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    Rock County, WI Duplexes for Sale

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    Beloit Multifamily Investment Opportunity
    Updated: Jan 21
    Beloit Multifamily Investment Opportunity

    743 8th Street, Beloit, WI 53511

    $214,900
    1,672 sqft
    Currently rents for $2,725/month; lower unit has a year lease and upper unit is month to month
    Freshly painted and new flooring upstairs and downstairs
    Built in 1895
    Forced‑air heating
    Includes refrigerator and stove/cooktop
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    This listing looks promising.

    Here's a quick look at some key insights for

    743 8th Street, BELOIT, WI 53511

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    • Est. Cap Rate

      7.2%
      Above avg (5.9%)

    • Est. NOI

      $15K
      Annual

    • Price @ 7% Cap

      $220K
      Above asking

    • Property Type

      Duplex
      Built 1895
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    Brand-New Duplex with Attached Garages
    Updated: May 29
    Brand-New Duplex with Attached Garages

    68-70 E Ash Lane, Milton, WI 53563

    $579,900
    0.30 AC lot
    Brand‑new duplex under construction, scheduled for 2026 build year
    Two modern units with private entries and attached two‑car garages per unit
    Each unit offers 3 bedrooms and 2 bathrooms with forced‑air heating
    Projected rent $2,200 per unit ($4,400 monthly) and annual gross scheduled rent of $52,800
    Projected NOI of $33,952 and landlord responsibilities limited to snow removal and landscaping
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    Upper-Lower Duplex with Detached Garages
    Upper-Lower Duplex with Detached Garages

    616-618 E Milwaukee Street, Janesville, WI 53545

    $345,000
    0.24 AC lot

    Well-maintained duplex with two 2-bedroom units, in-unit laundry, and detached 3-car and 2-car garages.

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    Brand-New Duplex with Private Entries
    Brand-New Duplex with Private Entries

    118-120 E Ash Lane, Milton, WI 53563

    $579,900
    0.30 AC lot

    New duplex with two 3-bedroom, 2-bath units, each with private entry and an attached two-car garage.

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    Turn Any Listing Into an Investment Snapshot Owner equity, real caprate, demand score for every listing. Go To Analytics Center
    Two-Flat with In-Unit Laundry
    Two-Flat with In-Unit Laundry

    612 Yuba Street, Janesville, WI 53545

    $235,000
    1,982 sqft

    Two spacious units with original woodwork, hardwood floors, and in-unit laundry, plus a newer 2-car garage.

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    Brand-New Duplex with Two Garages
    Brand-New Duplex with Two Garages

    56-58 E Ash Lane, Milton, WI 53563

    $579,900
    0.30 AC lot

    Newly built duplex offering two 3-bedroom, 2-bath units with private entries and attached two-car garages.

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    Upper/Lower Duplex with Recent Improvements
    Upper/Lower Duplex with Recent Improvements

    228 Milton Avenue, Janesville, WI 53545

    $329,000
    0.12 AC lot

    Upper/lower duplex with two 2-bedroom, 1-bath units and extensive lead-hazard reduction updates.

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    Side-by-Side Duplex With Parking
    Side-by-Side Duplex With Parking

    423-425 Center Avenue, Janesville, WI 53548

    $270,000
    0.27 AC lot

    Two 3-bedroom units with private basement access and off-street parking behind the building in Janesville.

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    Janesville Duplex Investment Opportunity
    Janesville Duplex Investment Opportunity

    306-308 West Centre Street, Footville, WI 53537

    $259,900
    2,402 sqft

    Spacious 3-bedroom units near downtown Janesville.

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    Three-Bedroom Duplex for Sale
    Three-Bedroom Duplex for Sale

    2626 Harvard Drive, Janesville, WI 53548

    $369,900
    0.29 AC lot

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

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    Spacious Duplex with 2-Car Garage
    Spacious Duplex with 2-Car Garage

    2101 Conde Street, Janesville, WI 53546

    $330,000
    1,430 sqft

    Three-bedroom duplex featuring an open layout and room to grow.

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

    1812-1814 W Kyle Circle, Beloit, WI 53511

    $559,900
    0.30 AC lot

    New two-unit duplex offering two 3-bedroom, 2-bath residences, each with an attached two-car garage.

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    New Duplex with Two-Car Garages
    New Duplex with Two-Car Garages

    1832-1834 W Kyle Circle, Beloit, WI 53511

    $559,900
    0.30 AC lot

    Brand-new duplex featuring two modern 3-bedroom, 2-bath units with attached two-car garages.

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    Beloit Duplex For Sale
    Beloit Duplex For Sale

    743 8th Street, Beloit, WI 53511

    $214,900
    1,672 sqft

    Income-generating duplex in Beloit with recent updates.

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    New Duplex Income Property
    New Duplex Income Property

    1802-1804 W Kyle Circle, Beloit, WI 53511

    $559,900
    0.30 AC lot

    Brand-new duplex with two modern 3-bed, 2-bath units and attached two-car garages near the I-39/90 and I-43 interchange.

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    Brand-New Duplex with Two-Car Garages
    Brand-New Duplex with Two-Car Garages

    1822-1824 W Kyle Circle, Beloit, WI 53511

    $559,900
    0.30 AC lot

    New duplex built with two modern 3-bedroom, 2-bath units and attached two-car garages.

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

    2626 Harvard Drive, Janesville, WI 53548

    $369,900

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

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    Side-by-Side Duplex with Parking
    Side-by-Side Duplex with Parking

    423-425 Center Avenue, Janesville, WI 53548

    $280,000

    Side-by-side duplex in Janesville with two 3-bedroom units, private basements, and off-street parking.

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    Renovated Duplex Near Downtown Janesville
    Renovated Duplex Near Downtown Janesville

    9 Elliott Street, Janesville, WI 53546

    $259,900

    Fully rented, renovated duplex with strong cash flow potential.

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    Janesville Duplex Investment Opportunity
    Janesville Duplex Investment Opportunity

    306-308 Center Avenue, Janesville, WI 53548

    $259,900

    Spacious 3-bedroom duplex near downtown Janesville.

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    Upper/Lower Duplex with Detached Garages
    Upper/Lower Duplex with Detached Garages

    616-618 E Milwaukee Street, Janesville, WI 53545

    Contact for pricing

    Well-maintained duplex with laundry in both units and detached garages for each level.

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    Based on your search, we've compiled Potential Opportunities for your consideration. Besides 21 Active Listings in Rock County, WI

    Rock County, WI Duplexes Market Trends and Statistics

    Explore 21 duplexes for sale in Rock County, WI, showcased through 21 active listings on our real estate platform. These investment opportunities span a total of 9,158 square feet of properties for sale, with an estimated market value of $1,254,700.

    Sale prices for duplexes in Rock County, WI start at $214,900, averaging $250,940, and reaching up to $330,000 — 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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