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    Ottawa, IL Office Buildings for Sale

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    Ottawa Commercial Building Investment Opportunity
    $510,000
    6,400 SF

    Ottawa Commercial Building Investment Opportunity

    227 W Madison St, Ottawa, IL 61350

    Two-story commercial building in Ottawa's historic downtown, near courthouse.

    • 6400 sq ft 2‑story building in historical downtown Ottawa.
    • Located one block from the courthouse and in the Heart of Starved Rock Country.
    • First floor (3200 sq ft) is vacant, offering large offices, conference room, bathrooms and kitchen.
    • Second floor (3200 sq ft) is fully leased.
    • Elevator servicing both first and second floors.
    Updated: Sep 22, 2025
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    Riverfront Office Building For Sale
    Contact for pricing
    5,452 SF

    Riverfront Office Building For Sale

    130 E Madison St, Ottawa, IL 61350

    5,472 SF office building for sale on the river.

    • River front property
    • Boasting 5,472 SF
    Updated: Sep 7, 2023
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    Based on your search, we've compiled 6 Potential Opportunities for your consideration. Besides 2 Active listings in Ottawa, IL, we suggest exploring several alternatives: 4 properties in Nearby Cities

    Explore Opportunities in Nearby Cities

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

    Modern Office Building in Joliet
    $1,325,000
    7,680 SF

    Modern Office Building in Joliet

    7,680 SF office building in thriving Joliet area.

    3601 Mcdonough St, Joliet, IL 60431
    View details
    Joliet Office Building Investment
    $875,000
    0.75 Acres

    Joliet Office Building Investment

    Well-maintained 8,007 SF office building in Joliet, Illinois.

    3230 Executive Dr, Joliet, IL 60431
    View details
    Iconic Grain Elevator Redevelopment Opportunity
    $950,000

    Iconic Grain Elevator Redevelopment Opportunity

    Unique redevelopment project in Plainfield's vibrant downtown corridor.

    14727 S Naperville Rd, Plainfield, IL 60544
    View details
    Charming Log Cabin Commercial Property
    $484,999
    2,800 SF

    Charming Log Cabin Commercial Property

    Unique commercial property with two buildings and modern updates.

    16143 S Lincoln Hwy, Plainfield, IL 60544
    View details

    Ottawa, IL Office Buildings Investment Opportunities Market Analysis

    Explore 2 office buildings for sale in Ottawa, IL on our real estate platform. These investment opportunities span a total of 3,202 square feet of properties for sale, with an estimated market value of $510,000.

    Sale prices for office properties in Ottawa, IL start at $510,000, averaging $510,000, and reaching up to $510,000 — 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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