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128 Carleton Ave 2,955 SF 100% Leased Office Building East Islip, NY 11730 $800,000 ($270.73/SF) 5.70% Cap Rate

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Investment Highlights

  • Main road across the street from Landmark Restaurant (Irish Coffee Pub)
  • Signage Allowed.
  • Renovated 2020

Executive Summary

Multi-tenant use building. This professional office building with 7 individual offices and detached storage garage, 2 bathrooms, Kitchenette and Conference Room. Building has been completely renovated in 2020 to include heating, cooling, siding, some windows, common areas, kitchenette, bathrooms and conference room. 100% Occupied. Key Features: -GST Zone -7 private offices + spacious conference room -Modern kitchenette and 2 renovated bathrooms -Detached garage for storage or expanded use -Complete 2020 renovation: HVAC, exterior, interiors -Multi-tenant configuration with strong rental potential -High-traffic spot opposite a landmark restaurant.

Data Room Click Here to Access

Financial Summary (Actual - 2025)

Annual Annual Per SF
Gross Rental Income $78,948 $26.72
Other Income - -
Vacancy Loss - -
Effective Gross Income $78,948 $26.72
Taxes $18,271 $6.18
Operating Expenses $17,244 $5.84
Total Expenses $35,515 $12.02
Net Operating Income $43,433 $14.70

Financial Summary (Actual - 2025)

Gross Rental Income
Annual $78,948
Annual Per SF $26.72
Other Income
Annual -
Annual Per SF -
Vacancy Loss
Annual -
Annual Per SF -
Effective Gross Income
Annual $78,948
Annual Per SF $26.72
Taxes
Annual $18,271
Annual Per SF $6.18
Operating Expenses
Annual $17,244
Annual Per SF $5.84
Total Expenses
Annual $35,515
Annual Per SF $12.02
Net Operating Income
Annual $43,433
Annual Per SF $14.70

Property Facts

Sale Type
Investment
Sale Condition
1031 Exchange
Property Type
Office
Building Size
2,955 SF
Building Class
C
Year Built
1955
Price
$800,000
Price Per SF
$270.73
Cap Rate
5.70%
NOI
$45,600
Percent Leased
100%
Tenancy
Multiple
Building Height
2 Stories
Typical Floor Size
950 SF
Slab To Slab
10’
Building FAR
0.15
Lot Size
0.44 AC
Zoning
GST - GST
Parking
17 Spaces (5.75 Spaces per 1,000 SF Leased)

Amenities

  • Signage
Walk Score®
Very Walkable (80)
What is a Walk Score®, Transit Score® & Bike Score®?
Walk Score® measures the walkability of any address.
Transit Score® measures access to public transit.
Bike Score® measures bikeability of a location.
What is a Walk Score®
, Transit Score® & Bike Score?
Walk Score® measures the walkability
of any address. Transit Score®
measures access to public transit. Bike Score®
measures bikeability of a location.®

Property Taxes

Property Taxes

Parcel Number
0500-346-00-01-00-079-003
Land Assessment
$8,100 (2024)
Improvements Assessment
$40,800 (2024)
Total Assessment
$48,900 (2024)
Annual Taxes
$18,271 ($6.18/SF)
Tax Year
2025
  • Listing ID: 39647191

  • Date on Market: 3/3/2026

  • Last Updated:

  • Address: 128 Carleton Ave, East Islip, NY 11730

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