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    O Fallon, IL Office Spaces for Lease

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    Swansea, IL Millstadt, IL Shiloh, IL Fairview Heights, IL East St Louis, IL Sauget, IL Cahokia, IL Columbia, IL
    16 properties
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    Full-Service Office Suite
    Updated: Sep 18
    Full-Service Office Suite

    O Fallon, IL 62269

    Contact for pricing
    1,800 sqft
    1,800‑square‑foot full‑service office suite
    Reception and waiting area with 3 private offices
    2 conference rooms plus 2 additional rooms
    Breakroom included within the suite layout
    Located on South Lincoln Avenue in O’Fallon, Illinois
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    Former Dental Office with Exam Rooms
    Updated: May 27
    Former Dental Office with Exam Rooms

    5300 W Main St, Belleville, IL 62226

    Contact for pricing
    2,500 sqft
    2,500 SF former dental office built in 1979, available for sale or lease
    Front reception area with built‑in reception desk plus dedicated file room for efficient workflow
    Six exam rooms or private offices for flexible patient‑facing or private workspace use
    Back‑office support includes break room with washer/dryer hookups and a kitchenette/lab area
    Located along West Main Street in West Belleville for convenient access near established commercial corridors
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    Flex Space with Warehouse Shop
    Flex Space with Warehouse Shop

    O Fallon, IL 62269

    Contact for pricing
    10,977 sqft 1.79 AC lot

    B-2 General Business property combining offices, showroom space, and a warehouse-shop component with multiple overhead doors.

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    Professional Office Suite on Main
    Professional Office Suite on Main

    7200 West Main Street, Belleville, IL 62223

    Contact for pricing
    1,944 sqft

    Well-appointed office suite with seven private offices, conference space, and ample on-site parking on West Main Street.

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    Renovated Two-Story Office Building
    Renovated Two-Story Office Building

    1127 East B St, Belleville, IL 62220

    Contact for pricing
    11,874 sqft 1.06 AC lot

    Climate-controlled workspace includes private offices, meeting space, and an employee parking area.

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    Medical Office Space with Exam Rooms
    Medical Office Space with Exam Rooms

    2900 Frank Scott Pkwy W, Belleville, IL 62226

    Contact for pricing
    3,857 sqft

    Leasable medical office with an oversized waiting room and seven exam rooms in the Copper Bend Centre office park.

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    Medical or Office Suite with 9-Foot Ceilings
    Medical or Office Suite with 9-Foot Ceilings

    O Fallon, IL 62269

    Contact for pricing
    5,776 sqft

    Suite C offers a divisible 5,776 SF office/medical layout with 9-foot ceilings, private offices, and ADA-compliant restrooms.

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    Office Space Near I-64
    Office Space Near I-64

    O Fallon, IL

    Contact for pricing
    11,998 sqft 2.53 AC lot

    High-end office space with excellent visibility and convenient location.

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    High-End Office Space Available
    High-End Office Space Available

    O Fallon, IL 62269

    Contact for pricing
    2,100 sqft

    6,819 SF office space with high-end finishes for lease.

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    Belleville Office Space for Lease
    Belleville Office Space for Lease

    7650 Magna Dr, Belleville, IL

    Contact for pricing
    13,144 sqft 13.93 AC lot

    Professional office suites available with highway visibility and ample parking.

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    Flex Space with Interstate Access
    Flex Space with Interstate Access

    1550-1562 Frontage Rd, O Fallon, IL 62269

    Contact for pricing
    6,500 sqft

    Office and warehouse configuration with two available spaces and landlord-paid water and sewer.

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    Office/Retail Building Near I-64
    Office/Retail Building Near I-64

    O Fallon, IL 62269

    Contact for pricing
    2,750 sqft

    Office/retail building near I-64 and St. Elizabeth’s hospital.

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    Executive Office Suite For Rent
    Executive Office Suite For Rent

    O Fallon, IL 62269

    Contact for pricing
    136 sqft

    Executive office suite in Lakepoint Professional Center available for rent.

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    Office Suite with Parking
    Office Suite with Parking

    O Fallon, IL 62269

    Contact for pricing
    1,766 sqft

    Professionally managed suite offering 5 offices plus waiting and breakroom space, with adequate parking on-site.

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    Professionally Managed Office Suites
    Professionally Managed Office Suites

    O Fallon, IL 62269

    Contact for pricing
    1,745 sqft

    Flexible office layouts include private rooms, conference areas, reception space, and open work areas.

