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    Ottawa, IL Office Buildings for Sale

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    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
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    Historic Multi-Tenant Office Building
    Updated: Jun 25
    Historic Multi-Tenant Office Building

    628 Columbus Street, Ottawa, IL 61350

    $999,000
    36,400 sqft 0.59 AC lot
    36,400 square feet above grade across five floors
    Built in 1914 with brick masonry and a steel‑frame structure
    Private asphalt parking for approximately 42 vehicles
    150 feet of Columbus Street frontage, with additional Fox River frontage
    Two passenger elevators and interior stair access
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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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    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
    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.

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    Based on your search, we've compiled 8 Potential Opportunities for your consideration. Besides 4 Active listings in Ottawa, IL, we suggest exploring several alternatives: 4 properties in Nearby Cities

    Opportunities in Nearby Cities

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

    Flexible Office Building with Open Areas
    Flexible Office Building with Open Areas

    201 Garden St, Yorkville, IL 60560

    $1,300,000
    9,900 sqft

    All-brick commercial facility with adaptable interiors, accessibility features, substantial electrical service, and on-site parking.

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    Two-Level Mixed-Use Building
    Two-Level Mixed-Use Building

    2 Park Ave W, Princeton, IL 61356

    $259,000
    6,132 sqft

    Brick construction and flexible zoning support commercial or residential use across two levels.

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    Office Building with Skylights
    Office Building with Skylights

    201 Garden Street, Yorkville, IL 60560

    $1,300,000
    1.00 AC lot

    Flexible commercial building with open interiors, multiple entrances, accessibility features, and on-site parking.

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    Brick Mixed-Use Building
    Brick Mixed-Use Building

    2 Park Avenue W, Princeton, IL 61356

    $259,000
    0.17 AC lot

    Two-level brick property with flexible commercial or residential zoning and multiple entrances for adaptable occupancy.

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    Ottawa, IL Office Buildings Market Trends and Statistics

    Explore 4 office buildings for sale in Ottawa, IL, showcased through 4 active listings on our real estate platform. These investment opportunities span a total of 41,852 square feet of properties for sale, with an estimated market value of $2,397,000.

    Sale prices for commercial office buildings in Ottawa, IL start at $399,000, averaging $799,000, 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.

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    Top Commercial Asset Segments

    Commercial property segments ranked by active listings on the market

    Office buildings 5
    Office Units 5
    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

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