Two-Family Residence with In-Ground
91 Alter Avenue Staten Island, NY 10305
New
MULTI_FAMILY - Colonial - Staten Island, NY
Property size:
3,450 SFLot size:
0.11 AcresPrice / SF:
$398/SF- Added:
- Jul 9, 2026
- Days on Market:
- 1
- Last Refresh:
- Jul 9 at 9:06 pm
Property Features for 91 Alter Avenue
General Information
- Property type
- Residential Multi Family
- Property subtype
- Other
- Zoning
- R3X
- Bedrooms
- 6
- Bathrooms
- 4
- Rooms
- Bedroom 1, Bedroom 5, Bedroom 4, Bedroom 2, Bedroom 3, Bathroom 2, Bedroom 6, Bathroom 3, Bathroom 4, Bathroom 1
- Parking features
- On Street, Off Street
- Patio and Porch features
- Patio
- Exterior features
- Balcony
- Basement
- Apartment, Full
- Standard status
- Active
- Size
- 3,450 SF
- Lot size
- 0.11 Acres
Taxes and HOA fees
- Tax Annual Amount
- 11347
Utilities
- Sewer type
- Public Sewer
- Heating system
- Natural Gas, Hot Water(Heating)
- Cooling system
- Central Air
Building Details
- Year built
- 2006
- Floors in Building
- 2
- Number of units
- 2
- Building materials
- Brick, Vinyl Siding
- Architectural style
- Colonial
Listing agent Michael Gentilesco (917) 838-0843
Listing office Robert DeFalco Realty, Inc. 1678 Hylan Blvd., STATEN ISLAND, NY (718) 987-7900
Listing date Jul 9, 2026
MLS# 2603870
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.
Investment Insights
Based on property information with market context.
Located at 91 Alter Avenue on a 50-by-100 lot, this two-family colonial residence offers a 30-by-40 building footprint. The home features an expansive two-story entryway, newly redone hardwood floors throughout, and a main residence configured as a 4–5 bedroom layout with three bathrooms. The main level also includes a spacious family room with fireplace, and a cherry wood kitchen with Viking appliances. The lower level provides a legal 2-bedroom apartment that is described as spacious, with its own independent living configuration.
The property includes a fully paved yard and an in-ground pool, along with a built-in garage and driveway for off-street parking. Commuting and everyday access are supported by proximity to bus/train transportation as well as major routes including SIE and Hylan Blvd.
This setup can fit buyers looking for a two-family structure designed for multi-generational living or for maintaining a rental unit within the same building. The combination of a larger main home plus a legal second apartment supports practical flexibility in how the space can be used, while the on-site parking and outdoor recreation features add day-to-day usability.
The property includes a fully paved yard and an in-ground pool, along with a built-in garage and driveway for off-street parking. Commuting and everyday access are supported by proximity to bus/train transportation as well as major routes including SIE and Hylan Blvd.
This setup can fit buyers looking for a two-family structure designed for multi-generational living or for maintaining a rental unit within the same building. The combination of a larger main home plus a legal second apartment supports practical flexibility in how the space can be used, while the on-site parking and outdoor recreation features add day-to-day usability.
Key Highlights
- Colonial 2‑family home built in 2006 on a 50x100 lot
- Building size 30x40 with expansive 2‑story entryway
- Main home offers 4–5 bedrooms and 3 bathrooms; family room includes a fireplace
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 | $140.8k | $40.80 |
| − Vacancy | −$11.4k | −$3.29 |
| EGI | $129.4k | $37.51 |
| − OpEx | −$38.8k | −$11.25 |
| NOI | $90.6k | $26.26 |
3,450 SF · lease $40.80/SF/yr · vacancy 8.07% · expense 30.00%
Alternative Uses
Best Use
Multifamily LT 5
$1.29M
$1.13M – $1.51M
NOI $90,580 @ 7.0% cap · market cap 6.59%
Second Best
Apartment 5plus
$1.19M
$1.04M – $1.39M
NOI $83,338 @ 7.0% cap · market cap 6.06%
Theoretical Best
Office A
$1.65M
$1.44M – $1.92M
NOI $115,231 @ 7.0% cap · market cap 8.38%
Zoning and permitted uses should be independently verified with local authorities.
Property Analytics
Property Profile
Location Intelligence
Current Use by Public Records
Duplexes
Similar For Sale Nearby
FAQs
What type of property is this?
Duplex - Two-unit colonial with a paved yard, garage, and off-street parking, offering flexibility for owner-occupancy or rental income.
Where is this duplex located?
The property is located at 91 Alter Avenue Staten Island, NY.
What is the asking price?
The asking price for this property is $1,375,000.
What are key features of this property?
This property features: Colonial 2‑family home built in 2006 on a 50x100 lot; Building size 30x40 with expansive 2‑story entryway; Main home offers 4–5 bedrooms and 3 bathrooms; family room includes a fireplace
