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    Williamson County, IL Office Spaces for Sale

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    Chicago, IL Springfield, IL Rockford, IL
    12 results
    Marion Office Building on 2.62 Acres
    $475,000
    5,229 SF
    Marion Office Building on 2.62 Acres

    3309 Water Tower Road, Marion, IL 62959

    Freestanding 5,229 SF office building on 2.62 acres.
    • Large 5,229 sq ft free‑standing building suitable for various uses.
    • Spacious 2.62‑acre lot with private, paved parking.
    • Includes 4 offices, full kitchen, reception area, and large meeting room.
    • Located in an industrial park.
    • Brick construction.
    Updated: Mar 24
    View details
    Established Medical Office Park Property
    $375,000
    2,600 SF
    Established Medical Office Park Property

    404 Rushing Dr, Herrin, IL 62948

    Medical office building for sale in established medical park.
    • Located in an established Medical Office Park, ideal for healthcare‑related businesses
    • Currently under a long‑term lease, providing stable income
    • High visibility location on a frontage road with consistent traffic along Rt 13
    • Functional 2600 sq ft layout designed for medical use, including reception, exam rooms, lab area, and kitchen/lunch room
    • Ample parking with approximately 25 spots for staff and visitors
    Updated: Mar 7
    View details
    Office and Residential Income Property
    $735,000
    8,500 SF
    Office and Residential Income Property

    Investment property with office space and residential income potential.

    805 W DeYoung Street, Marion, IL 62959

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    Versatile Commercial Space on Large Lot
    $499,000
    8,824 SF
    Versatile Commercial Space on Large Lot

    High-visibility commercial space with multiple bays on 3.75 acres.

    1202 S COURT Street, Marion, IL 62959

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    Herrin Office Building For Sale
    $315,000
    2,022 SF
    Herrin Office Building For Sale

    2,022 SF office building with drive-thru, near IL-13.

    401 Rushing, Herrin, IL

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    Versatile Commercial Building in Marion
    $149,000
    1,500 SF
    Versatile Commercial Building in Marion

    Commercial building with flexible space in downtown Marion.

    105 S RUSSELL Street, Marion, IL 62959

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    Route 13 Office Space
    $79,900
    1,300 SF
    Route 13 Office Space

    Well-maintained office space in a high-traffic area.

    310 E DeYoung Street, Marion, IL 62959

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    Commercial Office Property For Sale
    $155,000
    2,100 SF
    Commercial Office Property For Sale

    Commercial office property available for purchase.

    1002 S Division St, Carterville, IL 62918

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    Commercial Property in Carterville, IL
    $125,000
    1,000 SF
    Commercial Property in Carterville, IL

    Commercial property for sale, currently leased to Miracle Ear.

    1004 S Division St, Carterville, IL 62918

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    Mixed-Use Building on Route 13
    $498,000
    3,364 SF
    Mixed-Use Building on Route 13

    Mixed-use building with warehouse, retail, and office spaces.

    1808 CLARK Street, Carterville, IL 62918

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    Versatile Commercial Building Near I-57
    $499,000
    8,550 SF
    Versatile Commercial Building Near I-57

    8550 SF building suitable for office or event center.

    1912 W Rendleman Street, Marion, IL 62959

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    Office/Warehouse Building For Sale
    $449,000
    6,000 SF
    Office/Warehouse Building For Sale

    Office/warehouse building featuring 6,000 SF, bathrooms, and reception area.

    3907 Ernestine Drive, Marion, IL 62959

    View details
    Based on your search, we've compiled 70 Potential Opportunities for your consideration. Besides 12 Active listings in Williamson County, IL, we suggest exploring several alternatives: similar 54 Off-Market properties to explore as potential leads, plus 4 Land Listings that present a potential for development.

    Potential Development Sites for Consideration

    Can't find the perfect fit? These Land listings present an alternative path: the potential to develop a property for your specific goals.

    Important: These AI-suggestions are a starting point, not a guarantee of permitted use. All zoning, permitting, and land use information must be independently verified by you with the appropriate local authorities before making any commitments.

    Commercial Land Ready for Development
    $525,000
    2.00 Acres
    Commercial Land Ready for Development

    High-traffic commercial land suitable for various business uses.

    333 East Sloan Street, Harrisburg, IL 62946

    View details
    Renovated Commercial Building in Cape Girardeau
    $239,900
    2,937 SF
    Renovated Commercial Building in Cape Girardeau

    Renovated commercial building with high visibility in a prime location.

    230 N Sprigg Street, Cape Girardeau, MO 63701

    View details
    Cape Girardeau Commercial Land Opportunity
    $389,000
    10.20 Acres
    Cape Girardeau Commercial Land Opportunity

    7.5-acre commercial lot in prime Cape Girardeau location.

    0 Rear Commercial Street, Cape Girardeau, MO 63703

    View details
    Commercial Lot Ready For Development
    Contact for pricing
    Commercial Lot Ready For Development

    Commercial lot between medical facilities, ready for development in Sparta.

    540 East Broadway, Sparta, IL 62286

    View details

    Off-Market Properties in Williamson County, IL

    Consider similar Off-Market properties in Williamson County, IL. You may contact the owners directly to inquire about their potential intentions to sell. To help you make a strong first impression, we can assist by reaching out to these owners with compelling proposals created using our AI tool.

    812 Skyline Dr

    812 Skyline Dr

    Office Spaces
    Value Estimation by Request
    812 Skyline Dr, Marion, IL 62959
    View details
    1002 Division St

    1002 Division St

    Office Spaces • 2,100 SF
    Value Estimation by Request
    1002 Division St, Carterville, IL 62918
    View details
    521 Park Ave

    521 Park Ave

    Retail properties & Spaces
    Value Estimation by Request
    521 Park Ave, Herrin, IL 62948
    View details
    1520 14Th St

    1520 14Th St

    Office Spaces
    Value Estimation by Request
    1520 14Th St, Herrin, IL 62948
    View details
    3213 Park Ave

    3213 Park Ave

    Office Spaces • 10,200 SF
    Value Estimation by Request
    3213 Park Ave, Herrin, IL 62948
    View details
    Pershing St

    Pershing St

    Office Spaces • 0.65 Acres
    Value Estimation by Request
    0 Pershing St, Energy, IL 62933
    View details
    1110 Ct Ave

    1110 Ct Ave

    Office Spaces
    Value Estimation by Request
    1110 Ct Ave, Marion, IL 62959
    View details
    112 Main St

    112 Main St

    Distribution properties
    Value Estimation by Request
    112 Main St, Marion, IL 62959
    View details
    17902 Route 37

    17902 Route 37

    Office Spaces
    Value Estimation by Request
    17902 Route 37, Johnston City, IL 62951
    View details
    200 Park Ave

    200 Park Ave

    Multifamily properties
    Value Estimation by Request
    200 Park Ave, Herrin, IL 62948
    View details
    109 Lou Ann Dr

    109 Lou Ann Dr

    Office Spaces • 3,992 SF
    Value Estimation by Request
    109 Lou Ann Dr, Herrin, IL 62948
    View details
    2801 17Th St

    2801 17Th St

    Medical Office Space
    Value Estimation by Request
    2801 17Th St, Marion, IL 62959
    View details

    Williamson County, IL Office Spaces Investment Opportunities Market Analysis

    Explore 66 office spaces for sale in Williamson County, IL, showcased through 12 active listings on our real estate platform. These investment opportunities span a total of 50,989 square feet of properties for sale, with an estimated market value of $4,353,900.

    Sale prices for office spaces in Williamson County, IL start at $79,900, averaging $362,825, and reaching up to $735,000 — 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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