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    Islip, NY
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    Islip, NY Multifamily Properties for Sale

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    Bayshore, NY West Islip, NY Brightwaters, NY West Babylon, NY Deer Park, NY Fort Ann, NY Brentwood, NY Wyandanch, NY
    Updated Co-op with Amenities
    Updated: Nov 27, 2025
    Updated Co-op with Amenities

    2399 UNION Blvd 5A, Islip, NY 11751

    $185,000
    Desirable Forest Green Community with saltwater pool, fully equipped gym, and clubhouse.
    Pet‑friendly with two included parking spaces.
    Updated first‑floor 1‑bedroom co‑op with gleaming hardwood floors.
    Spacious living room and large bedroom, each with built‑in/in‑wall A/C units.
    Ample storage with two double closets in the bedroom, a double closet in the hallway, and a linen closet.
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    Updated Co-op with Open Layout
    Updated: Nov 28, 2025
    Updated Co-op with Open Layout

    Islip Manor, NY 11751

    $244,000
    Updated, deluxe‑size co‑op with open concept layout.
    Resort‑style living with pool, clubhouse, and fitness room.
    Convenient location near shopping, dining, and transportation.
    Bright and airy living space.
    Seamless flow between dining area and living room.
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    See what stands out in Suffolk County

    We check every for-sale listing in the county against comparable properties across the country. Most price about where you would expect. A few are worth a second look.

    We check every listing here. A few are worth a second look.

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    Based on your search, we've compiled 6 Potential Opportunities for your consideration. Besides 2 Active listings in 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.

    Mixed-Use Building with Storefronts
    Mixed-Use Building with Storefronts

    51-53 West Montauk Highway, Lindenhurst, NY 11757

    Contact for pricing
    5,000 sqft

    Two first-floor storefronts and five upstairs apartments create a compact, live/work income setup in one property.

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    Legal 2-Family Duplex
    Legal 2-Family Duplex

    733 14th Street, West Babylon, NY 11704

    $799,999
    0.25 AC lot

    Separate gas and electric meters support independent utility billing for the two apartments.

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    Legal Two-Family Duplex
    Legal Two-Family Duplex

    22 Marilyn Court, West Babylon, NY 11704

    $749,999
    0.19 AC lot

    Updated two-unit residence with separate utility meters, private parking, and access to schools, shopping, and public transportation.

    View details
    Two-Family Duplex with Oversized Garage
    Two-Family Duplex with Oversized Garage

    7 Gary Street, Lindenhurst, NY 11757

    $699,000

    Attached apartment and separate entrances support flexible two-family living with substantial finished and storage areas.

    View details

    Islip, NY Multifamily Properties Market Trends and Statistics

    Explore 2 multifamily properties for sale in Islip, NY on our real estate platform.

    Sale prices for multifamily properties in Islip, NY start at $185,000, averaging $214,500, and reaching up to $244,000 — 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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    Top Commercial Asset Segments

    Commercial property segments ranked by active listings on the market

    Apartment buildings 2

    Demographics Overview

    Population 13K
    Population Growth (5Y) -9.7%
    Median Household Income $116,328
    College Educated 51.2%

    High-Yield Neighborhoods for Investment

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

    Neighborhood Average Price
    11751 $185K

    Listings Trend

    New vs delisted commercial listings in Suffolk County

    New Delisted

    Total CRE Inventory on Market (SF)

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