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Multi-Tenant Office Building with 7 Offices
For Sale
$800,000

128 Carleton Avenue, East Islip, NY 11730

Commercial Sale, East Islip, NY

Property SizeContact for details
Lot Size0.28 Acres
Days on Market185

Property Features for 128 Carleton Avenue

General Information

Property type Commercial Sale
Property subtype Office
Zoning GMT
Directions Carleton Avenue across street from Irish Coffee Pub.
Standard status Active
APN 0500-346-00-01-00-079-003
Lot size 0.28 Acres

Taxes and HOA fees

Tax Year 2026
Tax Annual Amount 18271

Utilities

Sewer type Public Sewer
Heating system Hot Water(Heating), Natural Gas
Cooling system Wall/Window Unit(s), Ductless, Window Unit(s)
Water source Public

Amenities

conference room
kitchenette
detached garage

Building Details

Floors in Building 2
Number of units 8
Building materials Frame, Vinyl Siding
Listing Agency: Jones Hollow Realty Group Inc
Listed By: Brad Wilson AHWD SFR
Added: Feb 16 Changed: Aug 20 Last Checked: Aug 20 at 9:06AM
MLS# 961392

Copyright © 2026 OneKey MLS. 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 renovated, multi-tenant office building is configured with seven individual private offices, a spacious conference room, a kitchenette, and two bathrooms. A detached storage garage is also included for storage or expanded use. The property was completely renovated in 2020, including heating and cooling systems, exterior siding, some windows, and updates to common areas, the kitchenette, bathrooms, and conference room.

The building sits on a 0.28-acre lot and is in GMT zoning. It is 100% occupied, supporting an in-place office setup. Utilities include public water and public sewer, with hot water heating using natural gas. Cooling is provided via wall/window units, ductless systems, and window units.

Construction materials include frame construction with vinyl siding. Additional features include a multi-tenant layout designed to support office operations in a single building.

Key Highlights

  • 0.28‑acre multi‑tenant office building in GMT zoning
  • Seven private offices plus spacious conference room
  • Complete 2020 renovation including HVAC and exterior siding updates

Property Analytics

Current Use

Elaine Camlet, Esq. ... Law Firm Frans Barbershop Barber Shop Cory J. Covert, ... Law Firm Tom's Tax Prep Accounting Firm Therapeutic Escape Massage ... Alternative Medicine Practice

Suggested Use

Top Pick Dental Office Parking Lot & Garage Auto Parts Store Restaurant Hotel & Motel Accounting Firm

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

7
Office units
100%
Occupancy
Multi-tenant
Tenancy

Location Intelligence

Trade Area within ½ mile

534
Businesses Nearby

Demographics for 11730, NY

14,523
Population
5,230
Households
2.8
Avg Household Size
43
Median Age
39%
College-Educated
95%
High-School Grad
4.5 sq mi
ZIP Area
3,227
Density / Sq Mi
$146,190
Median Household Income
$64,934
Median Earnings
$2,508
Median Rent
$577,600
Median Home Value

Market

Vacancy Rate% for Office in Northeast region

13.1% 2019
15.4% 2020
17.6% 2021
19.1% 2022
20.2% 2023
20.9% 2024
19.9% 2025
Rey
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.

Frequently Asked Questions

What type of property is this?
Office building - Renovated multi-tenant office building with seven private offices, conference room, and detached storage garage in GMT zoning.
Where is this office building located?
The property is located at 128 Carleton Avenue East Islip, NY.
What is the asking price?
The asking price for this property is $800,000.
What are key features of this property?
This property features: 0.28‑acre multi‑tenant office building in GMT zoning; Seven private offices plus spacious conference room; Complete 2020 renovation including HVAC and exterior siding updates
More about this property
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