Advertise
    Ottawa, IL
    Office

    Ottawa, IL Office Spaces for Sale

    Notify Me
    List
    Map
    Naplate, IL Marseilles, IL Wedron, IL Grand Ridge, IL Utica, IL Oglesby, IL La Salle, IL Seneca, IL
    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
    View details
    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
    View details
    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.

    View details
    See hot listings in Ottawa

    Scored against comparables nationwide. These are worth a look.

    Scored against comparables nationwide. These are worth a look.

    Cap Rate available after sign in
    Est. NOI available after sign in
    Local Demand available after sign in
    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.

    View details
    Multi-Suite Office Building
    Multi-Suite Office Building

    612 Court St, Ottawa, IL 61350

    $399,000

    Private offices have individually controlled heating and air conditioning, with a finished basement providing additional space.

    View details
    Based on your search, we've compiled 17 Potential Opportunities for your consideration. Besides 5 Active listings in Ottawa, IL, we suggest exploring several alternatives: 4 properties in Nearby Cities, and similar 4 Off-Market properties to explore as potential leads, plus 4 Land Listings that present a potential for development.

    Opportunities in Nearby Cities

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

    Flex Space with Drive-Through Bay
    Flex Space with Drive-Through Bay

    101 Watters Dr, Dwight, IL 60420

    $1,990,000
    17,500 sqft 5.00 AC lot

    Adaptable commercial facility with heated service areas, showroom, offices, paved parking, and access near Interstate 55.

    View details
    Medical Office with Unfinished Basement
    Medical Office with Unfinished Basement

    103 S John Street, Dwight, IL 60420

    $137,500
    0.50 AC lot

    Multiple private rooms, a waiting area, and accessible restrooms support a range of office configurations.

    View details
    Two-Building Office Property
    Two-Building Office Property

    101 & 109 W Church Street, Sandwich, IL 60548

    $195,000
    0.17 AC lot

    Two separate office buildings provide flexible layouts, private parking, and access from Route 34, S. Wolfe Street, and an adjoining alley.

    View details
    Flex Space with Office and Warehouse
    Flex Space with Office and Warehouse

    115 South Wolfe Street, Sandwich, IL 60548

    $279,900
    57 sqft

    Office and warehouse configuration includes private work areas, storage, a kitchenette, and heated and cooled warehouse space.

    View details

    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.

    View details
    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.

    View details
    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.

    View details
    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.

    View details

    Off-Market Properties in Ottawa, IL

    Consider similar Off-Market properties in Ottawa, 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.

    2709 Columbus St
    Restaurants

    2709 Columbus St, Ottawa, IL 61350

    Estimated value: by Request
    35,000 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

    Ottawa, IL Office Spaces Market Trends and Statistics

    Explore 9 office spaces for sale in Ottawa, IL, showcased through 5 active listings on our real estate platform. These investment opportunities span a total of 23,152 square feet of properties for sale, with an estimated market value of $2,796,000.

    Sale prices for office properties in Ottawa, IL start at $399,000, averaging $699,000, and reaching up to $999,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

    List
    Map

    Top Commercial Asset Segments

    Commercial property segments ranked by active listings on the market

    Office Units 5
    Office buildings 4
    Medical Office Space 1

    Demographics Overview

    Population 24K
    Population Growth (5Y) +0.7%
    Median Household Income $77,562
    College Educated 27.7%

    High-Yield Neighborhoods for Investment

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

    Neighborhood Average Price
    61350 $699K

    Taxes & Financing

    Average Loan-to-Value 65.0%

    Listings Trend

    New vs delisted commercial listings in LaSalle County

    New Delisted

    How Realmo verifies these figures

    Need Help?

    Reach out if you need assistance with Realmo tools or have questions about your listings

    Contact Us

    Browse Office Spaces for Sale Near Ottawa, IL

    Popular Searches in Ottawa, IL

    Popular Categories

    Most Searched ZIP Codes in Ottawa, IL

    • 61350
    Why this one?
    Saved
    Reason not saved — we won't ask again

    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!