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Dekalb, IL Office Spaces for Sale

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10 properties
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Five-Story Office Building
Updated: May 4
Five-Story Office Building

155 N 3rd Street, Dekalb, IL 60115

$199,500
0.48 AC lot
Approximately 30,000 sq. ft. across five floors, plus a 5,000 sq. ft. basement
First floor configured for former bank use; office areas occupy floors 2 through 5
Basement includes a drive‑through and functional walk‑in safe
On‑site parking for around 22 vehicles
Fiber installed and central air provided
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Fully Leased Office Investment Property
Updated: Aug 4, 2025
Fully Leased Office Investment Property

129 E Locust Street, Dekalb, IL 60115

$229,000
0.06 AC lot
0.062‑acre office investment building built in 1963
Building is 100% occupied by an office tenant and a salon
Two‑unit setup with potential to reconfigure as three units with three entrances and 3 bathrooms
Dedicated furnaces, air conditioners, and water heaters; gas and electric are separately metered
Full basement: half finished with concrete floor and bathroom; half suited for storage
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Two-Story Bank Building
Two-Story Bank Building

913 S 4th Street, Dekalb, IL 60115

$349,000
9,974 sqft 1.64 AC lot

Office configuration includes private offices and a conference room within an OFFIC-zoned property.

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Five-Story Office Building with Basement
Five-Story Office Building with Basement

155 N 3rd Street, Dekalb, IL 60115

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35,000 sqft

Five-story office building with basement, drive-through, on-site parking, and fiber installed.

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Turn-Key Medical Office Suite
Turn-Key Medical Office Suite

3300 Commerce Drive, Dekalb, IL 60115

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3,712 sqft

Turn-key medical and office space with multiple offices, waiting/reception areas, and ample parking across from Northwestern Kishwaukee Hospital.

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Fenced Flex Space with Yard
Fenced Flex Space with Yard

320 W Lincoln Highway, Cortland, IL 60112

Contact for pricing
1,800 sqft 3.00 AC lot

Three buildings provide heated work areas, offices, mezzanine storage, and outdoor storage capacity on a secured site.

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Medical Office Building with Parking
Medical Office Building with Parking

3301 Resource Parkway, Dekalb, IL 60115

$1,400,000

Medical office suites offer separate entrances, individual metering, and dedicated off-street parking.

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Downtown DeKalb Office Building
Downtown DeKalb Office Building

121 W Lincoln Hwy, Dekalb, IL 60115

Contact for pricing
15,242 sqft

15,242 SF office building in downtown DeKalb.

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Mixed-Use Office and Apartment Building
Mixed-Use Office and Apartment Building

151 N 4th St, Dekalb, IL 60115

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Mixed-use building with vacant apartments and multiple office units, plus basement parking garage and submitted rehab plans.

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Medical/Office Space Available
Medical/Office Space Available

3301 Resource Pkwy, Dekalb, IL 60115

Contact for pricing
1,500 sqft

1500 SF medical/office space for lease near Northwestern Hospital.

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Based on your search, we've compiled 19 Potential Opportunities for your consideration. Besides 10 Active listings in Dekalb, IL, we suggest exploring several alternatives: 4 properties in Nearby Cities, and similar 1 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.

Two-Story Storefront Building
Two-Story Storefront Building

111 Monroe Street, Genoa, IL 60135

$125,000
0.11 AC lot

Commercial space with a kitchen, full bathroom, upper-level area, detached garage, and central air conditioning.

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Refurbished Mixed-Use Property For Sale
Refurbished Mixed-Use Property For Sale

201 W Main St, Genoa, IL 60135

$399,000
1,500 sqft

Fully rented commercial space and two residential apartments for sale.

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Office Building for Sale
Office Building for Sale

1815 Mediterranean Dr, Sycamore, IL 60178

Contact for pricing

For sale office building offering 5,950 SF at 1815 Mediterranean Dr in Sycamore, Illinois.

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Medical Office Space Available
Medical Office Space Available

2570 Hauser Ross Drive, Sycamore, IL 60178

Contact for pricing
6,570 sqft

Medical office suites for lease or sale near Kishwaukee Hospital.

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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 Parcel
Commercial Land Parcel

120 Monroe Street, Genoa, IL 60135

$120,000
0.56 AC lot

Commercially zoned land totaling 0.56 acres, located off the main road in Genoa, IL.

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Commercial Land with Highway Access
Commercial Land with Highway Access

30 Us-30 Highway, Shabbona, IL 60550

$290,000
4.65 AC lot

COMMR-zoned land within the Village of Shabbona includes a commercial well on site.

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Corner Commercial Development Land
Corner Commercial Development Land

2113 IL Route 47, Yorkville, IL 60560

$1,695,000
4.25 AC lot

4.25-acre B-3 zoned corner parcel with major Route 47 frontage for flexible commercial site development.

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Prime Corner Lot in Huntley
Prime Corner Lot in Huntley

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

$812,000
1.31 AC lot

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

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Off-Market Properties in Dekalb, IL

Consider similar Off-Market properties in Dekalb, 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
Office Spaces

228 4Th St, DeKalb, IL 60115

Value Estimation by Request
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Dekalb, IL Office Spaces Market Trends and Statistics

Explore 11 office spaces for sale in Dekalb, IL, showcased through 10 active listings on our real estate platform. These investment opportunities span a total of 67,228 square feet of properties for sale, with an estimated market value of $2,177,500.

Sale prices for office spaces in Dekalb, IL start at $199,500, averaging $544,375, and reaching up to $1,400,000 — 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 6
Office Units 6
Medical Office Space 4

Demographics Overview

Population 42K
Population Growth (5Y) -6.3%
Median Household Income $46,808
College Educated 50.0%

High-Yield Neighborhoods for Investment

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

Neighborhood Average Price
60115 $214.3K

Taxes & Financing

Tax Rate (average for all types) 7.93%
Property Tax per SF $92.14 per SF
Average Loan-to-Value 65.0%

Listings Trend

New vs delisted commercial listings in DeKalb County

New Delisted

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