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    Union County, NJ Duplexes for Sale

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    171 properties
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    Duplex Renovation Property
    Updated: Oct 2
    Duplex Renovation Property

    525 Leo St, Hillside, NJ 07205

    $599,000
    4,252 sqft 0.12 AC lot
    4,252‑square‑foot duplex on a 0.12‑acre lot
    Interior fully gutted; demolition completed
    Room list includes 4 bedrooms, 2 bathrooms, and a basement
    Built in 1934
    Public water and public sewer
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    Duplex with Two Garages
    Updated: Sep 29
    Duplex with Two Garages

    655 4Th Ave, Elizabeth, NJ 07202

    $699,000
    2,314 sqft 0.06 AC lot
    2,314‑square‑foot duplex on a 0.06‑acre lot
    Two apartments: a two‑bedroom first‑floor unit and a three‑bedroom upper unit
    Two garages
    Unfinished basement with half bath and dedicated laundry room
    Built in 1900
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    Renovated Duplex with Full Basement
    Renovated Duplex with Full Basement

    738 Edgar Road, Elizabeth, NJ 07202

    $529,000
    1,736 sqft 0.05 AC lot

    Two residential units, private outdoor space, and public utilities support flexible occupancy or rental use.

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    Mixed-Use Property with Liquor License
    Mixed-Use Property with Liquor License

    400 Seaton Ave, Roselle Park, NJ 07204

    $1,399,000
    4,000 sqft

    Bar and restaurant space is paired with two residential apartments and basement storage.

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    Side-by-Side Duplex
    Side-by-Side Duplex

    221 223 E 2Nd Ave, Roselle, NJ 07203

    $959,000
    2,911 sqft 0.32 AC lot

    Two attached residences with private outdoor features, central air, and public water and sewer service.

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    Under-Construction Duplex
    Under-Construction Duplex

    1023 Grove St, Elizabeth, NJ 07202

    $1,250,000
    4,649 sqft 0.11 AC lot

    New construction with central air, forced-air heating, public utilities, and an oversized garage.

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    Residential Duplex with Deck
    Residential Duplex with Deck

    50 Reid St, Elizabeth, NJ 07201

    $720,000
    2,052 sqft 0.06 AC lot

    The property includes a deck and patio, with shopping, dining, transit, and major highways nearby.

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    Renovated Two-Family Duplex
    Renovated Two-Family Duplex

    29 S 2ND STREET, Elizabeth, NJ 07206

    $1,250,000
    5,610 sqft

    Fully updated two-unit property with finished basement and attic areas for added flexibility.

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    Two-Unit Duplex Property
    Two-Unit Duplex Property

    153 S Park Street, Elizabeth, NJ 07206

    $629,000
    1,826 sqft 0.05 AC lot

    Separate three-bedroom and two-bedroom units each include one full bath for occupancy or leasing flexibility.

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    Two-Unit Duplex with Basement
    Two-Unit Duplex with Basement

    444 3rd Ave, Elizabeth, NJ 07206

    $999,000
    0.06 AC lot

    Two distinct residences offer separate laundry, with one unit extending into the basement and the other arranged on one level.

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

    1091 Alfieri Ct, Union, NJ 07083

    $1,099,900
    2,744 sqft

    Renovated two-family property with separate utilities, finished basement, and substantial off-street parking.

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    Duplex with Third-Floor Bonus Space
    Duplex with Third-Floor Bonus Space

    1602 Bayview Ave, Hillside, NJ 07205

    $599,000
    3,301 sqft 0.09 AC lot

    Two-story duplex with additional upper-level space, public utilities, and a shingle roof.

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    Duplex with Flexible Workspace
    Duplex with Flexible Workspace

    327 North Ave E, Cranford, NJ 07016

    $799,900
    0.14 AC lot

    Two-family property with finished basement space, off-street parking, and mixed-use/commercial zoning subject to municipal approvals.

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    Duplex with Ground-Level Living Space
    Duplex with Ground-Level Living Space

    183 Laurel Ave, Union, NJ 07083

    $799,900
    2,813 sqft

    Two three-bedroom units offer hardwood floors, flexible lower-level space, and parking for multiple vehicles.

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

    255 Ohio St, Union, NJ 07083

    $650,000
    2,400 sqft 0.11 AC lot

    Two separate living spaces combine with an updated basement, multiple parking options, and a backyard.

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    Duplex With Two-Level Upper Unit
    Duplex With Two-Level Upper Unit

    565 Madison Ave, Elizabeth, NJ 07201

    $675,000
    0.10 AC lot

    Separate utilities serve the two residences, with off-street parking for multiple vehicles.

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    Two-Story Mixed-Use Building
    Two-Story Mixed-Use Building

    2376 Mountain Ave, Scotch Plains, NJ 07076

    $1,095,000
    5,000 sqft

    Includes two three-bedroom apartments, basement storage, and attic space.

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    Two-Unit Duplex with Finished Attic
    Two-Unit Duplex with Finished Attic

    1357 S 2nd St, Plainfield, NJ 07063

    $649,000
    0.18 AC lot

    Renovated kitchens, hardwood flooring, a privacy fence, and on-site parking are among the property’s features.

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    Renovated Duplex Income Property
    Renovated Duplex Income Property

    738 Edgar Rd, Elizabeth, NJ 07202

    $529,000
    1,736 sqft

    Renovated two-unit duplex with two 2-bedroom apartments, full basement storage, and a private backyard.

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    Two-Unit Duplex with Private Yard
    Two-Unit Duplex with Private Yard

    12 Carpenter Pl, Cranford, NJ 07016

    $889,000
    7,000 sqft 0.16 AC lot

    Two residences include flexible basement space, a two-car garage, and public water and sewer.

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    Two-Family Duplex with Separate Living Spaces
    Two-Family Duplex with Separate Living Spaces

    1216 Broadway, Hillside, NJ 07205

    $619,900
    1,892 sqft

    Residential property with distinct accommodations, comfortable interiors, and access to schools, shopping, parks, highways, and public transportation.

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    Two-Unit Duplex
    Two-Unit Duplex

    322 S 7Th St, Elizabeth, NJ 07202

    $519,000
    0.06 AC lot

    Both residences offer two bedrooms and one full bathroom.

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    Two-Unit Duplex with Bonus Space
    Two-Unit Duplex with Bonus Space

    1602 Bayview Ave, Hillside, NJ 07205

    $599,000
    3,301 sqft

    Each residence offers two bedrooms and one bathroom, with additional adaptable space on the third floor.

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    Renovated Two-Family Duplex
    Renovated Two-Family Duplex

    1091 Alfieri Ct, Union, NJ 07083

    $1,099,900
    2,744 sqft 0.09 AC lot

    Two residential units feature updated interiors, separate utilities, central air, and access to a finished basement.

    View details

    Union County, NJ Duplexes Market Trends and Statistics

    Explore 171 duplexes for sale in Union County, NJ, showcased through 171 active listings on our real estate platform. These investment opportunities span a total of 84,026 square feet of properties for sale, with an estimated market value of $130,511,641.

    Sale prices for two-family homes in Union County, NJ start at $375,000, averaging $786,214, and reaching up to $1,600,000 — 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 Union County Real Estate Agencies

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

    Better Homes and Gardens RE Elite
    181 North Ave East Cranford, NJ 07016
    Phone: 19083168530
    coldwell banker liberty
    67 ELMORA AVE Elizabeth, NJ 07202
    Phone: 19085271711
    www.homesliberty.com
    Century 21 Real Estate Group
    1824 Front Scotch Plains, NJ 07076
    Phone: 19083222901
    www.century21realestategroupnj.com
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