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    Nassau County, NY Duplexes for Sale

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    Brick Duplex with Finished Basement
    Brick Duplex with Finished Basement

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

    $1,689,000
    0.14 AC lot

    Two-unit residence with flexible living areas, outdoor entertaining space, and a separate apartment layout.

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    Cape Cod Duplex
    Cape Cod Duplex

    330 Baldwin Road, Hempstead, NY 11550

    $799,000
    0.17 AC lot

    Frame construction with hardwood flooring, a first-floor bedroom, garage, and driveway.

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    Renovated Two-Unit Duplex
    Renovated Two-Unit Duplex

    142 Green Street, Valley Stream, NY 11580

    $1,085,000
    0.11 AC lot

    Attached two-family home with updated kitchens, separate living spaces, and convenient access to shopping, parks, and transportation.

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    Ranch-Style Duplex Property
    Ranch-Style Duplex Property

    19 North Lane, Glen Cove, NY 11542

    $850,000
    0.21 AC lot

    Seven-bedroom layout with a walk-out lower level and two-family lot designation, subject to applicable approvals.

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    Two-Family Home with Pool
    Two-Family Home with Pool

    262-08 86th Avenue, Floral Park, NY 11001

    $1,150,000
    0.09 AC lot

    A separate upper-level residence includes its own kitchen, bedroom, bathroom, and living room.

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    Two-Family Home With Detached Garage
    Two-Family Home With Detached Garage

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

    $849,000
    0.09 AC lot

    Legal residential income property with separate living areas, a private yard, and a flexible two-level layout.

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    Two-Family Home with Detached Cottage
    Two-Family Home with Detached Cottage

    77 Jefferson Avenue, Roslyn Heights, NY 11577

    $2,249,000
    0.03 AC lot

    A separate two-bedroom residence includes its own kitchen, living area, and private garden setting.

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    2-Unit Duplex with Garage
    2-Unit Duplex with Garage

    5 Franklin Avenue, Glen Cove, NY 11542

    $1,089,000
    2,295 sqft

    Separate entrances, kitchens, and laundry facilities provide independent setups for both residences.

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    Two-Unit Duplex with Ocean Views
    Two-Unit Duplex with Ocean Views

    622 W Penn Street, Long Beach, NY 11561

    $2,500,000
    0.14 AC lot

    Two townhouse-style residences are planned with smart-home features, central air conditioning, and private garage parking.

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    Two-Unit Colonial Duplex
    Two-Unit Colonial Duplex

    70 Rockaway Parkway, Valley Stream, NY 11580

    $869,000
    0.09 AC lot

    Separate residences are complemented by a finished attic and a basement with its own entrance.

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    Two-Unit Duplex with Garage
    Two-Unit Duplex with Garage

    141 Elmwood ST, Valley Stream, NY 11581

    $699,990
    1 sqft

    Separate apartments include a two-bedroom unit above a one-bedroom unit.

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    Two-Unit Duplex with Garage
    Two-Unit Duplex with Garage

    25 Webb Avenue, Hempstead, NY 11550

    $699,999
    0.09 AC lot

    Two residential units include a full basement, detached garage, and private driveway.

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    Contemporary Beach-Access Duplex
    Contemporary Beach-Access Duplex

    48 Orchard Beach Boulevard, Port Washington, NY 11050

    $1,450,000
    0.11 AC lot

    Four-bedroom layout with solar panels, EV charging, and driveway parking.

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    Duplex with Pool
    Duplex with Pool

    58 Garfield Pl, Hempstead, NY 11550

    $1,099,999
    0.20 AC lot

    Open-concept interiors and updated bathrooms complement the two-family layout.

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    Duplex with Finished Basement
    Duplex with Finished Basement

    996 Merillon Avenue, Westbury, NY 11590

    $786,000
    0.11 AC lot

    Two independent living areas each include a kitchen, two bedrooms, and a full bathroom.

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    Legal Two-Family Duplex
    Legal Two-Family Duplex

    20 E Pine Street, Long Beach, NY 11561

    $899,999
    0.11 AC lot

    Occupied units, a two-car garage, basement bonus space, and a rear deck support the property’s residential income use.

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    Duplex Home With Two-Car Garage
    Duplex Home With Two-Car Garage

    119 Parma Rd, Island Park, NY 11558

    $999,000
    0.14 AC lot

    Two distinct residences offer flexible occupancy, rental, or extended-living arrangements with shared exterior amenities.

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    Renovated Two-Family Duplex
    Renovated Two-Family Duplex

    25 N 12th Street, New Hyde Park, NY 11040

    $968,000
    0.09 AC lot

    Updated residential income property with garage parking, private outdoor space, and flexible owner-occupancy or rental use.

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    Two-Unit Duplex Property
    Two-Unit Duplex Property

    7 Sands Point Rd, Port Washington, NY 11050

    $849,000
    0.09 AC lot

    Two separate residential units with private entrances, individual heating systems, and shared outdoor space.

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    Duplex with Garage
    Duplex with Garage

    36 E Fulton Street, Long Beach, NY 11561

    $914,999
    0.09 AC lot

    A full basement with its own entrance complements the two-level bedroom layout.

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    Two-Unit Home with Detached Garage
    Two-Unit Home with Detached Garage

    2477 Margaret St, Bellmore, NY 11710

    $979,000
    2,339 sqft 0.14 AC lot

    Legal duplex with separate living arrangements, storage, fenced grounds, and substantial off-street parking.

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    Two-Unit Cottage Duplex
    Two-Unit Cottage Duplex

    27 & 31 Kennedy Road, East Hills, NY 11577

    $1,200,000
    0.09 AC lot

    Tenant-occupied duplex with month-to-month leases, private yards, and access to East Hills Park amenities.

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    Two-Family Home with Finished Basement
    Two-Family Home with Finished Basement

    15 Lexington Avenue, Westbury, NY 11590

    $899,000

    Legal duplex with updated interiors, a walk-out lower level, garage, patio, and private landscaped yard.

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    Duplex with Finished Attic
    Duplex with Finished Attic

    6 Forest Avenue, Valley Stream, NY 11581

    $899,000
    0.14 AC lot

    Colonial duplex with a finished attic, full basement, private driveway, and detached oversized garage.

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