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      55 Carleton Avenue, East Islip, NY 11730
      55 Carleton Avenue, East Islip, NY 11730
      $1,800,000
      42,689sqft
      0.98acres
      Commercial Sale

      55 Carleton Avenue, East Islip, NY 11730

      Listing by: Marylou Swan Realty Corp
      1 - 1 of 1 results
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      Display of MLS Data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals.
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      OneKey® MLS
      55 Carleton Avenue, East Islip, NY 11730
      55 Carleton Avenue, East Islip, NY 11730
      55 Carleton Avenue, East Islip, NY 11730
      55 Carleton Avenue, East Islip, NY 11730
      55 Carleton Avenue, East Islip, NY 11730
      55 Carleton Avenue, East Islip, NY 11730
      55 Carleton Avenue, East Islip, NY 11730
      55 Carleton Avenue, East Islip, NY 11730
      55 Carleton Avenue, East Islip, NY 11730
      55 Carleton Avenue, East Islip, NY 11730
      55 Carleton Avenue, East Islip, NY 11730
      55 Carleton Avenue, East Islip, NY 11730
      55 Carleton Avenue, East Islip, NY 11730
      55 Carleton Avenue, East Islip, NY 11730
      55 Carleton Avenue, East Islip, NY 11730
      $1,800,000
      42,689sqft
      0.98acres

      55 Carleton Avenue, East Islip, NY 11730

      City/Town:East Islip   Post Office: East Islip     

      Commercial Sale by Joseph E. DonaghyMarylou Swan Realty Corp.

      Data checked -. Listing last updated 108 days ago.
      1. Overview
      2. Details
      3. More 

      55 Carleton Avenue presents a rare chance to acquire a high-visibility, 0.98-acre commercial property on Carleton Avenue—the main thoroughfare into East Islip. Zoned GSD, this site is ideally suited for office, medical, or veterinary use, offering exceptional exposure and accessibility. This unique opportunity allows for expansion of additional space of up to 11,000 sq. ft. or redevelop the entire site for your new building up to 17,000 ft. sq. Only two miles from the Federal Court House and 2.5 miles from Northwell South Shore University Hospital with easy access from Sunrise Hwy and Southern State Parkway. The East Islip area boasts strong commercial activity and highly desirable demographics, making this a prime location for professional services seeking long-term growth and visibility.

      Internet Serviceability
      Details
        Property type
      Commercial Sale
        Year built
      1975
        Heating
      Forced Air, Natural Gas
        Cooling
      Central Air, Ductwork
        Garage
      No
        City/Town
      East Islip
        Post Office
      East Islip
        Parking spots
      18
      928396
      MLS ID
      Active
      Status
      10/24/2025
      On Market Date
        View
      Exterior features
      Lot features
      Flooring
      Combination
      Monthly taxes
      $2,447
      Yearly taxes
      $29,360.36
      Schools
      -
      Open Houses
      In-Person
      No upcoming in-person open houses
      Virtual
      No upcoming virtual open houses
      Contact Agent
      Listing By:
      JD
      Joseph E. Donaghy
      GD
      Gillian Donaghy
      JD
      Joseph E. Donaghy
      Real Estate Salesperson, Marylou Swan Realty Corp
      Direct Number 
       
      GD
      Gillian Donaghy
      Real Estate Salesperson, Oasis Realty Group LLC
      Direct Number 
       
      Location
      From Sunrise Hwy, take exit 46 South Carleton Ave. Continue south for approximately 1 mile crossing Union Blvd, 55 Carleton is located on the east side before Main Street. From Main Street, go north approximately 200 ft. on the right.
      For Sale Nearby
      No nearby homes are For Sale Nearby.
      Recently Sold
      No nearby homes have been Recently Sold.
      55 Carleton Avenue, East Islip, NY 11730, is a 0.98 acres, 42689 sqft. Office built in 1975. This property is currently available for sale and was listed on OneKey® MLS on 10-24-2025. The MLS# for this Office is MLS# 928396.
      Display of MLS Data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals.
      Copyright ©2026