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    Dekalb County, IL Office Spaces for Sale

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    Chicago, IL Springfield, IL Rockford, IL
    16 results
    Downtown DeKalb Office Building
    $250,000
    0.48 Acres
    Downtown DeKalb Office Building

    155 N 3rd Street, Dekalb, IL 60115

    Five-story office building in downtown DeKalb with on-site parking.
    • Prime downtown DeKalb location, adjacent to the DeKalb Theater and close to amenities.
    • Approximately 30,000 sq. ft. of office space plus a 5,000 sq. ft. basement with drive‑through.
    • On‑site parking for approximately 22 vehicles.
    • Located in a downtown TIF/Redevelopment District, offering value‑add or redevelopment potential.
    • Flexible floorplans adaptable for various uses.
    Updated: May 4
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    DeKalb Commercial Building For Sale
    $229,000
    1,230 SF
    DeKalb Commercial Building For Sale

    129 E Locust Street, Dekalb, IL 60115

    Commercial building in downtown DeKalb, ideal for owner-user or investment.
    • Prime downtown Dekalb location, one block from restaurants, shops, and City Hall.
    • 50% occupied by an established office tenant with a new long‑term lease, providing immediate income.
    • Approximately 1230 sq ft of vacant space available for owner occupancy or additional tenants.
    • Potential to easily convert the building into three units for increased income potential.
    • Full basement with leasing potential for half of the space.
    Updated: Aug 4, 2025
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    DeKalb Mixed-Use Investment Opportunity
    $279,000
    0.19 Acres
    DeKalb Mixed-Use Investment Opportunity

    Mixed-use building in DeKalb's Central Business District.

    217 S 3rd Street, Dekalb, IL 60115

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    Free Standing Commercial Building
    $183,000
    0.14 Acres
    Free Standing Commercial Building

    Commercial building in Sycamore, IL, with parking and storage.

    220 E State Street, Sycamore, IL 60178

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    Upgraded Office Building For Sale
    $235,000
    3,644 SF
    Upgraded Office Building For Sale

    Single or multi-tenant office with upgrades and parking.

    711 N 1st Street, Dekalb, IL 60115

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    Retail/Office Space in Sandwich, Illinois
    $249,900
    2,600 SF
    Retail/Office Space in Sandwich, Illinois

    Retail/office space in high-traffic area with immediate rental income.

    1112 E Railroad Street, Sandwich, IL 60548

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    Refurbished Mixed-Use Property For Sale
    $399,000
    4,000 SF
    Refurbished Mixed-Use Property For Sale

    Fully rented commercial space and two residential apartments for sale.

    201 W Main Street, Genoa, IL 60135

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    Fenced Site with Multiple Buildings
    $1,100,000
    7,140 SF
    Fenced Site with Multiple Buildings

    Three-acre fenced site with warehouse, office, and outbuildings for sale.

    320 W Lincoln Hwy, Cortland, IL 60112

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    Historic Mixed-Use Building in Sycamore
    $1,150,000
    Historic Mixed-Use Building in Sycamore

    Fully leased mixed-use historic building in downtown Sycamore.

    134 W State Street, Sycamore, IL 60178

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    Downtown DeKalb Office Building
    $1,300,000
    15,242 SF
    Downtown DeKalb Office Building

    15,242 SF office building in downtown DeKalb.

    121 W Lincoln Hwy, Dekalb, IL 60115

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    Turnkey Salon with Expansion Potential
    $684,000
    7,200 SF
    Turnkey Salon with Expansion Potential

    Fully improved salon with suite rental income potential.

    2525 Bethany Road, Sycamore, IL 60178

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    Turnkey Salon with Expansion Potential
    $684,000
    7,200 SF
    Turnkey Salon with Expansion Potential

    Fully improved salon with suite rental income potential.

    2525 Bethany Rd, Dekalb, IL 60115

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    Medical/Office Condo Investment Opportunity
    $298,875
    2,391 SF
    Medical/Office Condo Investment Opportunity

    Finished condo leased through 2028 with renewal option.

    1680 Mediterranean Dr, Sycamore, IL 60178

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    Versatile Commercial Investment Opportunity
    $169,000
    Versatile Commercial Investment Opportunity

    Mixed-use property with retail, office, and residential spaces.

    114 N Washington Street, Genoa, IL 60135

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    Versatile Climate-Controlled Steel Building
    Contact for pricing
    22,651 SF
    Versatile Climate-Controlled Steel Building

    3,185 sq ft flex space with loading dock.

    1796 Sycamore Road, Dekalb, IL 60115

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    Medical Office Space Available
    Contact for pricing
    6,570 SF
    Medical Office Space Available

    Medical office suites for lease or sale near Kishwaukee Hospital.

    2570 Hauser Ross Drive, Sycamore, IL 60178

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    Based on your search, we've compiled 25 Potential Opportunities for your consideration. Besides 16 Active listings in Dekalb 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 in Genoa, IL
    $120,000
    0.56 Acres
    Commercial Land in Genoa, IL

    Commercial-zoned land offering various development opportunities in Genoa, Illinois.

    120 Monroe Street, Genoa, IL 60135

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    Commercial Land in Shabbona, Illinois
    $290,000
    4.65 Acres
    Commercial Land in Shabbona, Illinois

    Commercial-zoned land with highway access in Shabbona, Illinois.

    30 Us-30 Highway, Shabbona, IL 60550

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    Prime Corner Lot in Huntley
    $812,000
    1.31 Acres
    Prime Corner Lot in Huntley

    High-visibility commercial land available at Route 47 and Joan.

    Il Rt 47 Highway lot: 1, Huntley, IL 60142

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    Prime Land off Rt 47
    $7,200,000
    11.60 Acres
    Prime Land off Rt 47

    11+ acres of commercial land for sale in Huntley.

    Il Rt 47 Highway lot: 3, Huntley, IL 60142

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    Off-Market Properties in Dekalb County, IL

    Consider similar Off-Market properties in Dekalb 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.

    228 4Th St

    228 4Th St

    Office Spaces
    Value Estimation by Request
    228 4Th St, DeKalb, IL 60115
    View details
    2127 Sycamore Il

    2127 Sycamore Il

    Medical Office Space
    Value Estimation by Request
    2127 Sycamore Il, Sycamore, IL 60178
    View details
    1705 Mediterranean Dr

    1705 Mediterranean Dr

    Medical Office Space • 9,964 SF
    Value Estimation by Request
    1705 Mediterranean Dr, Sycamore, IL 60178
    View details
    1705 Mediterranean Dr

    1705 Mediterranean Dr

    Medical Office Space • 9,964 SF
    Value Estimation by Request
    1705 Mediterranean Dr, Sycamore, IL 60178
    View details
    319 State St

    319 State St

    Office Units • 19,000 SF
    Value Estimation by Request
    319 State St, Sycamore, IL 60178
    View details

    Dekalb County, IL Office Spaces Investment Opportunities Market Analysis

    Explore 21 office spaces for sale in Dekalb County, IL, showcased through 16 active listings on our real estate platform. These investment opportunities span a total of 50,647 square feet of properties for sale, with an estimated market value of $5,179,775.

    Sale prices for office spaces in Dekalb County, IL start at $229,000, averaging $575,530, and reaching up to $1,300,000 — 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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