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    O Fallon, IL Office Spaces for Sale

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    Swansea, IL Freeburg, IL Smithton, IL
    36 properties
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    Flex Space with Detached Outbuilding
    Updated: Jun 22
    Flex Space with Detached Outbuilding

    5912 N Belt W, Belleville, IL 62223

    $169,000
    1,070 sqft · 0.35 AC lot
    Year built 1953 with vinyl siding and wood flooring
    Central air and forced‑air heating
    Large fenced lot with a driveway for parking
    Multiple large interior rooms that can be adapted for office, showroom, workspace, or operational use
    Large detached outbuilding/garage for warehousing, storage, workshop, vehicle housing, or equipment storage
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    This listing looks promising.

    Here's a quick look at some key insights for

    5912 N Belt W, Belleville, IL 62223

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    • Est. Cap Rate

      5.7%
      NOI ÷ price

    • Est. NOI

      $10K
      Annual

    • Price @ 7% Cap

      $138K
      Suggested

    • Property Type

      Single Family Residence
      Built 1953
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    Multi-Tenant Office Building with Elevator
    Updated: Jun 22
    Multi-Tenant Office Building with Elevator

    120 W Main Street, Belleville, IL 62220

    $800,000
    10,300 sqft · 0.13 AC lot
    Multi‑tenant commercial building in Downtown Belleville, about one block from the courthouse
    Mostly leased with approximately $9,250/month in rental income
    Two small office suites currently available with projected rents of $1,075/month
    Multiple office and commercial spaces with an on‑site elevator
    Brick construction with carpet flooring, forced‑air heating, and central air
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    Multi-Tenant Downtown Commercial Building
    Multi-Tenant Downtown Commercial Building

    100 W Main Street, Belleville, IL 62220

    $550,000
    6,000 sqft · 0.07 AC lot

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

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    Corner Lot with Two Income Buildings
    Corner Lot with Two Income Buildings

    O Fallon, IL 62269

    $275,000
    3,036 sqft · 0.21 AC lot

    Corner lot with two buildings offering multiple leased spaces, including ground-floor retail and a salon across a paved parking area.

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    Historic Mixed-Use Building in Belleville
    Historic Mixed-Use Building in Belleville

    18 E Main Street, Belleville, IL 62220

    $299,000
    3,200 sqft · 0.05 AC lot

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

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    Downtown Office Building with Parking
    Downtown Office Building with Parking

    12 W Lincoln Street, Belleville, IL 62220

    $299,000
    8,744 sqft · 0.11 AC lot

    Downtown Belleville office building with multiple private offices, meeting rooms, and parking for more than 15 vehicles.

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    Two-Story Professional Office Building
    Two-Story Professional Office Building

    O Fallon, IL 62269

    $525,000
    0.17 AC lot

    Two-level brick office building with ADA access, conference space, multiple restrooms, and a walk-out lower level.

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    Mixed-Use Corner Property
    Mixed-Use Corner Property

    O Fallon, IL 62269

    $400,000
    0.35 AC lot

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

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    Flexible Retail and Office Space
    Flexible Retail and Office Space

    626 N 38th Street, Belleville, IL 62226

    $140,000

    Flexible interior layout suitable for retail, office, or service use in a high-traffic Belleville location.

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    Two-Level Refurbished Office Space
    Two-Level Refurbished Office Space

    6 Lebanon Avenue, Belleville, IL 62220

    $56,000
    1,152 sqft · 0.03 AC lot

    Refurbished two-level offices with multiple rooms and a shared bathroom, recently painted and carpeted in a downtown setting.

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    Medical Building with Multiple Suites
    Medical Building with Multiple Suites

    3608 W Main St, Belleville, IL

    $250,000
    6,500 sqft · 0.83 AC lot

    6,500 SF medical building with three suites for sale.

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    Downtown Belleville Office For Sale
    Downtown Belleville Office For Sale

    122 W Main St, Belleville, IL

    $125,000
    0.07 AC lot

    Office space in downtown Belleville with off-street parking.

