Advertise
    O Fallon, IL
    For Lease
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    Space Uses
    • Retail
    • Restaurant
    • Office
    • Coworking
    • Medical Space
    • Automotive
    • Industrial
    • Warehouse
    • Flex
    • Hospitality
    • Sports & Entertainment
    • Specialty
    Rent
    Rent
    $
    $
    Size
    Property Size / SF

    O Fallon, IL Office Units for Lease

    Notify Me
    List
    Map
    Swansea, IL Shiloh, IL Fairview Heights, IL
    19 listings
    Multi-Suite Retail Office Building
    $1,765/Mo
    Multi-Suite Retail Office Building

    O Fallon, IL 62269

    Move-in ready office and retail suites with private restrooms, offices, and ample parking for professional and service uses.
    • Brick commercial building built in 2001 with forced air heating and central air
    • Multiple suites available from approx. 1,200 to 2,400 SF, including a double suite and a highly visible corner suite
    • Lease rates are $14.00–$15.00 per SF annually (NNN); tenants pay utilities
    • Each suite has passed City of O’Fallon inspections (including fire extinguisher servicing) with current occupancy permits
    • Ample parking plus handicap accessibility, with dual front and rear entrances and private restrooms, offices, and reception areas
    Updated: Jun 25
    View details
    Mixed-Use Investment Property For Sale
    $13 SF/Yr
    5,970 SF
    Mixed-Use Investment Property For Sale

    305-309 N Illinois St, Belleville, IL

    Mixed-use property with retail, office, apartments, and warehouse space.
    • Mixed‑use property with multiple income streams from insurance, barbershop, apartments, and warehouse.
    • Value‑add opportunity: lease the vacant 617 SF office/retail suite.
    • Includes 3 additional parcels, expanding the existing parking lot.
    • Two occupied 1 BD/1BA apartments on the second floor provide immediate rental income.
    • Long‑term insurance agency tenant provides stable income.
    Updated: Nov 24, 2025
    View details
    Belleville Office/Warehouse Space Available
    $9 SF/Yr
    12,340 SF
    Belleville Office/Warehouse Space Available

    12,340 SF office/warehouse space for lease in Belleville, IL.

    9480 State Rte 15, Belleville, IL

    View details
    Downtown Belleville Office Space Available
    $16 SF/Yr
    3,450 SF
    Downtown Belleville Office Space Available

    Office suites available in downtown Belleville near courthouse and amenities.

    15 N 1st St, Belleville, IL

    View details
    Furnished Office Space in O'Fallon
    $21 SF/Yr
    14,140 SF
    Furnished Office Space in O'Fallon

    Class A office space available for lease in O'Fallon.

    620 Pierce Blvd, O Fallon, IL

    View details
    Belleville Office Space for Lease
    $10 SF/Yr
    13,144 SF
    Belleville Office Space for Lease

    Professional office suites available with highway visibility and ample parking.

    7650 Magna Dr, Belleville, IL

    View details
    O'Fallon Commercial Space Available
    Contact for pricing
    O'Fallon Commercial Space Available

    Commercial space for rent in O'Fallon, Illinois.

    O Fallon, IL 62269

    View details
    Office Suite with Conference Rooms
    $18 SF/Yr
    12,324 SF
    Office Suite with Conference Rooms

    Office suite featuring conference rooms and a central reception area.

    525 W Main St, Belleville, IL

    View details
    First Floor Office Suite
    $18 SF/Yr
    1,736 SF
    First Floor Office Suite

    First floor office suite with natural lighting and large layouts.

    521 W Main St, Belleville, IL

    View details
    Downtown Belleville Office/Retail Space
    $20 SF/Yr
    1,008 SF
    Downtown Belleville Office/Retail Space

    Office and retail space for lease in historic downtown Belleville.

    23 Public Sq, Belleville, IL 62220

    View details
    Executive Office Suite For Lease
    Contact for pricing
    Executive Office Suite For Lease

    Executive office suite in O’Fallon, IL, near Interstate 64.

