St Clair County, IL Duplexes for Sale

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Updated: Jul 28

Duplex Property With Carports

18 Kingsway Drive, Belleville, IL 62226

$169,900

2,100 sqft

Duplex property with 2,100 square feet
Includes carports for resident parking
Unit details include 2 bedrooms and 1 bath
Tenants pay all utilities
Located at 18 Kingsway Drive in Belleville, IL 62226

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18 Kingsway Drive, Belleville, IL 62226

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Est. Cap Rate

9.2%
Above avg (5.9%)
Est. NOI

$16K
Annual
Price @ 7% Cap

$223K
Above asking
Property Type

Duplex
Built 1979

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Updated: Aug 15

New Construction Duplex

O Fallon, IL 62269

$675,000

2,142 sqft 0.67 AC lot

Two‑unit ranch‑style duplex with 2 bedrooms and 3 bathrooms per side
Under‑construction property on a 0.67‑acre lot at 106 S Lawn Avenue
Partially finished basement in each unit with a family room and full bath
Shaker‑style soft‑close cabinets, quartz countertops, and kitchen islands
Covered composite decks and deep backyard areas for each unit

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Two-Unit Duplex with Off-Street Parking

517 Mascoutah Avenue, Belleville, IL 62220

$129,900

1,813 sqft 0.39 AC lot

Two residential units offer separate two-bedroom, one-bath layouts with off-street parking and central air.

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Ranch Duplex with Central Air

112 Kingsway Drive, Belleville, IL 62226

$174,500

2,032 sqft 0.21 AC lot

Ranch-style duplex on a 0.21-acre lot with two 2-bedroom, 1-bath units, central air, and a 1-car carport.

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Corner Lot Retail and Multifamily

1902 W Highway 50, O Fallon, IL 62269

$400,000

1,500 sqft

B-1 zoned property with two two-bedroom rental units on a corner lot with highway frontage for signage visibility.

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Two-Unit Duplex with Central Air

O Fallon, IL 62269

$259,000

2,040 sqft 0.21 AC lot

Each residence offers two bedrooms and one bathroom, with both units currently occupied.

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Brick Duplex with Full Basement

113 E Apple Street, Freeburg, IL 62243

$275,000

2,560 sqft 0.38 AC lot

Two residential units include six bedrooms, three full baths, and a basement with additional bathroom space.

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Duplex with Two-Car Garage

314 W H Street, Belleville, IL 62226

$144,000

2,610 sqft 0.20 AC lot

Duplex in Belleville with two units, each with a garage, and a 2022 rehab on both sides.

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Brick Duplex with Covered Parking

213 Brackett Street, Swansea, IL 62226

$169,900

1,350 sqft 0.20 AC lot

Brick duplex with two bedrooms and one bathroom per unit, shared laundry, and covered parking in back.

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Turnkey Duplex with Separate Utilities

1639-1641 N Charles Street, Belleville, IL 62221

$179,900

1,530 sqft 0.14 AC lot

Turnkey duplex with central air, separate utilities, and fully fenced, privacy-yard separation for each side.

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Two-Unit Duplex with Carports

112 Kingsway Drive, Belleville, IL 62226

$174,500

2,032 sqft

Each residence includes two bedrooms, one bathroom, and a dedicated covered parking space.

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Brick Duplex with Private Yard

619 E McKinley Street, Belleville, IL 62220

$129,900

2,344 sqft 0.20 AC lot

Brick duplex with central air, two bedrooms upstairs per unit, and a private backyard for outdoor space.

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Ranch-Style Brick Duplex

170 Liberty Drive, Belleville, IL 62226

$184,900

2,216 sqft 0.23 AC lot

Ranch-style brick duplex with central air and forced-air heat, on public water, built in 1969.

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Occupied Two-Unit Duplex

809 White Oak Dr, O Fallon, IL 62269

$265,000

2,040 sqft

Each residence includes two bedrooms and one bathroom.