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    Belleville Medical Office Investment Opportunity
    Belleville Medical Office Investment Opportunity

    4904 W Main St, Belleville, IL

    $475,000
    4,640 sqft · 0.51 AC lot

    Net leased medical office building with lease extension and roof replacement.

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    Belleville Office Building For Sale
    Belleville Office Building For Sale

    1520 Mascoutah Ave, Belleville, IL

    $725,000
    8,454 sqft · 1.29 AC lot

    8,454 SF office building available in Belleville, Illinois.

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    Former Law Office For Sale
    Former Law Office For Sale

    3540 N Belt W, Belleville, IL

    $120,000
    2,716 sqft · 1.01 AC lot

    2,716 SF office space in high visibility location.

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    Medical Office in Copper Bend
    Medical Office in Copper Bend

    2900 Frank Scott Pkwy W, Belleville, IL 62223

    $149,000
    2,030 sqft

    2,030 SF medical office in established office park.

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    O'Fallon Office Building For Sale
    O'Fallon Office Building For Sale

    O Fallon, IL 62269

    $9,100,000
    6,819 sqft

    6,819 SqFt office building in O'Fallon, Illinois.

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    Office Space with Interstate Visibility
    Office Space with Interstate Visibility

    1550-1562 Frontage Rd, O Fallon, IL 62269

    Contact for pricing
    580 sqft · 2.49 AC lot

    Office space for rent with excellent interstate access and visibility.

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    Mixed-Use Investment Property For Sale
    Mixed-Use Investment Property For Sale

    100 Mascoutah Ave, Belleville, IL

    $325,000
    7,888 sqft · 0.18 AC lot

    Mixed-use investment property in downtown Belleville with residential and commercial spaces.

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    Belleville Office Building For Sale
    Belleville Office Building For Sale

    140 Iowa, Belleville, IL

    $250,000
    9,114 sqft · 0.21 AC lot

    9,114 square foot office building in Belleville, Illinois.

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    East Belleville Office/Retail Building
    East Belleville Office/Retail Building

    1820 N Belt E, Belleville, IL

    $140,000
    2,496 sqft · 0.51 AC lot

    2,496 SF office/retail building in East Belleville for sale.

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    East Belleville Office/Retail Building
    East Belleville Office/Retail Building

    1820 N Belt E, Belleville, IL 62221

    $140,000
    2,496 sqft

    Freestanding 2,496 SF office/retail building in East Belleville.

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    Renovated Office Building For Sale
    Renovated Office Building For Sale

    218 W Main St, Belleville, IL 62220

    $1,950,000
    47,942 sqft · 0.89 AC lot

    Two-story office building in historic downtown Belleville, Illinois.

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    Remodeled Office Building with Warehouse
    Remodeled Office Building with Warehouse

    1520 Mascoutah Ave, Belleville, IL 62220

    $725,000
    8,454 sqft

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

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    O Fallon, IL Office Spaces Market Trends and Statistics

    Explore 51 office spaces for sale in O Fallon, IL, showcased through 36 active listings on our real estate platform. These investment opportunities span a total of 236,930 square feet of properties for sale, with an estimated market value of $24,565,000.

    Sale prices for office spaces in O Fallon, IL start at $56,000, averaging $877,321, and reaching up to $9,100,000 — 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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    Top Commercial Asset Segments

    Commercial property segments ranked by active listings on the market

    Office Units 12
    Office buildings 2
    Medical Office Space 1
    Serviced offices 1

    Demographics Overview

    Population 36K
    Population Growth (5Y) +11.0%
    Median Household Income $100,167
    College Educated 74.8%

    High-Yield Neighborhoods for Investment

    Identify O Fallon submarkets with the highest inventory density on the market and evaluate the average listing prices of real estate assets

    Neighborhood Average Price
    62269 $1.9M

    Taxes & Financing

    Average Loan-to-Value 65.0%

    Listings Trend

    New vs delisted commercial listings in St. Clair County

    New Delisted

    Total CRE Inventory on Market (SF)

    Average Property Price per SF

    For-sale pricing trends across core commercial property types in St. Clair County

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    Most Searched ZIP Codes in O Fallon, IL

    • 62269
    • 62220
    • 62223
    • 62221
    • 62226

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