E Islip, NY Office Spaces for sale

$800,000

0.28 Acres

Renovated Multi-Tenant Office Building

128 Carleton Avenue, East Islip, NY 11730

Professional office building with strong rental potential in East Islip.

100% Occupied Multi‑Tenant Building in GST Zone
Completely Renovated in 2020: HVAC, Exterior, Interiors
Features 7 Private Offices + Spacious Conference Room
Detached Garage for Storage or Expanded Use
Modern Kitchenette and 2 Renovated Bathrooms

Updated: Feb 16

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High-Visibility Commercial Property on Carleton Avenue

$1,650,000

0.98 Acres

High-Visibility Commercial Property on Carleton Avenue

55 Carleton Avenue, East Islip, NY 11730

0.98-acre commercial property suited for office, medical, or veterinary use.

High‑visibility 0.98‑acre commercial property on Carleton Avenue.
Zoned GSD, ideally suited for office, medical, or veterinary use.
Opportunity for expansion of up to 11,000 sq. ft. or redevelopment up to 17,000 sq. ft.
Prime location in East Islip with strong commercial activity and desirable demographics.
Easy access to Sunrise Hwy and Southern State Parkway.

Updated: Oct 24, 2025

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$7,500,000

23,518 SF

East Islip Medical/Fitness Property

23,518 SF building on 1.2 acres, high-traffic location.

269 E Main St, E Islip, NY

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Based on your search, we've compiled 11 Potential Opportunities for your consideration. Besides 3 Active listings in E Islip, NY, we suggest exploring several alternatives: 4 properties in Nearby Cities, plus 4 Land Listings that present a potential for development.

Opportunities in Nearby Cities

Here are 4 Similar properties we found in Nearby Locations for your consideration.

Multi-Tenant Building Near Veterans Highway

$1,500,000

10,000 SF

Multi-Tenant Building Near Veterans Highway

10,000 SF multi-tenant building with established medical and administrative tenants.

3330 Veterans Memorial Hwy, Bohemia, NY 11716

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$199,000

Medical Office For Sale

Medical office featuring exam rooms, office, reception, and waiting areas.

Bayshore, NY 11706

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Contact for pricing

10,000 SF

Renovated Industrial and Office Units

Immaculate, renovated 10,000 SF building with office and industrial units.

30 Floyds Run, Bohemia, NY

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$3,499,000

Bay Shore Investment Property Portfolio

Fully occupied commercial properties with triple-net leases in Bay Shore.

Bayshore, NY 11706

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Potential Development Sites for Consideration

Can't find the perfect fit? These Land listings present an alternative path: the potential to develop a property for your specific goals.

Important: These AI-suggestions are a starting point, not a guarantee of permitted use. All zoning, permitting, and land use information must be independently verified by you with the appropriate local authorities before making any commitments.

$205,000

5,675 SF

Commercial Land in Amityville, NY

Commercial bungalow suitable for office building development in Amityville.

242 Albany Avenue, Amityville, NY 11701

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$1,999,990

0.95 Acres

Amityville Land For Sale

0.95 acre commercial land in Amityville, NY.

770 N Broadway, Amityville, NY 11701

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$3,250,000

4.10 Acres

Prime Land in Port Jefferson

4.1 acre commercial land in revitalizing Port Jefferson Station.

527/529 Route 112, Port Jefferson Station, NY 11776

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$699,000

0.50 Acres

Commercial Land Near Montauk Highway

Vacant commercial lot near Montauk Hwy, Shirley, NY.

V/L Versa Place, Shirley, NY 11967

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E Islip, NY Office Spaces Investment Opportunities Market Analysis

Explore 3 office spaces for sale in E Islip, NY, showcased through 3 active listings on our real estate platform. These investment opportunities span a total of 23,518 square feet of properties for sale, with an estimated market value of $7,500,000.

Sale prices for office spaces in E Islip, NY start at $7,500,000, averaging $7,500,000, and reaching up to $7,500,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

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