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    East Islip, NY

    East Islip, NY Commercial Real Estate for Sale

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    Islip, NY Islip Terrace, NY Bayshore, NY Brentwood, NY Oakdale, NY Central Islip, NY Brightwaters, NY Bohemia, NY
    10 properties
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    Zoned GSD Office and Medical Site
    Updated: Oct 14, 2025
    Zoned GSD Office and Medical Site

    55 Carleton Ave, East Islip, NY 11730

    $1,650,000
    6,100 sqft 0.98 AC lot
    0.98‑acre commercial site on Carleton Avenue (main thoroughfare into East Islip) with GSD zoning for office, medical, or veterinary use
    Expansion potential for additional space up to 11,000 sq. ft., or redevelop the site for a new building up to 17,000 sq. ft.
    18 parking spaces available for customers and staff
    Central Air cooling and heating listed as "3"
    Easy access from Sunrise Hwy and Southern State Parkway
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    This listing looks promising.

    Here's a quick look at some key insights for

    55 Carleton Ave, East Islip, NY 11730

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    • Est. Cap Rate

      6.4%
      Above avg (5.9%)

    • Est. NOI

      $105K
      Annual

    • Price @ 7% Cap

      $1.5M
      Suggested
    View Property Analytics
    Medical Office with Basement
    Updated: Apr 29
    Medical Office with Basement

    3250 Sunrise Highway, East Islip, NY 11730

    $699,999
    0.31 AC lot
    Medical office layout with three private exam rooms, reception, waiting, lab, and physician office areas
    Full basement with stairwell access for storage, expansion, or operational use
    0.31‑acre property built in 1972
    Located on Sunrise Highway in East Islip
    ADA‑compliant features include an accessible ramp, designated handicap parking, and handicap‑accessible bathroom
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    Multi-Tenant Office Building with 7 Offices
    Multi-Tenant Office Building with 7 Offices

    128 Carleton Avenue, East Islip, NY 11730

    $800,000
    0.28 AC lot

    Renovated multi-tenant office building with seven private offices, conference room, and detached storage garage in GMT zoning.

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    Office Condominium with Private Offices
    Office Condominium with Private Offices

    369 E Main Street, East Islip, NY 11730

    $319,000
    0.02 AC lot

    Configured for professional use with reception, meeting, private office, storage, and restroom areas.

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    Turn a Listing Into an Investment Snapshot Cap Rate, Potential NOI, Demand score for every listing. Go To Analytics Center
    Office Unit With Private Offices
    Office Unit With Private Offices

    369 E Main Street, East Islip, NY 11730

    $319,000
    1,000 sqft

    Approximately 1,000 square feet with reception, conference, storage, and dedicated restroom areas in a professional condominium complex.

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    Office Building with Expansion Potential
    Office Building with Expansion Potential

    55 Carleton Avenue, East Islip, NY 11730

    $1,650,000
    0.98 AC lot

    Zoned GSD on a 0.98-acre site with HVAC and natural gas heat, positioned for office, medical, or veterinary use.

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    Medical Office with Basement
    Medical Office with Basement

    3250 Sunrise Highway, East Islip, NY 11730

    $699,999
    0.31 AC lot

    Clinical layout includes reception, waiting areas, exam rooms, and dedicated administrative workstations.

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    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.

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    Renovated Multi-Tenant Office Building
    Renovated Multi-Tenant Office Building

    128 Carleton Ave, East Islip, NY 11730

    $800,000

    Renovated office building with seven private offices, conference room, kitchenette, and two bathrooms plus detached storage garage.

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    ADA-Compliant Medical Office Facility
    ADA-Compliant Medical Office Facility

    3250 Sunrise Highway, East Islip, NY 11730

    $699,999

    Turnkey medical office with ADA access, multiple waiting rooms, private exam rooms, and dedicated staff and patient entrances.

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    Based on your search, we've compiled 76 Potential Opportunities for your consideration. Besides 10 Active listings in East Islip, NY, we suggest exploring several alternatives: 4 properties in Nearby Cities, and similar 62 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.