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Duplex with Two 1-Bed Units

315 N 4th St, Belleville, IL 62220

$120,000

1,802 sqft

Duplex offers two 1-bedroom, 1-bath units with one currently occupied and one vacant for flexible next steps.

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Two-Unit Income Duplex with Bonus Lot

3312 Market Avenue, East St Louis, IL 62207

Contact for pricing

2,520 sqft 0.28 AC lot

Duplex with estimated 6-bedroom configuration plus adjacent vacant land sold together for flexible income and renovation planning.

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Two-Unit Duplex with Eat-In Kitchens

411 N 5th St, Belleville, IL 62220

$55,000

1,132 sqft

The property includes one vacant unit and one currently occupied unit.

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Two-Unit Duplex Investment Property

1628 Gaty Avenue, East St Louis, IL 62205

Contact for pricing

1,760 sqft 0.10 AC lot

Historic 2-unit duplex with basement space and a two-car garage for owner-occupiers or rental investors.

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Single-Story Duplex on Two Parcels

210 Anderson Lane, Belleville, IL 62221

$260,000

Two-parcel residential income property with seller-owned appliances included at contract and access to nearby shopping, dining, and employment centers.

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Updated Duplex on Corner Lot

1301 N Charles Street, Belleville, IL 62221

$74,900

1,441 sqft 0.18 AC lot

Updated duplex on a corner lot with four bedrooms, two bathrooms, basement, and central air and window units.

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Updated Duplex with Detached Garage

1411 N Charles Street, Belleville, IL 62221

$199,000

Two-unit property with one residence leased and the other available for occupancy.

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Duplex with Carports

18 Kingsway Drive, Belleville, IL 62226

$169,900

2,100 sqft 0.19 AC lot

Duplex featuring two bedrooms, one bath per unit, central air, and carports.

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Updated Duplex with Separate Yards

1639-1641 N Charles Street, Belleville, IL 62221

$179,900

Two-unit property offers independent services, flexible layouts, and off-street parking.

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Rehabilitated Duplex with Garages

314 W H Street, Belleville, IL 62226

$144,000

Two-unit residential income property with separate garages and a vacant three-bedroom residence.

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St Clair County, IL Duplexes Market Trends and Statistics

Explore 26 duplexes for sale in St Clair County, IL, showcased through 26 active listings on our real estate platform. These investment opportunities span a total of 39,064 square feet of properties for sale, with an estimated market value of $4,769,100.

Sale prices for duplexes in St Clair County, IL start at $55,000, averaging $207,352, and reaching up to $675,000 — 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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St Clair County, IL Duplexes for Sale

18 Kingsway Drive, Belleville, IL 62226

O Fallon, IL 62269

517 Mascoutah Avenue, Belleville, IL 62220

112 Kingsway Drive, Belleville, IL 62226

1902 W Highway 50, O Fallon, IL 62269

O Fallon, IL 62269

113 E Apple Street, Freeburg, IL 62243

314 W H Street, Belleville, IL 62226

213 Brackett Street, Swansea, IL 62226

1639-1641 N Charles Street, Belleville, IL 62221

112 Kingsway Drive, Belleville, IL 62226

619 E McKinley Street, Belleville, IL 62220

170 Liberty Drive, Belleville, IL 62226

809 White Oak Dr, O Fallon, IL 62269

315 N 4th St, Belleville, IL 62220

3312 Market Avenue, East St Louis, IL 62207

411 N 5th St, Belleville, IL 62220

1628 Gaty Avenue, East St Louis, IL 62205

210 Anderson Lane, Belleville, IL 62221

1301 N Charles Street, Belleville, IL 62221

1411 N Charles Street, Belleville, IL 62221

18 Kingsway Drive, Belleville, IL 62226

1639-1641 N Charles Street, Belleville, IL 62221

314 W H Street, Belleville, IL 62226

St Clair County, IL Duplexes Market Trends and Statistics

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