E Islip, NY Commercial real estate 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 7 Potential Opportunities for your consideration. Besides 3 Active listings in E Islip, NY, we suggest exploring several alternatives: 4 properties in Nearby Cities

Opportunities in Nearby Cities

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

$99,000

0.09 Acres

Commercial Land in Bay Shore

Commercial land with great exposure on a corner lot.

Bayshore, NY 11706

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Contact for pricing

2,671 SF

Commercial Building on Union Boulevard

2,671 SF commercial building on 0.39 acres in Bay Shore.

Bayshore, NY 11706

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$1,500,000

3,500 SF

Retail Space on Signalized Corner

Retail property with high traffic counts and excellent frontage.

1535 Montauk Hwy, Oakdale, NY

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$1,250,000

3,314 SF

Former Bank Branch with Drive-Thru

Former bank branch with drive-thru and high visibility.

1336 Montauk Hwy, Oakdale, NY

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E Islip, NY Commercial Real Estate Investment Opportunities Market Analysis

Explore 3 commercial real estate 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 business properties 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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