Dekalb County, IL Office Properties & Spaces for sale

Downtown DeKalb Five-Story Office Building

$275,000

30,000 SF

Downtown DeKalb Five-Story Office Building

155 N 3Rd St, Dekalb, IL 60115

Five-story office building in downtown DeKalb with on-site parking.

Prime downtown location in DeKalb, adjacent to the DeKalb Theater and close to amenities.
30,000 sq. ft. office building with an additional 5,000 sq. ft. basement and drive‑through.
On‑site parking for approximately 22 vehicles.
Flexible floorplans adaptable for various uses.
Located in a downtown TIF/Redevelopment District, offering value‑add or redevelopment potential.

Updated: Feb 2

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Commercial Property in High-Traffic Location

$295,000

0.17 Acres

Commercial Property in High-Traffic Location

101 W Church St, Sandwich, IL 60548

Two-unit commercial property on the busiest road in Sandwich, Illinois.

Prime location on the busiest road in Sandwich with excellent access from Rt 34, side street, and alley.
Two separate buildings offer flexibility for owner occupancy and rental income.
Meticulously maintained interior and mechanicals in both buildings.
Ample parking with freshly sealed and striped lots.
Versatile spaces suitable for various businesses (office, salon, retail, etc.).

Updated: Nov 9, 2025

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$198,000

0.14 Acres

Free Standing Commercial Building

Commercial building near downtown Sycamore with parking and expansion potential.

220 E State St, Sycamore, IL 60178

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$169,000

Versatile Commercial Investment Opportunity

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

114 N Washington St, Genoa, IL 60135

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$390,000

0.07 Acres

Mixed-Use Building in Downtown Hinckley

Two-story brick building with retail/office space and remodeled residential units.

105 E Lincoln Ave, Hinckley, IL 60520

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$229,000

0.06 Acres

DeKalb Commercial Building For Sale

Commercial building in downtown DeKalb, ideal for owner-user or investment.

129 E Locust St, Dekalb, IL 60115

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$299,900

3,644 SF

Prime DeKalb Office Building

Spacious Office, Ample Parking, Updated

711 1St St, DeKalb, IL 60115

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Sycamore Office Building - Great Investment

$299,900

4,560 SF

Sycamore Office Building - Great Investment

Prime Sycamore Office, 4 Suites, 4560 sq ft

1430 Dekalb Ave, Sycamore, IL 60178

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$298,875

12,950 SF

Sycamore Office Condo - 12,950 SF

Prime Medical/Office Space - For Sale or Lease

1680 Mediterranean Dr, Sycamore, IL 60178

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$298,875

2,391 SF

Sycamore Office Condo For Sale

Prime Medical/Office Condo, 2391 SF

1680 Mediterranean Dr, Sycamore, IL 60178

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1,500 SF

DeKalb Medical Office Space For Lease

1,500 SF Medical/Retail Office NNN Lease

3301 Resource Pkwy, DeKalb, IL 60115

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$1,573,333

6,000 SF

Sycamore Medical Office Building

High-Yield Medical Office Investment

1830 Mediterranean Dr, Sycamore, IL 60178

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3,000 SF

Adams Street Mixed-Use Business

Profitable Waterman, IL business for sale

100 Adams St, Waterman, IL 60556

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$756,000

7,200 SF

Sycamore Office/Retail Investment

7,200 SF, High-End Finish, Turnkey

2525 Bethany Rd, Sycamore, IL 60115

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Refurbished Mixed-Use Property For Sale

Fully rented commercial space and two residential apartments for sale.

201 W Main St, Genoa, IL 60135

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Based on your search, we've compiled 21 Potential Opportunities for your consideration. Besides 15 Active listings in Dekalb County, IL, we suggest exploring several alternatives: similar 5 Off-Market properties to explore as potential leads, plus 1 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.

$89,900

0.87 Acres

Commercial Land in Sandwich, Illinois

Commercial land with versatile zoning and utilities in Sandwich, Illinois.

Griswold Springs Rd, Sandwich, IL 60548

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Explore 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

Office Properties & Spaces

Value Estimation by Request

228 4Th St, DeKalb, IL 60115

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2127 Sycamore Il

Medical offices

Value Estimation by Request

2127 Sycamore Il, Sycamore, IL 60178

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1705 Mediterranean Dr

Medical offices • 9,964 SF

Value Estimation by Request

1705 Mediterranean Dr, Sycamore, IL 60178

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1705 Mediterranean Dr

Medical offices • 9,964 SF

Value Estimation by Request

1705 Mediterranean Dr, Sycamore, IL 60178

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319 State St

Office space • 19,000 SF

Value Estimation by Request

319 State St, Sycamore, IL 60178

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Dekalb County, IL Office Properties & Spaces Investment Opportunities Market Analysis

Explore 20 office properties & spaces for sale in Dekalb County, IL, showcased through 15 active listings on our real estate platform. These investment opportunities span a total of 269,419 square feet of properties for sale, with an estimated market value of $4,615,008.

Sale prices for office spaces in Dekalb County, IL start at $198,000, averaging $461,500, and reaching up to $1,573,333 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

Dekalb County, IL Office Properties & Spaces for Sale

Downtown DeKalb Five-Story Office Building

Five-story office building in downtown DeKalb with on-site parking.