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    O Fallon, IL Duplexes for Sale

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    Swansea, IL Freeburg, IL Smithton, IL
    9 results
    Belleville Duplex: Investment Opportunity
    $129,900
    2,344 SF

    Belleville Duplex: Investment Opportunity

    619 E McKinley Street, Belleville, IL 62220

    Duplex with one rented unit and one updated vacant unit.

    • One unit (#617) is rented for $1150/month through 03/2027, providing immediate income.
    • Unit #619 is vacant and freshly updated with new flooring, paint, kitchen, and bath.
    • Opportunity to live in one unit and rent the other, offsetting mortgage costs.
    • Potential for increased cash flow by renting out both units.
    • Each unit features a living room, eat‑in kitchen, full bath, dining room/bonus room, plus two bedrooms.
    Updated: Apr 17
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    Turnkey Duplex with Income Potential
    $175,000
    2,140 SF

    Turnkey Duplex with Income Potential

    717 Royal Heights Road, Belleville, IL 62226

    Well-maintained duplex with strong cash flow and prime visibility.

    • Turnkey duplex providing immediate, stable income with long‑term tenants.
    • Significant cash flow potential due to below‑market rents.
    • Each unit includes in‑unit laundry, private patio, and covered carport parking.
    • Prime visibility on Royal Heights Rd.
    • Low‑maintenance investment with tenants paying all utilities.
    Updated: Apr 14
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    Income-Producing Duplex Near Park
    $129,000
    1,470 SF

    Income-Producing Duplex Near Park

    Duplex near park with tenant leases in place.

    24 Justice Drive, Belleville, IL 62226
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    Turnkey Duplex with Buildable Lot
    $209,000
    2,360 SF

    Turnkey Duplex with Buildable Lot

    Duplex with rental income and buildable lot in Belleville.

    2273 Frank Scott Parkway, Belleville, IL 62223
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    Belleville Duplex: Investment Opportunity
    $120,000
    1,802 SF

    Belleville Duplex: Investment Opportunity

    Duplex with income potential, one unit occupied, great investment.

    315 N 4th St, Belleville, IL 62220
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    Belleville Duplex Investment Opportunity
    $225,000
    1,920 SF

    Belleville Duplex Investment Opportunity

    Duplex in Belleville with income potential, 4 bedrooms, 2 bathrooms.

    3306 Saratoga Drive, Belleville, IL 62221
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    Updated Duplex on Corner Lot
    $135,000
    1,441 SF

    Updated Duplex on Corner Lot

    Updated duplex on a corner lot with investment potential.

    1301 N Charles Street, Belleville, IL 62221
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    Belleville Investment Property For Sale
    $140,000
    880 SF

    Belleville Investment Property For Sale

    Investment property featuring a two-bedroom unit and a one-bedroom unit.

    118 N 15th Street, Belleville, IL 62220
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    Updated Duplex with Strong Rental Appeal
    $250,000
    2,400 SF

    Updated Duplex with Strong Rental Appeal

    Turnkey duplex in Belleville, IL, with updated units.

    620 Ganim Drive, Belleville, IL 62221
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    Based on your search, we've compiled 13 Potential Opportunities for your consideration. Besides 9 Active listings in O Fallon, IL, we suggest exploring several alternatives: 4 properties in Nearby Cities

    Opportunities in Nearby Cities

    Here are 4 Similar properties we found in Nearby Locations for your consideration.

    East St Louis Duplex Auction
    Contact for pricing
    1,760 SF

    East St Louis Duplex Auction

    Two-unit duplex with basement and garage, sold as-is.

    1628 Gaty Avenue, East St Louis, IL 62205
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    Townhouse-Style Duplex in Mascoutah
    $275,000
    1,560 SF

    Townhouse-Style Duplex in Mascoutah

    Fully rented duplex in Mascoutah, great investment opportunity.

    406-408 N County Road, Mascoutah, IL 62258
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    East St Louis Income Property
    $40,000
    1,260 SF

    East St Louis Income Property

    Fully occupied two-family property generating returns from day one.

    544 N 29th Street, East St Louis, IL 62205
    View details
    Mascoutah Duplex: Investment Opportunity
    $262,500
    2,040 SF

    Mascoutah Duplex: Investment Opportunity

    Fully rented duplex in Mascoutah, great investment opportunity.

    303 Aaron Court, Mascoutah, IL 62258
    View details

    O Fallon, IL Duplexes Investment Opportunities Market Analysis

    Explore 9 duplexes for sale in O Fallon, IL, showcased through 9 active listings on our real estate platform. These investment opportunities span a total of 16,757 square feet of properties for sale, with an estimated market value of $1,512,900.

    Sale prices for duplexes in O Fallon, IL start at $120,000, averaging $168,100, and reaching up to $250,000 — 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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