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    Nassau County, NY Duplexes for Sale

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    Duplex with Detached Garage
    Duplex with Detached Garage

    19 Gibson Boulevard, Valley Stream, NY 11581

    $1,198,000
    0.10 AC lot

    Legal two-family residence with separate utilities, finished basement, private driveway, and flexible bedroom layouts.

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    Renovated Two-Family Duplex
    Renovated Two-Family Duplex

    101 Firwood Road, Port Washington, NY 11050

    $880,000

    Legal income property with separate gas and electric meters, on-site parking, and access to public transit.

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    Duplex Property with Private Pool
    Duplex Property with Private Pool

    140 Baltimore Avenue, Massapequa, NY 11758

    $1,299,988
    0.18 AC lot

    Flexible multi-generational layout includes a separate apartment, ensuite bedrooms, and a private gunite pool.

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    Two-Family Duplex with Backyard
    Two-Family Duplex with Backyard

    440 E Park Avenue, Long Beach, NY 11561

    $859,000
    0.09 AC lot

    A four-bedroom layout includes a first-floor bedroom and driveway parking.

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    Two-Family Duplex Property
    Two-Family Duplex Property

    2681 Sheldon Place, Oceanside, NY 11572

    $995,000
    0.19 AC lot

    Two residential units with private driveway, central air conditioning, hardwood floors, basement storage, and a landscaped rear yard.

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    Fully Bricked Duplex with Pool
    Fully Bricked Duplex with Pool

    45 Concord St, Lynbrook, NY 11563

    $1,300,000

    Separate kitchens, laundry areas, and electric meters support a flexible two-level residential configuration.

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    Two-Unit Cottage with Storage
    Two-Unit Cottage with Storage

    40 Rockville Avenue, Rockville Centre, NY 11570

    $850,000
    0.09 AC lot

    Well-maintained duplex with separate utilities, flexible attic space, basement storage, and a landscaped rear yard.

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    Legal 2-Family Duplex
    Legal 2-Family Duplex

    2477 Margaret Street, Bellmore, NY 11710

    $979,000
    0.14 AC lot

    Two residential units offer distinct layouts, with storage, garage parking, and a fenced lot.

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    Legal 2-Family Duplex
    Legal 2-Family Duplex

    107 W Centennial Avenue, Roosevelt, NY 11575

    $919,000
    0.16 AC lot

    Two residential units provide separate entrances, central air conditioning, and stainless steel appliances.

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    Two-Family Duplex with Backyard
    Two-Family Duplex with Backyard

    440 E Park Ave, Long Beach, NY 11561

    $859,000

    1954-built residential income property with flexible two-unit configuration and outdoor space.

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    Duplex with Detached Garage
    Duplex with Detached Garage

    139 N 11th Street, New Hyde Park, NY 11040

    $849,000

    Legal two-family residence with separate living areas, a private yard, basement access, and finished loft space.

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    Corner Two-Family Development Parcel
    Corner Two-Family Development Parcel

    78 Maple St, Roslyn Heights, NY 11577

    $1,495,000

    Oversized corner parcel with an existing legal two-family home and potential for two buildable lots.

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    Legal Duplex with Detached Garage
    Legal Duplex with Detached Garage

    1118 W Broadway, Hewlett, NY 11557

    $899,999
    0.19 AC lot

    Two-unit Colonial with separate electric meters, private driveway, basement space, and a detached garage.

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    Renovated Two-Family Colonial
    Renovated Two-Family Colonial

    149 W Market Street, Long Beach, NY 11561

    $950,000
    0.09 AC lot

    Updated duplex with separate living arrangements, a private balcony, garage parking, and a partially finished basement.

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

    37 Acorn Place, Lynbrook, NY 11563

    $975,000
    0.16 AC lot

    Separate apartments offer distinct first- and second-floor layouts, with driveway parking and a full basement.

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    Duplex with Walkout Basement
    Duplex with Walkout Basement

    245 Plainfield Avenue, Floral Park, NY 11001

    $875,000
    0.09 AC lot

    Two residential units offer separate kitchens, full baths, and access from a welcoming front porch.

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    Updated Duplex with Detached Garage
    Updated Duplex with Detached Garage

    261 Rutland Road, Freeport, NY 11520

    $749,000
    0.17 AC lot

    Vacant duplex with an updated lower residence, separate entrances, and flexible owner-occupant or rental use.

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    Colonial Duplex with Fenced Yard
    Colonial Duplex with Fenced Yard

    32 Longfellow Avenue, Westbury, NY 11590

    $1,169,888
    0.28 AC lot

    Well-maintained duplex with flexible living areas, hardwood flooring, central air, and a private driveway.

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    Mixed-Use Retail with Apartment
    Mixed-Use Retail with Apartment

    626 Merrick Rd, Lynbrook, NY 11563

    $1,249,000

    Mixed-use building with a storefront below and two upgraded 3-bedroom apartment units above.

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    Two-Family Duplex with Full Basement
    Two-Family Duplex with Full Basement

    124 Quebec Road, Island Park, NY 11558

    $835,000
    0.09 AC lot

    Two apartments offer distinct bedroom layouts, dining areas, bathrooms, driveway parking, and access to a rear yard.

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    Cape-Style Duplex Property
    Cape-Style Duplex Property

    140 Arlington Avenue, Valley Stream, NY 11580

    $684,900
    0.09 AC lot

    Expanded residence with hardwood flooring, first-floor bedroom and bath, formal dining, eat-in kitchen, and attached garage.

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    Renovated Duplex with Pool
    Renovated Duplex with Pool

    29 Cambridge St, Valley Stream, NY 11581

    $949,000

    Renovated two-family property with a finished basement, detached garage, and private swimming pool.

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    Mixed-Use Property in Baldwin
    Mixed-Use Property in Baldwin

    2074 Grand Ave, Baldwin, NY 11510

    $825,000

    Mixed-use property with residential and retail income potential.

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    Park-Backed Duplex
    Park-Backed Duplex

    30 Norfolk Drive E, Elmont, NY 11003

    $999,999
    0.19 AC lot

    Legal two-family home with a finished basement and flexible interior arrangement.

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