    O Fallon, IL 62269

    View details
    Office Space Available For Rent
    Contact for pricing
    5,139 SF
    Office Space Available For Rent

    Office space available for rent, offering 5,139 square feet.

    1 S Church St, Belleville, IL 62220

    View details
    Executive Office Suite For Rent
    $9,000/Mo
    Executive Office Suite For Rent

    Executive office suite in Lakepoint Professional Center available for rent.

    O Fallon, IL 62269

    View details
    Belleville Office Space For Rent
    $16 SF/Yr
    5,146 SF
    Belleville Office Space For Rent

    Office space available in Belleville, Illinois.

    218-222 W Main St, Belleville, IL

    View details
    High-End Office Space Available
    $28 SF/Yr
    6,819 SF
    High-End Office Space Available

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

    O Fallon, IL 62269

    View details
    Renovated Office Space Available
    Contact for pricing
    6,557 SF
    Renovated Office Space Available

    Renovated 6,557 SF office space near downtown Belleville.

    111 W Lincoln St, Belleville, IL 62220

    View details
    Office/Retail Suite in O'Fallon
    $15 SF/Yr
    Office/Retail Suite in O'Fallon

    High visibility suite in a robust, growing corridor.

    O Fallon, IL 62269

    View details
    Belleville Retail Space Available
    $4 SF/Yr
    14,400 SF
    Belleville Retail Space Available

    Retail and office spaces available in Bellevue Park Plaza.

    4600 W Main St, Belleville, IL 62226

    View details
    Renovated Suites with Utilities Included
    $22 SF/Yr
    Renovated Suites with Utilities Included

    Newly renovated suites featuring luxury vinyl plank flooring and fresh paint.

    5312 W Main St, Belleville, IL 62226

    View details
    Based on your search, we've compiled 36 Potential Opportunities for your consideration. Besides 19 Active listings in O Fallon, IL, we suggest exploring alternatives. Similar 17 Properties for Sales.

    Similar Spaces for Sale in O Fallon, IL

    Consider Similar Space for Sale. We found 17 Spaces matching your search parameters.

    Multi-Tenant Office Building with Elevator
    $800,000
    10,300 SF
    Multi-Tenant Office Building with Elevator

    Mostly leased multi-tenant office building with elevator service and two small suites currently available for new occupants.

    120 W Main Street, Belleville, IL 62220

    View details
    Multi-Tenant Downtown Commercial Building
    $550,000
    6,000 SF
    Multi-Tenant Downtown Commercial Building

    Fully leased multi-unit building generating current monthly rental income in a central downtown setting.

    100 W Main Street, Belleville, IL 62220

    View details
    Flex Space with Detached Outbuilding
    $169,000
    1,070 SF
    Flex Space with Detached Outbuilding

    Versatile indoor workspace paired with a detached garage on a sizeable lot for storage, workshop, or operational needs.

    5912 N Belt W, Belleville, IL 62223

    View details
    Historic Mixed-Use Building in Belleville
    $299,000
    3,200 SF
    Historic Mixed-Use Building in Belleville

    Two-story mixed-use building in downtown Belleville's commercial corridor.

    18 E Main Street, Belleville, IL 62220

    View details
    Mixed-Use Corner Property
    $400,000
    0.35 Acres
    Mixed-Use Corner Property

    Corner commercial property with B-1 zoning and frontage along Highway 50 for strong retail or office visibility.

    O Fallon, IL 62269

    View details

    O Fallon, IL Office Units Market Trends and Statistics

    Explore Office Units leasing options in O Fallon, IL with 19 listings featured on our commercial real estate exchange. The current inventory includes 90,612 square feet of properties with an estimated lease value of $973 /Mo.

    Estimated lease rates for Office Units in O Fallon, IL begin at $4 SF/Yr, with an average of $81 SF/Yr and extend to $800 /Mo.
    List
    Map

    Popular Searches in O Fallon, IL

    Popular Categories

    Most Searched ZIP Codes in O Fallon, IL

    • 62269
    • 62220
    • 62226

    Select Neighborhood

    Google sign-in failed. Please try again or use another login method.
    Sign Up Successful!
    You now have access to more from Realmo!