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East Islip, NY

East Islip, NY Commercial Real Estate for Sale

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Islip, NY Bayshore, NY Brentwood, NY

Renovated Multi-Tenant Office Building

Updated: Feb 16

Renovated Multi-Tenant Office Building

128 Carleton Avenue, East Islip, NY 11730

$800,000

0.28 AC lot

Professional office building with 7 individual offices plus a conference room and kitchenette
Completely renovated in 2020, including HVAC, exterior siding, some windows, interiors, common areas, bathrooms, and conference room
100% occupied multi‑tenant configuration
Includes 2 renovated bathrooms and a modern kitchenette
Detached storage garage for storage or expanded use

Zoned GSD Office and Medical Site

Updated: Oct 24, 2025

Zoned GSD Office and Medical Site

55 Carleton Avenue, East Islip, NY 11730

$1,650,000

0.98 AC lot

0.98‑acre commercial property on Carleton Avenue, the main thoroughfare into East Islip
Zoned GSD for office, medical, or veterinary use
Expansion potential for additional space up to 11,000 SF or redevelopment up to 17,000 SF
Year built 1975 with brick, stucco, and fiberglass insulation construction
Central air cooling and forced‑air natural gas heating

ADA-Compliant Medical Office Building

ADA-Compliant Medical Office Building

3250 Sunrise Highway, East Islip, NY 11730

$699,999

0.31 AC lot

ADA-compliant medical office with multiple exam rooms, separate patient and staff entrances, and added storage in a full basement.

Turn Any Listing Into an Investment Snapshot Owner equity, real caprate, demand score for every listing. Go To Analytics Center

High-Visibility Commercial Property on Carleton Avenue

High-Visibility Commercial Property on Carleton Avenue

55 Carleton Ave, East Islip, NY 11730

$1,650,000

17,000 sqft · 0.98 AC lot

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

Based on your search, we've compiled 76 Potential Opportunities for your consideration. Besides 4 Active listings in East Islip, NY, we suggest exploring several alternatives: 4 properties in Nearby Cities, and similar 68 Off-Market properties to explore as potential leads

Opportunities in Nearby Cities

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

Medical Office For Sale

Medical Office For Sale

Bayshore, NY 11706

$119,000

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

Commercial Building on Union Boulevard

Commercial Building on Union Boulevard

Bayshore, NY 11706

Contact for pricing

2,671 sqft · 0.39 AC lot

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

Retail Space on Signalized Corner

Retail Space on Signalized Corner

1535 Montauk Hwy, Oakdale, NY

$1,500,000

3,500 sqft · 0.55 AC lot

Retail property with high traffic counts and excellent frontage.

Former Bank Branch with Drive-Thru

Former Bank Branch with Drive-Thru

1336 Montauk Hwy, Oakdale, NY

$1,250,000

3,314 sqft · 0.75 AC lot

Former bank branch with drive-thru and high visibility.

Off-Market Properties in East Islip, NY

Consider similar Off-Market properties in East Islip, NY. You may contact the owners directly to inquire about their potential intentions to sell. To help you make a strong first impression, we can assist by reaching out to these owners with compelling proposals created using our AI tool.

109 Carleton Ave

AUTO REPAIR, GARAGE

109 Carleton Ave, East Islip, NY 11730-1801

$800,000

Estimated value

0.73 AC lot

OFFICE BUILDING

1 Jackson St, East Islip, NY 11730

$1,150,000

Estimated value

0.34 AC lot

STORE/OFFICE (MIXED USE)

33 Main St, East Islip, NY 11730-2541

Value Estimation by Request

0.15 AC lot

80 Carleton Ave

OFFICE/RESIDENTIAL (MIXED USE)

80 Carleton Ave, East Islip, NY 11730-2110

Value Estimation by Request

0.22 AC lot

STORE/OFFICE (MIXED USE)

154 Main St, East Islip, NY 11730-2633

Value Estimation by Request

0.17 AC lot

168 Carleton Ave

BAR, TAVERN

168 Carleton Ave, East Islip, NY 11730-1814

Value Estimation by Request

0.40 AC lot

STORE/OFFICE (MIXED USE)

146 Main St, East Islip, NY 11730-2640

Value Estimation by Request

0.24 AC lot

OFFICE BUILDING

369 Main St, East Islip, NY 11730-2800

Value Estimation by Request

0.04 AC lot

132 Connetquot Ave

STORE/OFFICE (MIXED USE)

132 Connetquot Ave, East Islip, NY 11730-1418

Value Estimation by Request

0.36 AC lot

OFFICE/RESIDENTIAL (MIXED USE)

70-74 Main St, East Islip, NY 11730

$1,100,000

Estimated value

0.25 AC lot

OFFICE/RESIDENTIAL (MIXED USE)

62 Main St, East Islip, NY 11730-2322

$2,000,000

Estimated value

0.08 AC lot

OFFICE/RESIDENTIAL (MIXED USE)

64-66 Main St, East Islip, NY 11730

$2,000,000

Estimated value

0.15 AC lot

STORE/OFFICE (MIXED USE)

Montauk Hwy, East Islip, NY 11730

Value Estimation by Request

0.26 AC lot

158 Carleton Ave

VACANT COMMERCIAL LAND

158 Carleton Ave, East Islip, NY 11730-1814

Value Estimation by Request

0.17 AC lot

BULK STORAGE, TANKS

37 Wall St, East Islip, NY 11730-1716

$995,000

Estimated value

2.07 AC lot

LUMBERYARD, BUILDING MATERIALS

33 Wall St, East Islip, NY 11730-1716

$2,005,000

Estimated value

2.12 AC lot

OFFICE BUILDING

369 Main St, East Islip, NY 11730-2800

Value Estimation by Request

0.03 AC lot

STORE/OFFICE (MIXED USE)

214 Main St, East Islip, NY 11730-2711

$1,640,000

Estimated value

0.33 AC lot

120 Carleton Ave

AUTO REPAIR, GARAGE

120 Carleton Ave, East Islip, NY 11730-1804

Value Estimation by Request

0.55 AC lot

OFFICE/RESIDENTIAL (MIXED USE)

109 Main St, East Islip, NY 11730-2321

$2,930,000

Estimated value

0.15 AC lot

East Islip, NY Commercial Real Estate Market Trends and Statistics

Explore 72 commercial real estate for sale in East Islip, NY, showcased through 4 active listings on our real estate platform. These investment opportunities span a total of 17,000 square feet of properties for sale, with an estimated market value of $1,650,000.

Sale prices for business properties in East Islip, NY start at $1,650,000, averaging $1,650,000, and reaching up to $1,650,000 — 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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Demographics Overview

Population 14K

Population Growth (5Y) +3.7%

Median Household Income $146,190

College Educated 56.6%

High-Yield Neighborhoods for Investment

Identify East Islip submarkets with the highest inventory density on the market and evaluate the average listing prices of real estate assets

Neighborhood	Average Price
11730	$1.2M

Listings Trend

New vs delisted commercial listings in Suffolk County

New Delisted

Total CRE Inventory on Market (SF)

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