    Second-Generation Restaurant Property
    Second-Generation Restaurant Property

    85 Carleton Ave, Islip Terrace, NY 11752

    Contact for pricing
    3,000 sqft

    For sale restaurant and deli property with equipment included, plus potential additional income from a studio apartment and garage.

    View details
    Specialty Commercial Property
    Specialty Commercial Property

    287 Amityville St, Islip Terrace, NY 11752

    $1,475,000

    For-sale specialty commercial property with a car-dependent walkability profile.

    View details
    Single-Tenant Industrial Facility
    Single-Tenant Industrial Facility

    384 Moffitt Blvd, Islip, NY 11751

    Contact for pricing
    4,880 sqft 0.20 AC lot

    Single-tenant industrial building on a fenced lot with drive-in doors, office improvements, and 14-foot ceilings.

    View details
    Renovated Mixed-Use Property Near LIRR
    Renovated Mixed-Use Property Near LIRR

    390 Moffitt Blvd, Islip, NY 11751

    Contact for pricing
    6,900 sqft

    Mixed-use property renovated in 2025, near Islip LIRR station.

    View details

    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
    View details
    1 Jackson St
    OFFICE BUILDING

    1 Jackson St, East Islip, NY 11730

    $1,150,000
    Estimated value
    0.34 AC lot
    View details
    33 Main St
    STORE/OFFICE (MIXED USE)

    33 Main St, East Islip, NY 11730-2541

    $360,000
    Estimated value
    0.15 AC lot
    View details
    80 Carleton Ave
    OFFICE/RESIDENTIAL (MIXED USE)

    80 Carleton Ave, East Islip, NY 11730-2110

    $240,000
    Estimated value
    0.22 AC lot
    View details
    154 Main St
    STORE/OFFICE (MIXED USE)

    154 Main St, East Islip, NY 11730-2633

    $450,000
    Estimated value
    0.17 AC lot
    View details
    168 Carleton Ave
    BAR, TAVERN

    168 Carleton Ave, East Islip, NY 11730-1814

    $500,000
    Estimated value
    0.40 AC lot
    View details
    146 Main St
    STORE/OFFICE (MIXED USE)

    146 Main St, East Islip, NY 11730-2640

    $400,000
    Estimated value
    0.24 AC lot
    View details
    369 Main St
    OFFICE BUILDING

    369 Main St, East Islip, NY 11730-2800

    $475,000
    Estimated value
    0.04 AC lot
    View details
    132 Connetquot Ave
    STORE/OFFICE (MIXED USE)

    132 Connetquot Ave, East Islip, NY 11730-1418

    $255,000
    Estimated value
    0.36 AC lot
    View details
    70-74 Main St
    OFFICE/RESIDENTIAL (MIXED USE)

    70-74 Main St, East Islip, NY 11730

    $1,100,000
    Estimated value
    0.25 AC lot
    View details
    62 Main St
    OFFICE/RESIDENTIAL (MIXED USE)

    62 Main St, East Islip, NY 11730-2322

    $2,000,000
    Estimated value
    0.08 AC lot
    View details
    64-66 Main St
    OFFICE/RESIDENTIAL (MIXED USE)

    64-66 Main St, East Islip, NY 11730

    $2,000,000
    Estimated value
    0.15 AC lot
    View details
    Montauk Hwy
    STORE/OFFICE (MIXED USE)

    Montauk Hwy, East Islip, NY 11730

    $250,000
    Estimated value
    0.26 AC lot
    View details
    158 Carleton Ave
    VACANT COMMERCIAL LAND

    158 Carleton Ave, East Islip, NY 11730-1814

    $180,000
    Estimated value
    0.17 AC lot
    View details

    East Islip, NY Commercial Real Estate Market Trends and Statistics

    Explore 72 commercial real estate for sale in East Islip, NY, showcased through 10 active listings on our real estate platform. These investment opportunities span a total of 24,100 square feet of properties for sale, with an estimated market value of $9,287,997.

    Sale prices for business properties in East Islip, NY start at $319,000, averaging $928,799, 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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