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    Nassau County, NY Duplexes for Sale

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    Duplex with Private Deck
    Duplex with Private Deck

    174 S Long Beach Road, Rockville Centre, NY 11570

    $1,150,000
    0.13 AC lot

    Two three-bedroom residences include flexible living areas, finished lower-level space, and separate parking accommodations.

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    Colonial Duplex with Private Balconies
    Colonial Duplex with Private Balconies

    623 W Park Avenue, Long Beach, NY 11561

    $1,075,000
    0.09 AC lot

    Two residential units offer separate balconies, driveway parking, and an attached garage.

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    Duplex with Detached Garage
    Duplex with Detached Garage

    1090 Webber Avenue, South Hempstead, NY 11550

    $749,000
    0.11 AC lot

    Two separate residences share a fenced yard, with a private driveway and off-street garage parking.

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    Renovated Two-Unit Duplex
    Renovated Two-Unit Duplex

    83 Althouse Avenue, East Rockaway, NY 11518

    $899,000
    0.11 AC lot

    Legal two-family property with separate kitchens, private parking, and an above-ground pool.

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

    22 Locust Avenue, Glen Head, NY 11545

    $935,000
    0.15 AC lot

    Legal two-family residence with separate entrances, fenced yard, and updated kitchens and baths.

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    Legal Two-Family Duplex
    Legal Two-Family Duplex

    485 Peninsula Boulevard, Lynbrook, NY 11563

    $875,000
    0.11 AC lot

    Separate entrances, a detached garage, and flexible lower-level space support owner-occupant or rental use.

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    Legal Two-Family Duplex
    Legal Two-Family Duplex

    68 Shipherd Avenue, Lynbrook, NY 11563

    $799,800
    0.11 AC lot

    Well-maintained duplex with updated kitchens and baths, a finished basement, detached garage, and private outdoor space.

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    Duplex with Finished Basement
    Duplex with Finished Basement

    325 W Valley Stream Boulevard, Valley Stream, NY 11580

    $869,000
    0.14 AC lot

    Legal two-family home with separate apartments, a finished basement, and convenient access to the Long Island Rail Road.

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    Duplex with Finished Basement
    Duplex with Finished Basement

    22 E Maple Street, Valley Stream, NY 11580

    $799,000
    0.09 AC lot

    Both residential floors have a kitchen, living room, two bedrooms, and a full bathroom.

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    Duplex with Renovated Two-Car Garage
    Duplex with Renovated Two-Car Garage

    7 Brown Street, Sea Cliff, NY 11579

    $799,900
    0.11 AC lot

    Separate living areas on two floors each have a kitchen and full bath.

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    Renovated Two-Family Duplex
    Renovated Two-Family Duplex

    5 Linwood Road N, Port Washington, NY 11050

    $1,989,000

    Two-level residential income property with updated interiors, finished basement storage, and in-unit laundry.

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

    173 Cleveland Avenue, Mineola, NY 11501

    $930,000
    0.11 AC lot

    Legal two-family Colonial with separate living spaces, basement storage, private driveway, and backyard access.

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    Two-Unit Colonial Duplex
    Two-Unit Colonial Duplex

    130 E Fairview Avenue, Valley Stream, NY 11580

    $935,000
    0.09 AC lot

    Two residences offer flexible layouts, eat-in kitchens, full baths, and shared basement utility and storage areas.

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    Two-Unit Colonial Duplex
    Two-Unit Colonial Duplex

    1 Beverly Road, Glen Cove, NY 11542

    $799,000
    0.20 AC lot

    Two living units offer flexible occupancy, with ground-level access and dedicated parking areas for each household.

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

    34 Remsen Avenue, Valley Stream, NY 11580

    $999,999
    0.23 AC lot

    Separate kitchens, utility meters, and two-zone heating support the property’s multi-unit configuration.

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    Renovated Duplex with Finished Attic
    Renovated Duplex with Finished Attic

    2861 Tilrose Avenue, Oceanside, NY 11572

    $679,000

    Four-bedroom layout with a full-height basement and off-street parking.

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    Two-Family Colonial with Fenced Yard
    Two-Family Colonial with Fenced Yard

    1551 Sweetman Avenue, Elmont, NY 11003

    $1,200,000
    0.18 AC lot

    Corner property offers six rooms on each level, a usable fenced yard, and driveway parking.

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    2-Unit Duplex with Fenced Yard
    2-Unit Duplex with Fenced Yard

    29 Julian Place, Island Park, NY 11558

    $770,000
    0.10 AC lot

    Legal multifamily property with independent utilities, private parking, and a fenced outdoor area.

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    Duplex with Detached Garage
    Duplex with Detached Garage

    59 Hampton Road, Lynbrook, NY 11563

    $799,999
    0.13 AC lot

    Two residential units offer separate kitchens, laundry areas, and private access, with additional storage on the walk-up third floor.

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    Legal Two-Family Duplex
    Legal Two-Family Duplex

    352 W Valley Stream Boulevard, Valley Stream, NY 11580

    $799,000
    0.09 AC lot

    Two residential units provide flexible layouts with basement and attic access, plus nearby train and public transportation.

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    Vacant Two-Level Duplex
    Vacant Two-Level Duplex

    7 Roberts Lane, Cedarhurst, NY 11516

    $1,350,000

    Two separate residences are delivered vacant, allowing immediate control of occupancy and future improvements.

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    Corner Duplex with Finished Basement
    Corner Duplex with Finished Basement

    32 Edgewood Road, Port Washington, NY 11050

    $1,019,000

    Two-level residential income property with gas utilities, private outdoor space, and parking for two vehicles.

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    Renovated Two-Family Duplex
    Renovated Two-Family Duplex

    3914 Waverly Avenue, Seaford, NY 11783

    $1,200,000
    0.13 AC lot

    Business zoning, separate entrances, and a detached garage complement the updated residential configuration.

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    South-Facing Duplex with Balcony
    South-Facing Duplex with Balcony

    48 Orchard Beach Boulevard, Port Washington, NY 11050

    $1,450,000

    Four-bedroom residence with two driveways, solar panels, EV charging, and shared basement storage.

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