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    Nassau County, NY Multifamily Properties for Sale

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    212 properties
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    Duplex Property with Finished Basement
    Updated: Aug 14
    Duplex Property with Finished Basement

    1537 Madison Street, Elmont, NY 11003

    $879,000
    1,270 sqft 0.10 AC lot
    1,270 SF wood‑frame duplex property built in 1954
    0.1047‑acre lot with private driveway and detached garage
    Three bedrooms and three bathrooms
    Finished basement with laundry, recreation, and bonus space
    Rear deck, pool, and front patio
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    Historic Multifamily Estate
    Updated: Jun 28
    Historic Multifamily Estate

    Mill Neck, NY 11765

    $4,288,888
    8,264 sqft 0.67 AC lot
    8264‑square‑foot main residence with 7 bedrooms and 8 bathrooms
    Two additional guest homes; each is approximately 2300 SF
    Colonial architecture with hardwood floors, fireplaces, and central air
    Wraparound porch, deck, patio, terrace, and second‑floor balcony
    Water views of Oyster Bay Harbor
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    Mixed-Use Building with Garage
    Mixed-Use Building with Garage

    2453 Long Beach Rd, Oceanside, NY 11572

    $1,800,000
    2,258 sqft 0.10 AC lot

    Corner property combines restaurant, apartments, offices, and on-site parking.

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    Mixed-Use Building with Retail
    Mixed-Use Building with Retail

    272 Broadway, Bethpage, NY 11714

    $1,400,000
    4,517 sqft 0.21 AC lot

    Two renovated apartments, a ground-floor commercial unit, dedicated parking, and a detached garage support multiple occupancy types.

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    Renovated Two-Family Duplex
    Renovated Two-Family Duplex

    5 Linwood Road N, Port Washington, NY 11050

    $1,989,000
    0.11 AC lot

    Fully updated residential income property with hardwood floors, central air, in-unit laundry, and off-street parking.

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    Renovated Two-Family Duplex
    Renovated Two-Family Duplex

    7 Linwood Road N, Port Washington, NY 11050

    $1,949,000
    0.11 AC lot

    Legal two-family residence with finished basement storage, hardwood floors, central air, and off-street parking.

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    Updated Colonial Duplex
    Updated Colonial Duplex

    29 Elm Avenue, Hempstead, NY 11550

    $949,000
    0.23 AC lot

    Fully legal two-family property with separate entrances, utilities, substantial driveway parking, and updated interior and exterior systems.

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    Mixed-Use Building with Retail Space
    Mixed-Use Building with Retail Space

    322 Jericho Turnpike, Floral Park, NY 11001

    $1,100,000
    4,036 sqft 0.05 AC lot

    B-2 Business zoning combines a commercial storefront with two separately entered residential apartments.

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    Updated Two-Family Colonial
    Updated Two-Family Colonial

    53 Watts Place, Lynbrook, NY 11563

    $849,000
    0.11 AC lot

    Legal duplex with separate gas systems, a detached garage, basement storage, and outdoor living areas.

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    Updated Two-Family Duplex
    Updated Two-Family Duplex

    61 1st Avenue, East Rockaway, NY 11518

    $1,399,000
    0.17 AC lot

    A legal two-family residence pairs radiant heat with central air and multiple flexible recreation areas.

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    Mixed-Use Property with Warehouse
    Mixed-Use Property with Warehouse

    6-8 Chadwick Street, Glen Cove, NY 11542

    $4,500,000
    8,884 sqft 0.69 AC lot

    Five structures combine commercial space, residential units, secured yard area, and separate utility metering.

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    Two-Unit Duplex with Separate Entrances
    Two-Unit Duplex with Separate Entrances

    12 Beech Court, Glen Cove, NY 11542

    $779,000
    0.18 AC lot

    Distinct heating systems and electric meters serve the two residences.

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    Mixed-Use Property With Retail Storefront
    Mixed-Use Property With Retail Storefront

    2904 Lincoln Avenue, Oceanside, NY 11572

    $1,650,000
    0.34 AC lot

    Ground-floor retail space is paired with two apartments, a detached garage, and on-site parking for flexible occupancy options.