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    Downtown Belleville Office/Retail Space
    Downtown Belleville Office/Retail Space

    23 Public Square, Belleville, IL 62220

    Contact for pricing

    Office and retail space available in historic downtown Belleville.

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    Based on your search, we've compiled 42 Potential Opportunities for your consideration. Besides 16 Active listings in O Fallon, IL, we suggest exploring alternatives. Consider Similar 4 Spaces in Nearby Cities, and Similar 22 Properties for Sales.

    Office Spaces for Lease in Nearby Cities

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

    Swansea Creative Sublease Opportunity
    Swansea Creative Sublease Opportunity

    33 Bronze Pointe Boulevard, Swansea, IL 62226

    $10 SF/Yr
    21,800 sqft

    Creative, medical, or professional services sublease in Swansea, Illinois.

    View details
    Renovated Office Suite with Views
    Renovated Office Suite with Views

    16 Executive Dr, Fairview Heights, IL

    Contact for pricing
    4,732 sqft 2.13 AC lot

    Turnkey 4,723 SF office suite with abundant natural light.

    View details
    Office/Flex Space For Rent
    Office/Flex Space For Rent

    13 Executive Dr, Fairview Heights, IL

    Contact for pricing
    9,979 sqft 3.90 AC lot

    Office and flex spaces available in Fairview Heights, Illinois.

    View details
    Two-Level Professional Office Suite
    Two-Level Professional Office Suite

    4010 N Illinois St, Swansea, IL 62226

    Contact for pricing
    2,652 sqft

    Configured for private offices, meetings, reception, storage, and staff support functions across two levels.

    View details

    Similar Spaces for Sale in O Fallon, IL

    Consider Similar Space for Sale. We found 22 Spaces matching your search parameters.

    Two-Building Storefront Property
    Two-Building Storefront Property

    O Fallon, IL 62269

    $275,000
    3,036 sqft 0.21 AC lot

    Multiple commercial suites, paved parking, and a separately accessed upper level support a flexible retail and office configuration.

    View details
    Remodeled Office Building with Warehouse
    Remodeled Office Building with Warehouse

    1520 Mascoutah Ave, Belleville, IL 62220

    $490,000
    8,454 sqft

    Remodeled office building with warehouse, ample parking, and generator.

    View details
    Flex Space with Warehouse and Office
    Flex Space with Warehouse and Office

    O Fallon, IL 62269

    Contact for pricing
    10,977 sqft 1.79 AC lot

    B-2 General Business property combines office, showroom, and shop areas with multiple overhead doors and substantial parking.

    View details
    Medical Office Space with Six Exam Rooms
    Medical Office Space with Six Exam Rooms

    5300 W Main St, Belleville, IL 62226

    Contact for pricing
    2,500 sqft

    Well-maintained former dental office with six exam rooms, a reception area, and washer/dryer hookups on W Main Street.

    View details
    Office-Flex Facility with Dock Doors
    Office-Flex Facility with Dock Doors

    65 S 65th St, Belleville, IL 62223

    Contact for pricing
    12,960 sqft

    Office-flex building includes multiple offices and bullpen space plus eight 8’x9’ OHDs.

    View details
    Flexible-Layout Office Building
    Flexible-Layout Office Building

    503 S Illinois Street, Belleville, IL 62220

    $150,000
    0.15 AC lot

    Brick-and-frame property with multiple rooms, a full bath, cellar storage, and Heavy Commercial zoning.

    View details
    Office-Warehouse Flex Building
    Office-Warehouse Flex Building

    1550-1562 Frontage Rd, O Fallon, IL 62269

    Contact for pricing
    20,176 sqft

    Office and warehouse configuration with interstate frontage-road access and available suites.

    View details
    Built-Out Medical Office Suite
    Built-Out Medical Office Suite

    2900 Frank Scott Pkwy W, #960, Belleville, IL 62223

    Contact for pricing
    2,706 sqft

    Well-maintained, fully built-out office with exam, recovery, lab, and multiple private workrooms on two levels.

    View details

    O Fallon, IL Office Spaces Lease Rates & Market Statistics

    Explore 16 Office Spaces for lease in O Fallon, IL on Realmo, a commercial real estate exchange covering the O Fallon area. The current inventory totals 78,867 square feet of properties — an average of ~4,950 SF per listing.

    O Fallon accounts for 48% of the 33 office spaces currently available across St. Clair County, where nearby markets include Fairview Heights and Belleville. By space type, the market includes 12 office units and 4 medical office space listings.

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