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    Rock County, WI Duplexes for Sale

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    33 properties
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    Six-Bedroom Duplex
    Updated: Oct 14
    Six-Bedroom Duplex

    125 Glen Street, Janesville, WI 53545

    $115,000
    0.14 AC lot
    Six bedrooms
    0.14‑acre lot
    Built in 1900
    Forced‑air heating
    B6 zoning
    View details
    Two-Unit Duplex
    Updated: Jul 15
    Two-Unit Duplex

    2626 Harvard Drive, Janesville, WI 53548

    $369,900
    0.29 AC lot
    Two three‑bedroom residences in one duplex
    0.29‑acre lot with R‑1 zoning
    One residence has 2.5 bathrooms, a private primary suite, and an attached two‑car garage
    Second residence has 1.5 bathrooms and an attached one‑car garage
    Built in 1984; forced‑air heating
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    Updated Duplex with Two Units
    Updated Duplex with Two Units

    228 Milton Avenue, Janesville, WI 53545

    $309,000
    0.12 AC lot

    Both residences offer two bedrooms and one full bathroom.

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    Duplex with Commercial Zoning
    Duplex with Commercial Zoning

    1-3 Mechanic St, Edgerton, WI 53534

    $380,000
    1,500 sqft

    Duplex featuring two three-bedroom units with separate utility meters and a remodeled lower unit.

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    B-2-Zoned Duplex
    B-2-Zoned Duplex

    1-3 Mechanic Street, Edgerton, WI 53534

    $380,000
    0.11 AC lot

    Two three-bedroom residences have separate utilities and basement laundry and storage.

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    Two-Unit Duplex with Garages
    Two-Unit Duplex with Garages

    56-58 E Ash Lane, Milton, WI 53563

    $549,900
    0.30 AC lot

    Private entrances and forced-air heating serve both residences, each with an attached garage.

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    Upper-Lower Duplex with Garages
    Upper-Lower Duplex with Garages

    316-316 1/2 Spencer Street, Edgerton, WI 53534

    $185,000
    0.34 AC lot

    Two separate residences each have dedicated mechanical systems, electrical service, garage access, and basement laundry areas.

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    Well-Maintained Duplex with Garages
    Well-Maintained Duplex with Garages

    2626 Harvard Drive, Janesville, WI 53548

    $369,900
    2,466 sqft

    Duplex on a quiet cul-de-sac with two tenant-occupied 3-bedroom units and attached garages.

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    Two-Unit Duplex with Garages
    Two-Unit Duplex with Garages

    118-120 E Ash Lane, Milton, WI 53563

    $549,900
    0.30 AC lot

    Both homes have private entrances, two bathrooms, and attached garages.

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    2-Unit Duplex with Attached Garages
    2-Unit Duplex with Attached Garages

    68-70 E Ash Lane, Milton, WI 53563

    $549,900
    0.30 AC lot

    Both residences offer three bedrooms, two bathrooms, private entrances, and attached two-car garages.

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    Mixed-Use Building with Apartments
    Mixed-Use Building with Apartments

    550 E Grand, Beloit, WI 53511

    $249,000
    2,143 sqft

    Two-unit property combines a retail storefront, apartment living areas, and additional finished basement rooms.

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    New Construction Duplex
    New Construction Duplex

    1832-1834 W Kyle Circle, Beloit, WI 53511

    $519,900
    0.30 AC lot

    Two three-bedroom residences each include two bathrooms and an attached two-car garage.

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    Duplex with Attached Garages
    Duplex with Attached Garages

    1802-1804 W Kyle Circle, Beloit, WI 53511

    $519,900
    0.30 AC lot

    Two three-bedroom residences each include two bathrooms and a two-car garage.

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    Two-Unit Duplex with Split Yard
    Two-Unit Duplex with Split Yard

    515 North Pearl Street, Janesville, WI 53548

    $189,900
    1,511 sqft

    Two residential units feature recent improvements, updated mechanicals, and separate outdoor areas near downtown Janesville.

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    2-Unit Duplex with Attached Garages
    2-Unit Duplex with Attached Garages

    1812-1814 W Kyle Circle, Beloit, WI 53511

    $519,900
    0.30 AC lot

    Each residence has three bedrooms, two bathrooms, and a layout designed for single-family-style living.

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

    303 St Lawrence Avenue, Beloit, WI 53511

    $199,000
    0.16 AC lot

    The property is zoned R-1B and includes basement access from the one-bedroom side.

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    Brand-New Duplex with Attached Garages
    Brand-New Duplex with Attached Garages

    56-58 East Ash, Milton, WI 53563

    $549,900
    2,805 sqft

    Two modern 3-bedroom, 2-bath units feature private entries and attached two-car garages.

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    New Construction Duplex
    New Construction Duplex

    1822-1824 W Kyle Circle, Beloit, WI 53511

    $519,900
    0.30 AC lot

    Two three-bedroom residences each include two bathrooms and an attached two-car garage.

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    Three-Bedroom Duplex with Garages
    Three-Bedroom Duplex with Garages

    68 E Ash Ln, Milton, WI 53563

    Contact for pricing
    2,805 sqft

    Contemporary two-unit rental property with efficient layouts and attached parking for each residence.

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    Two-Unit Duplex with Garages
    Two-Unit Duplex with Garages

    56 E Ash Ln, Milton, WI 53563

    Contact for pricing
    2,805 sqft

    Modern residences feature efficient layouts, private garages, and three-bedroom floor plans.

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    Upper-Lower Duplex with Garages
    Upper-Lower Duplex with Garages

    316-316 1/2 Spencer Street, Edgerton, WI 53534

    $185,000
    0.34 AC lot

    Two separate units include individual mechanical systems, garages, and basement laundry areas.

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    Side-by-Side Duplex on Fenced Lot
    Side-by-Side Duplex on Fenced Lot

    801 W State Road 11, Janesville, WI 53546

    $375,000

    Two-unit property with one long-term rental and one furnished rental setup.

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    New Duplex with Attached Garages
    New Duplex with Attached Garages

    1822-1824 E Kyle Ln, Beloit, WI 53511

    $519,900

    Brand-new duplex with two modern residences, contemporary finishes, and attached garages near major regional highway access.

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    Brand-New Duplex With Garages
    Brand-New Duplex With Garages

    1802-1804 E Kyle Ln, Beloit, WI 53511

    $519,900

    Two modern residences feature three-bedroom layouts, two baths, contemporary finishes, and attached garages.

    View details
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    Rock County, WI Duplexes Market Trends and Statistics

    Explore 33 duplexes for sale in Rock County, WI, showcased through 33 active listings on our real estate platform. These investment opportunities span a total of 16,035 square feet of properties for sale, with an estimated market value of $9,274,600.

    Sale prices for two-family homes in Rock County, WI start at $115,000, averaging $370,984, and reaching up to $549,900 — 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 Rock County Real Estate Agencies

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

    Coldwell Banker The Realty Group
    4435 N State Road 26 Janesville, WI 53546
    Phone: 16087411000
    www.cbtherealtygroup.com
    Better Homes and Gardens Real Estate Dream Partners
    1701 Holiday Drive Janesville, WI 53545
    Phone: 16083456197
    www.bhgdreampartners.com/
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