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    Lasalle County, IL Office Spaces for Sale

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    10 properties
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    Historic Five-Story Office Building
    Updated: Jun 25
    Historic Five-Story Office Building

    628 Columbus Street, Ottawa, IL 61350

    $999,000
    0.57 AC lot
    36,400 total square feet above grade across five floors
    1914 brick masonry and steel‑frame office building with restored period details
    25,640‑square‑foot site measuring 0.57 acres
    150 feet of Columbus Street frontage plus Fox River frontage
    Private asphalt‑paved parking lot accommodating approximately 42 vehicles
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    Flex Space with Loading Dock
    Updated: Oct 31, 2025
    Flex Space with Loading Dock

    1021 Fosse Road, Ottawa, IL 61350

    $699,000
    3.68 AC lot
    3.68‑acre parcel with approximately 18,000 square feet of improvements
    Rear warehouse area offers 15‑foot clearance and a loading dock
    Two large garage doors: 14 x 20 and 12 x 10
    Storefront ceiling height measures 12 feet
    Covered 25 x 200 exterior overhang for outdoor storage
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    Medical Office Building with Loading Dock
    Medical Office Building with Loading Dock

    501 Oakley Avenue, Streator, IL 61364

    $330,000
    1.93 AC lot

    Existing clinical-style improvements include private offices, workstations, a conference room, kitchenette, storage, and separate HVAC systems.

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    See what stands out in LaSalle County

    We check every for-sale listing in the county against comparable properties across the country. Most price about where you would expect. A few are worth a second look.

    We check every listing here. A few are worth a second look.

    Cap Rate available after sign in
    NOI available after sign in
    Local Demand available after sign in
    Flex Space with Loading Dock
    Flex Space with Loading Dock

    1021 Fosse Rd, Ottawa, IL 61350

    $699,000
    17,700 sqft

    Versatile commercial facility combining storefront, warehouse, office, display, and service areas with multiple parking areas.

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    Downtown Mixed-Use Building
    Downtown Mixed-Use Building

    134 Marquette Street, La Salle, IL 61301

    $650,000

    Remodeled street-level commercial space supports retail or office use beneath nine upper-floor apartments.

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    Multi-Unit Flex Space
    Multi-Unit Flex Space

    776 Centennial Dr, Ottawa, IL 61350

    Contact for pricing
    19,492 sqft

    Four distinct units combine shell, office, and powered flex configurations for varied commercial operations.

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    Turn a Listing Into an Investment Snapshot Cap Rate, Potential NOI, Demand score for every listing. Go To Analytics Center
    Nursing Home Property with Ancillary Beds
    Nursing Home Property with Ancillary Beds

    500 6th Street, Mendota, IL 61342

    $1,200,000
    3.08 AC lot

    Healthcare property near hospitals with adaptable interior space and multiple care-use configurations.

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    Mixed-Use Building with Residence
    Mixed-Use Building with Residence

    1819 4th St, Peru, IL 61354

    $140,000

    Two-level property combines commercial space, food-service infrastructure, and an upstairs residence for live-work use.

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    Riverfront Office Building For Sale
    Riverfront Office Building For Sale

    130 East Madison Street, Ottawa, IL 61350

    Contact for pricing
    5,452 sqft

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

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    Freestanding Office Property
    Freestanding Office Property

    341 W Walnut Street, Oglesby, IL 61348

    $89,000

    For sale office property on W Walnut Street in Oglesby, Illinois, with access from Rt 39 via Oglesby exit E.

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    Based on your search, we've compiled 19 Potential Opportunities for your consideration. Besides 10 Active listings in Lasalle County, IL, we suggest exploring several alternatives: similar 5 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 Near Interchange
    Commercial Land Near Interchange

    010 Unytite Drive, Peru, IL 61354

    $75,000
    1.00 AC lot

    Four commercial lots along Unytite Drive in Peru’s industrial and commercial area, with access near a signalized interchange.

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    Commercial Land Near Interchange
    Commercial Land Near Interchange

    012 Unytite Drive, Peru, IL 61354

    $75,000
    1.33 AC lot

    Four commercial lots are available individually or together within Peru’s industrial and commercial area.

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    Commercial Land Near Signalized Interchange
    Commercial Land Near Signalized Interchange

    016 Unytite Drive, Peru, IL 61354

    $75,000
    1.00 AC lot

    Four commercial lots are offered individually or together within Peru’s industrial and commercial area.

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    Commercial Land Near Interchange
    Commercial Land Near Interchange

    018 Unytite Drive lot: 1, Peru, IL 61354

    $75,000
    1.00 AC lot

    One-acre commercial land parcel in a north Peru business area with access to Unytite Drive.

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    Off-Market Properties in Lasalle County, IL

    Consider similar Off-Market properties in Lasalle 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.

    630 Madison St
    Office Spaces

    630 Madison St, Ottawa, IL 61350

    Estimated value:
    by Request
    View details
    628 Madison St
    Office Spaces

    628 Madison St, Ottawa, IL 61350

    Estimated value:
    by Request
    View details
    2709 Columbus St
    Restaurants

    2709 Columbus St, Ottawa, IL 61350

    Estimated value:
    by Request
    35,000 sqft
    View details
    310 Walnut St
    Medical Office Space

    310 Walnut St, Peru, IL 61354

    Estimated value:
    by Request
    12,215 sqft
    View details
    3107 State Route 23
    Office Spaces

    3107 State Route 23, Ottawa, IL 61350

    Estimated value:
    by Request
    11,000 sqft 4.10 AC lot
    View details

    Lasalle County, IL Office Spaces Market Trends and Statistics

    Explore 15 office spaces for sale in Lasalle County, IL, showcased through 10 active listings on our real estate platform. These investment opportunities span a total of 42,644 square feet of properties for sale, with an estimated market value of $4,806,000.

    Sale prices for office spaces in Lasalle County, IL start at $89,000, averaging $600,750, and reaching up to $1,200,000 — 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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