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55 Carleton Avenue, East Islip, NY 11730

Suffolk County

Key Facts

6,100Sq Ft
1975Year Built
0.98Lot (acres)
1Stories

Description

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.

Property Information

Property Type

Commercial Sale

Sub-Type

Office

Year Built

1975

Stories

1

Living Area

6,100 sq ft

Lot Size

0.98 acres

Parking Spaces

18

Days on Market

199

MLS® Listing#

928396

Property Features

Appliances

None

Cooling

Central Air

Heating

Forced AirNatural Gas

Flooring

Combination

Basement

Unfinished

Fencing

Chain Link

Construction

BrickStucco

Utilities

Natural Gas AvailableCable AvailableCable ConnectedElectricity ConnectedNatural Gas ConnectedPhone ConnectedSewer ConnectedWater Connected

Sewer

Public Sewer

Water Source

Public

Financial Details

Annual Taxes

$29,360

Assessed Value

$89,500

Parcel Number

0500-346-00-03-00-073-000

Directions

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.

Affordability Calculator

$330,000

Estimated monthly payment

$8,782/mo

Principal $1,320,000 · Est. interest $1,841,517 over 30 yrs

Neighborhood Market Statistics

How this home compares to active listings in East Islip, NY

$878,022
Median Listing Price
52
Median Days on Market
1,837
Median Sq Ft
$491
Median Price / Sq Ft
557
Active Listings
  • This home’s price is 88% above the area median.
  • Its price per sq ft is 45% below the area median.

Market statistics compiled from active EXIT Realty® and MLS listings in East Islip, NY.

Location

Map showing the location of 55 Carleton Avenue, East Islip, NY 11730

Points of Interest in East Islip, NY

Showing the East Islip area map.

Nearby Schools

  • A Bright Child Learning Center

    School · 0.3 mi away

  • St. Mary School

    School · 0.4 mi away

  • John F Kennedy Elementary School

    Elementary · 0.7 mi away

  • East Islip Homeschool Requirements

    School · 1.1 mi away

  • Wing Elementary School

    Elementary · 1.1 mi away

  • Islip Terrace High School

    Secondary · 1.2 mi away

  • East Islip Middle School

    Secondary · 1.2 mi away

  • Timber Point Elementary School

    Elementary · 1.2 mi away

  • Ruth C Kinney Elementary School

    Elementary · 1.3 mi away

  • Maud S. Sherwood Elementary School

    Elementary · 1.6 mi away

  • Islip High School

    Secondary · 1.6 mi away

  • Islip School District

    School · 1.6 mi away

  • Islip Middle School

    Secondary · 1.7 mi away

  • Commack Road Elementary School

    Elementary · 1.8 mi away

  • Connetquot Elementary School

    Elementary · 1.8 mi away

  • Idle Hour Elementary School

    Elementary · 2.0 mi away

  • Connetquot River

    School · 2.3 mi away

  • Loretta Park Elementary School

    Elementary · 2.7 mi away

  • Brook Avenue Elementary School

    Elementary · 2.9 mi away

  • Laurel Park Elementary School

    Elementary · 2.9 mi away

Commute Calculator

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Nearby Homes

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Similar Home Values

Comparable nearby listings and their asking prices.

Moving Cost Estimate

EXIT Agents in East Islip

Listing Courtesy: Marylou Swan Realty Corp - 6312895550

Presented by: Joseph E. Donaghy

The data relating to real estate for sale on this website comes in part from the Internet Data exchange of OneKey MLS. IDX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information deemed reliable but not guaranteed. Copyright ©2026 OneKey MLS. All Rights Reserved
Fair Housing Notice

The data relating to real estate for sale on this web site comes in part from the Internet Data Exchange (IDX) program of one or more Multiple Listing Services (MLS). Listing information is deemed reliable but is not guaranteed accurate. Copyright © EXIT Realty® and respective MLS providers.

Data provided by LIBOR. MLS® Listing#928396. © 2026EXIT Realty®. All rights reserved.