1, Bedroom 3, Bedroom 2
Parking features
Garage, Driveway
Interior features
Ceiling Fan(s)
Fencing
Fenced
Lot features
Front Yard, Back Yard
Subdivision
Huguenot
Standard status
Active
APN
6843-0173
Size
2,538 SF
Lot size
0.09 Acres
Taxes and HOA fees
Tax Annual Amount
8147
Utilities
Sewer type
Public Sewer
Heating system
Forced Air, Natural Gas
Cooling system
Central Air
Building Details
Year built
1970
Floors in Building
2
Number of units
1
Building materials
Stone, Vinyl Siding
Architectural style
Ranch
Listing Agency:
Homefinders of SI Inc.
Listed By:
Shao Yu He
(718) 761-5000
Added: Oct 22
Changed: Oct 26
Last Checked: Oct 26 at 7:06PM
MLS# 2605985
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.
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Investment Insights
Based on property information with market context.
Configured as a legal two-family residence, this 2,538-square-foot ranch-style home has four bedrooms and three bathrooms. The property includes a garage and driveway, central air conditioning, and forced-air heating powered by natural gas. Stone and vinyl siding are used on the exterior, with a fenced yard and public sewer service.
Built in 1970, the home sits on a 0.0918-acre lot in Staten Island, New York. Its R3X zoning designation is also noted.
Built in 1970, the home sits on a 0.0918-acre lot in Staten Island, New York. Its R3X zoning designation is also noted.
Key Highlights
- Legal two‑family residence with four bedrooms and three bathrooms
- 2,538 square feet on a 0.0918‑acre lot
- Ranch‑style construction, built in 1970
Financial Insights
Estimated NOI and Cap Rate
NOI / Yr
$62,716
Cap Rate
5.76%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,254,320
$1.3M
Cap Rate 7%
$895,943
$895.9K
Cap Rate 9%
$696,844
$696.8K
Market Conditions
NOI Build-Up for 2,538 SF
Gross rent
$97.5K $38.40/SF
− Vacancy
−$7.9K −$3.10/SF
EGI
$89.6K $35.30/SF
− OpEx
−$26.9K −$10.59/SF
NOI
$62.7K $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 Rate 5%
$1,254,320
Cap Rate 7%
$895,943
Cap Rate 9%
$696,844
Alternative Uses
Best Use
Multifamily LT 5
$895.9K
$784.0K – $1.05M
NOI $62,716 @ 7.0% cap · market cap 5.76%
Second Best
Apartment 5plus
$788.2K
$689.7K – $919.6K
NOI $55,177 @ 7.0% cap · market cap 5.07%
Theoretical Best
Office A
$1.21M
$1.06M – $1.41M
NOI $84,770 @ 7.0% cap · market cap 7.79%
Zoning and permitted uses should be independently verified with authorities.
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Lease Details
2
Residential units
Location Intelligence
Trade Area within ½ mile
432
Businesses Nearby
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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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Market
Vacancy Rate% for Multifamily in Northeast region
Frequently Asked Questions
What type of property is this?
Duplex - This legal two-family residence includes four bedrooms, three bathrooms, and a garage.
Where is this duplex located?
The property is located at 643 Rathbun Avenue Staten Island, NY.
What is the asking price?
The asking price for this property is $1,088,888.
What are key features of this property?
This property features: Legal two‑family residence with four bedrooms and three bathrooms; 2,538 square feet on a 0.0918‑acre lot; Ranch‑style construction, built in 1970
