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    O Fallon, IL Duplexes for Sale

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    Swansea, IL Freeburg, IL Smithton, IL
    7 listings
    Duplex with Two Garages
    $149,000
    2,610 SF
    Duplex with Two Garages

    314 W H Street, Belleville, IL 62226

    Duplex in Belleville featuring separate two-car garage setups and a 2022 rehab, with one side currently vacant.
    • Brick duplex built in 1953 with attached garage and basement
    • Two‑unit layout: one side with 3 bedrooms and 1 bath, the other side with 1 bedroom and 1 bath
    • Right unit includes 1 bedroom and 1 bath on the main level plus 2 additional bedrooms in the lower level
    • 2022 rehab completed for both units
    • Rental income noted: 1‑bedroom unit rents for $745; 3‑bedroom unit is currently vacant
    Updated: Jun 9
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    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: May 26
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    Duplex with Two 2-Bed Units
    $265,000
    2,040 SF
    Duplex with Two 2-Bed Units

    Well-maintained duplex with two occupied 2-bedroom, 1-bath units, offering steady rental income potential.

    O Fallon, IL 62269

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    Two- to Four-Unit Multifamily Property
    $265,000
    2,093 SF
    Two- to Four-Unit Multifamily Property

    For-sale income property in O'Fallon, IL offering multiple residential units within a compact lot.

    O Fallon, IL 62269

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    Two-Unit Ranch with Attached Garages
    $169,000
    2,204 SF
    Two-Unit Ranch with Attached Garages

    Ranch-style two-bedroom units on a corner lot with attached garages, currently leased and producing rental income.

    161 Freedom Drive, Belleville, IL 62226

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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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    Updated Duplex with Corner Lot
    $84,900
    1,441 SF
    Updated Duplex with Corner Lot

    Updated kitchen and baths in a duplex set on a spacious corner lot, sold as-is for flexible occupancy or investment.

    1301 N Charles Street, Belleville, IL 62221

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    Based on your search, we've compiled 11 Potential Opportunities for your consideration. Besides 7 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.

    Collinsville Duplex with Rental Income
    $179,900
    1,134 SF
    Collinsville Duplex with Rental Income

    Two-unit property in Collinsville, move-in ready with rental income.

    615 N Center Street, Collinsville, IL 62234

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    Collinsville Multi-Unit Investment Opportunity
    $160,000
    1,923 SF
    Collinsville Multi-Unit Investment Opportunity

    Versatile multi-unit property with income potential near Uptown Collinsville.

    528 E Main Street, Collinsville, IL 62234

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    Townhouse-Style Duplex Investment Property
    $245,000
    1,560 SF
    Townhouse-Style Duplex Investment Property

    Fully rented duplex in Mascoutah, IL, with townhouse-style layout and long-term tenants.

    406-408 N County Road, Mascoutah, IL 62258

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    One-Story Duplex with Rental Tenancy
    $225,000
    2,040 SF
    One-Story Duplex with Rental Tenancy

    One-story duplex in Mascoutah, IL, with existing rental occupancy and professional management.

    303 Aaron Court, Mascoutah, IL 62258

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    O Fallon, IL Duplexes Market Trends and Statistics

    Explore 7 duplexes for sale in O Fallon, IL, showcased through 7 active listings on our real estate platform. These investment opportunities span a total of 8,197 square feet of properties for sale, with an estimated market value of $483,800.

    Sale prices for duplexes in O Fallon, IL start at $84,900, averaging $120,950, and reaching up to $149,000 — 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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    Top Commercial Asset Segments

    Commercial property segments ranked by active listings on the market

    Apartment buildings 2
    Duplexes 2

    Demographics Overview

    Population 36K
    Population Growth (5Y) +11.0%
    Median Household Income $100,167
    College Educated 74.8%

    Taxes & Financing

    Average Loan-to-Value 65.0%

    Listings Trend

    New vs delisted commercial listings in St. Clair County

    New Delisted

    Total CRE Inventory on Market (SF)

    Average Property Price per SF

    For-sale pricing trends across core commercial property types in St. Clair County

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    Most Searched ZIP Codes in O Fallon, IL

    • 62220
    • 62226
    • 62269
    • 62221

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