Two-Family Home with 6-Over-6
666 Armstrong Avenue, Staten Island, NY 10308
New
MULTI_FAMILY - Colonial - Staten Island, NY
Property size:
2,680 SFLot size:
0.13 AcresPrice / SF:
$429/SF- Added:
- Jul 1, 2026
- Days on Market:
- 1
- Last Refresh:
- Jul 1 at 10:06 pm
Property Features for 666 Armstrong Avenue
General Information
- Property type
- Residential Multi Family
- Property subtype
- Other
- Zoning
- R3-1
- Bedrooms
- 6
- Bathrooms
- 4
- Rooms
- Bathroom 5, Bedroom 4, Bedroom 5, Bedroom 6, Bedroom 1, Bedroom 3, Bedroom 2, Bathroom 1, Bathroom 2, Bathroom 4, Bathroom 3
- Parking features
- Driveway, On Street
- Patio and Porch features
- Deck, Patio
- Interior features
- Walk-In Closet(s), Ceiling Fan(s)
- Basement
- Full, Partially Finished
- Standard status
- Active
- APN
- 5054830051
- Size
- 2,680 SF
- Lot size
- 0.13 Acres
Taxes and HOA fees
- Tax Annual Amount
- 8233
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
- 2
- Building materials
- Brick, Vinyl Siding
- Architectural style
- Colonial
Listing agent John E Martelotti (917) 217-0599
Listing office Keller Williams Realty Staten Island 1919 Hylan Blvd., Staten Island, NY (718) 766-7159
Listing date Jul 1, 2026
MLS# 2603723
Listing URL
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.
HighLights
- Two‑family home with a 6‑over‑6 layout (six rooms per floor) for flexible multi‑generational living or rental use
- Each unit includes a formal living room, formal dining area, eat‑in kitchen, full bathroom, primary bedroom with private half bathroom, and two additional bedrooms
- Private driveway plus on‑street parking, with an extra‑deep lot offering additional backyard space
- Full basement with storage and laundry access; includes a half bathroom and plumbing set up for an additional kitchen
- Brick and vinyl siding exterior; forced air natural gas heating and central air conditioning
- Walk‑in closets, ceiling fans, deck and patio for outdoor and everyday comfort
Overview
This well-maintained two-family home offers a classic 6-over-6 layout with spacious floor plans on both the first and second floors. Each unit includes a formal living room, a formal dining area, an eat-in kitchen, a full bathroom, and a primary bedroom with a private half bathroom. Two additional bedrooms provide ample closet space. The property also features a full basement that provides exceptional storage, laundry access, and room for additional recreational space. The full floor basement includes a half bathroom and plumbing set up for an extra kitchen.
The residence sits on a lot of about 0.13 acres and includes a large private driveway. The extra-deep lot supports an extended backyard area for outdoor use.
With two separate six-room units, the home can support rental flexibility for investors or multi-generational living arrangements for owner-occupants. The full basement with half bathroom and plumbing for an additional kitchen may appeal to tenants or buyers seeking expanded functionality beyond the main living levels, while laundry access and substantial storage are already built into the existing configuration. Zoning is R3-1.
The residence sits on a lot of about 0.13 acres and includes a large private driveway. The extra-deep lot supports an extended backyard area for outdoor use.
With two separate six-room units, the home can support rental flexibility for investors or multi-generational living arrangements for owner-occupants. The full basement with half bathroom and plumbing for an additional kitchen may appeal to tenants or buyers seeking expanded functionality beyond the main living levels, while laundry access and substantial storage are already built into the existing configuration. Zoning is R3-1.
Local Financial Insights For Multifamily LT 5
Simulate Cap Rate and NOI
NOI Build-Up
- 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.
| Component | $ | $/SF |
|---|---|---|
| Gross rent | $99.7k | $37.20 |
| − Vacancy | −$4.5k | −$1.67 |
| EGI | $95.2k | $35.53 |
| − OpEx | −$28.6k | −$10.66 |
| NOI | $66.6k | $24.87 |
2,680 SF · lease $37.20/SF/yr · vacancy 4.50% · expense 30.00%
Alternative Uses
Best Use
Multifamily LT 5
$952.1K
$833.1K – $1.11M
NOI $66,647 @ 7.0% cap · market cap 5.80%
Second Best
Apartment 5plus
$849.0K
$742.9K – $990.5K
NOI $59,432 @ 7.0% cap · market cap 5.17%
Theoretical Best
Office A
$1.28M
$1.12M – $1.49M
NOI $89,513 @ 7.0% cap · market cap 7.78%
Zoning and permitted uses should be independently verified with local authorities.
Property Profile
Location Intelligence
Current Use by Public Records
Duplexes
Location Insight
- Map
- Local Demand
- City
- Staten Island
- County
- Richmond
- State
- New York
- Longitude
- -74.160633
- Latitude
- 40.550893
Nearby Similar for Sale
FAQs
What type of property is this?
Duplex - Well-maintained two-family residence with a 6-over-6 configuration, private driveway, and full basement with laundry access.
Where is this duplex located?
The property is located at 666 Armstrong Avenue Staten Island, NY.
What is the asking price?
The asking price for this property is $1,150,000.
What are key features of this property?
This property features: Two‑family home with a 6‑over‑6 layout (six rooms per floor) for flexible multi‑generational living or rental use; Each unit includes a formal living room, formal dining area, eat‑in kitchen, full bathroom, primary bedroom with private half bathroom, and two additional bedrooms; Private driveway plus on‑street parking, with an extra‑deep lot offering additional backyard space
