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    Islip, NY
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    Islip, NY Multifamily Properties for Sale

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    Brightwaters, NY West Islip, NY Bayshore, NY Deer Park, NY West Babylon, 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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    Turn a Listing Into an Investment Snapshot Cap Rate, Potential NOI, Demand score for every listing. Go To Analytics Center
    Based on your search, we've compiled 10 Potential Opportunities for your consideration. Besides 2 Active listings in 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.

    Legal Two-Unit Duplex on Corner Lot
    Legal Two-Unit Duplex on Corner Lot

    145 Calebs Path, Brentwood, NY 11717

    $750,000
    0.40 AC lot

    Legal two-unit duplex on a corner lot with outdoor space and private parking in Brentwood, NY.

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    Babylon Duplex with Private Driveways
    Babylon Duplex with Private Driveways

    7 Park Avenue, Babylon, NY 11702

    $739,000
    0.10 AC lot

    Well-maintained duplex offers two separate units with private entrances, in-unit laundry, and dedicated basement storage.

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    Renovated Three-Family Residential Building
    Renovated Three-Family Residential Building

    47 Bushwick Ave, Brentwood, NY 11717

    $1,388,000

    Renovated legal three-family property with updated kitchens and baths and ample parking on a large outdoor lot.

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    Mixed-Use Investment with Leased Retail
    Mixed-Use Investment with Leased Retail

    504 Fire Island Avenue, Babylon, NY 11702

    Contact for pricing

    Two first-floor retail spaces and two apartments above are leased through mid-2028, with additional garage and bulkhead income.

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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.

    Flatbush Development Property For Sale
    Flatbush Development Property For Sale

    14 E 32nd Street lot: 13, Brooklyn, NY 11226

    $1,249,000
    1,407 sqft 0.09 AC lot

    40 x 100 lot with R6, C1-2 zoning.

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    Detached Two-Family Residence
    Detached Two-Family Residence

    69 Martense Street, Brooklyn, NY 11226

    $1,888,888
    0.10 AC lot

    Detached two-family home with two 3-bedroom apartments and a semi-finished basement featuring a separate entrance.

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    Two-Family Home with Detached Garage
    Two-Family Home with Detached Garage

    39 Halsey Avenue, Southampton, NY 11968

    $2,300,000
    0.33 AC lot

    Vacant two-family residence on a 0.33-acre lot with a detached two-bay car garage and long driveway.

    View details
    Expansive Land Parcel in Holmes
    Expansive Land Parcel in Holmes

    545 Grape Hollow Road, Holmes, NY 12531

    $750,000
    2,480 sqft 75.32 AC lot

    75+ acre land parcel with garage near I-84.

    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 $550K

    Listings Trend

    New vs delisted commercial listings in Suffolk County

    New Delisted

    Total CRE Inventory on Market (SF)

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