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    Mixed-Use Property with Renovated Offices
    Mixed-Use Property with Renovated Offices

    1168-1170 Port Washington Boulevard Unit: 1168-1170, Port Washington, NY 11050

    $1,700,000
    6,912 sqft

    The property combines retail frontage, office accommodations, and a separate two-family residence on one lot.

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    Two-Unit Duplex with Private Terrace
    Two-Unit Duplex with Private Terrace

    34 Meyer Avenue, Valley Stream, NY 11580

    $864,000
    0.10 AC lot

    Both residences have two bedrooms, separate living and dining rooms, and eat-in kitchens.

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    Legal Two-Family Duplex with Garage
    Legal Two-Family Duplex with Garage

    81 Franklin Street, Elmont, NY 11003

    $989,888
    0.11 AC lot

    Cape Cod duplex with separate living spaces, a finished basement, private parking, and public utilities.

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    7-Unit Brick Apartment Building
    7-Unit Brick Apartment Building

    11-15 Whitney Ave, Floral Park, NY 11001

    $1,150,000
    6,279 sqft 0.11 AC lot

    Three-story walk-up with private balconies, a full basement, garage parking, and tenant storage income.

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    Renovated Duplex with Balcony
    Renovated Duplex with Balcony

    101 Firwood Road, Port Washington, NY 11050

    $880,000
    0.10 AC lot

    Two-family property with gas heat, hardwood floors, separate utility meters, and public water and sewer.

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    Legal Three-Family Triplex
    Legal Three-Family Triplex

    443 Babylon Tpke, Freeport, NY 11520

    $909,900
    2,992 sqft 0.52 AC lot

    Legal three-family configuration with substantial outdoor space and flexible occupancy potential.

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

    550 E Harrison Street, Long Beach, NY 11561

    $1,850,000
    0.09 AC lot

    Each level has a kitchen and balcony, with a fenced backyard and private driveway.

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    Renovated Duplex With Detached Cottage
    Renovated Duplex With Detached Cottage

    77 Jefferson Avenue, Roslyn Heights, NY 11577

    $2,249,000
    3,593 sqft

    Includes a renovated primary residence and a separate cottage with private outdoor space.

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    Colonial Duplex Property
    Colonial Duplex Property

    3588 Bertha Drive, Baldwin, NY 11510

    $1,075,000
    0.24 AC lot

    Frame construction with an eat-in kitchen, first-floor bedroom, porch, deck, and attached one-car garage.

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    Renovated Duplex with Pool
    Renovated Duplex with Pool

    193 Frederick Ave, South Floral Park, NY 11001

    $1,290,000
    2,785 sqft 0.17 AC lot

    Legal two-family duplex with updated interiors, separate floor layouts, an in-ground pool, and a two-car garage.

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    Two-Family Duplex with Large Yard
    Two-Family Duplex with Large Yard

    684 Newton Avenue, Uniondale, NY 11553

    $658,000
    0.12 AC lot

    Two-family property with separate living arrangements, original architectural details, and an expansive paved driveway.

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    Nassau County, NY Multifamily Properties Market Trends and Statistics

    Explore 212 multifamily properties for sale in Nassau County, NY, showcased through 212 active listings on our real estate platform. These investment opportunities span a total of 183,637 square feet of properties for sale, with an estimated market value of $316,757,777.

    Sale prices for multifamily properties in Nassau County, NY start at $158,000, averaging $1,560,383, and reaching up to $18,000,000 — 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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    Featured Nassau County Real Estate Agencies

    Realmo connects you with licensed Nassau County CRE brokers providing property specifications, local market pricing, and commercial transaction underwriting support.

    Charles Rutenberg Realty, Inc.
    255 Executive Drive, Suite 104 Hicksville, NY 11803
    Phone: 15165757500
    www.crrli.com
    Laffey Real Estate
    55 Northern Blvd., East Hills, NY 11548
    Phone: 18882896902
    www.laffey.com
    Laffey International Realt Estate
    193 Hillside Avenue Williston Park, NY 11596
    Phone: 18007741462
    www.bhhslaffey.com
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