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    Illinois Duplexes for Sale

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    1,175 properties
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    Historic Duplex with Short-Term Rental
    Updated: Jun 30
    Historic Duplex with Short-Term Rental

    209 S Prospect Street, Galena, IL 61036

    $850,000
    4,608 sqft
    4,608 square feet arranged as two separate residences
    Each residence offers 3 bedrooms and 3 bathrooms
    City of Galena short‑term rental license for 4‑person occupancy
    Built in 1900 with Federal‑style brick construction and Greek Revival influences
    Elevated setting with panoramic views across Galena and surrounding countryside
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    Duplex with Finished Basements
    Updated: Aug 15
    Duplex with Finished Basements

    O Fallon, IL 62269

    $675,000
    2,142 sqft 0.67 AC lot
    Two‑unit duplex with 2 bedrooms and 3 bathrooms on each side
    Left side: ~1,375 sq ft with ~500 sq ft garage; right side: 1,420 sq ft with ~490 sq ft garage
    Each unit includes approximately 725 sq ft of partially finished basement space
    0.67‑acre property at 106 S Lawn Avenue, O'Fallon, IL 62269
    Covered composite decks overlook a deep backyard
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    Two-Unit Duplex with Porches
    Two-Unit Duplex with Porches

    302 E Central Street, Bethalto, IL 62010

    $325,000
    2,352 sqft 0.31 AC lot

    One residence is leased, while the other is vacant and recently updated for occupancy.

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    Renovated Mixed-Use Property
    Renovated Mixed-Use Property

    517 S 9th Ave, Maywood, IL 60153

    $599,999
    7,712 sqft

    Combines leased residential units with renovated automotive shop space and included equipment.

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    Duplex with Finished Lower Levels
    Duplex with Finished Lower Levels

    3746-48 THYME Drive, Rockford, IL 61114

    $349,900
    3,750 sqft

    Two residences offer separate garages, fenced yards and laundry rooms.

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    Two-Unit Brick Duplex
    Two-Unit Brick Duplex

    824 Henry Street, Alton, IL 62002

    $235,000
    2,290 sqft 0.17 AC lot

    Both apartments are currently rented, with a one-bedroom layout downstairs and a two-bedroom residence above.

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    Two-Unit Duplex with Off-Street Parking
    Two-Unit Duplex with Off-Street Parking

    517 Mascoutah Avenue, Belleville, IL 62220

    $129,900
    1,813 sqft 0.39 AC lot

    Two residences offer central air, deck space, and public water service on a 0.39-acre parcel.

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    Mixed-Use Building with Storefront
    Mixed-Use Building with Storefront

    2140 W Cermak Rd, Chicago, IL 60608

    $900,000
    4,320 sqft

    Two three-bedroom apartments complement a renovated commercial space with flexible interior layout and access to a partial basement.

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    Duplex with Attached Garages
    Duplex with Attached Garages

    26 Fox Meadow Lane, Glen Carbon, IL 62034

    $319,900
    1,958 sqft 0.35 AC lot

    Two matching residences offer private outdoor space, walk-out lower levels, and separate one-car garages.

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    Brick Duplex with Carports
    Brick Duplex with Carports

    112 Kingsway Drive, Belleville, IL 62226

    $174,500
    2,032 sqft 0.21 AC lot

    Two ranch-style units each include two bedrooms, one bathroom, and a dedicated carport.

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    2-Unit Brick Duplex
    2-Unit Brick Duplex

    9409 S Kolmar Ave, Oak Lawn, IL 60453

    $529,900
    2,233 sqft

    The two apartments have separate eat-in kitchens, with three bedrooms downstairs and two on the upper level.

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    Two-Unit Duplex with Garage
    Two-Unit Duplex with Garage

    202 E 1st Street, Waterloo, IL 62298

    $210,000
    1,396 sqft 0.14 AC lot

    Downtown Waterloo rental property with separate laundry arrangements, central air, and one detached garage.

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    Renovated Duplex with Central Air
    Renovated Duplex with Central Air

    1619 Charles Street, Rockford, IL 61104

    $199,900
    2,916 sqft

    Two residential units offer multi-level layouts, seven bedrooms, on-site parking, and access to nearby transit and services.

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    Mixed-Use Building with Commercial Space
    Mixed-Use Building with Commercial Space

    5154 W Wolfram St, Chicago, IL 60641

    $699,000
    8,984 sqft

    Two residential units complement commercial space along Laramie Avenue at Diversey Avenue.

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

    415 Sherman Street, Rockford, IL 61103

    $200,000
    2,080 sqft

    Two separate residences each offer two bedrooms, a full bathroom, and private basement storage.

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    Updated Duplex with Garage
    Updated Duplex with Garage

    1211 4th Avenue, Rockford, IL 61104

    $188,900
    1,976 sqft

    Vacant two-unit property with refreshed interiors, basement storage, attic access, and a four-car garage.

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    B2B-Zoned Commercial Land
    B2B-Zoned Commercial Land

    2050 W Grand Ave, Chicago, IL 60612

    $1,300,000
    1,798 sqft

    Two adjoining parcels combine an existing two-unit frame building with a vacant lot and flexible development potential.

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    Brick Duplex with Detached Garage
    Brick Duplex with Detached Garage

    609 E C Street, Belleville, IL 62220

    $235,000
    1,410 sqft 0.16 AC lot

    Two residential units feature private basements, laundry hookups, updated countertops, and rear parking with alley access.

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    Vacant Mixed-Use Property
    Vacant Mixed-Use Property

    5316 W North Ave, Chicago, IL 60639

    $469,900
    4,098 sqft

    Street-level commercial space with two apartments and a detached garage, offered vacant for flexible occupancy or leasing plans.

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    Remodeled Two-Unit Duplex
    Remodeled Two-Unit Duplex

    821 Alby Street, Alton, IL 62002

    $124,900
    3,258 sqft 0.22 AC lot

    The property combines a two-bedroom residence with a three-bedroom residence and updated finishes in the larger unit.

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    Brick Duplex with Private Balconies
    Brick Duplex with Private Balconies

    1314 W Carmen Ave, Chicago, IL 60640

    $1,200,000
    3,400 sqft 0.14 AC lot

    Two spacious apartments combine distinct layouts with a remodeled first-floor kitchen and preserved architectural details.

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    Occupied Duplex with Basement Units
    Occupied Duplex with Basement Units

    205 Walnut Street, Bartelso, IL 62218

    $329,000
    2,886 sqft 0.27 AC lot

    Tenant-occupied duplex with separate three-bedroom and two-bedroom residences, each offering an unfinished basement.

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    Newer Two-Unit Residential Property
    Newer Two-Unit Residential Property

    5431 30th Place, Cicero, IL 60804

    $575,000
    3,000 sqft

    Turnkey two-unit property built in 2023 with modern finishes, multiple bedrooms and bathrooms, and an unfinished basement.

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    Mixed-Use Building with Salon Space
    Mixed-Use Building with Salon Space

    115 Fairview Avenue, Rockford, IL 61108

    $214,900
    1,639 sqft

    Permitted salon area and a two-bedroom apartment support combined work and residential use.

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    Illinois Duplexes Market Trends and Statistics

    Explore 1175 duplexes for sale in Illinois, showcased through 1175 active listings on our real estate platform. These investment opportunities span a total of 385,896 square feet of properties for sale, with an estimated market value of $391,937,490.

    Sale prices for two-family homes in Illinois start at $30,000, averaging $365,954, and reaching up to $2,200,000 — 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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