Dekalb County, IL Office buildings for sale

Updated: May 4

Two Buildings in Central District

101 & 109 W Church Street, Sandwich, IL 60548

$250,000

1,600 sqft 0.17 AC lot

Two separate buildings on one property, offering flexibility for business use and rental income
Prime location on Rt 34 in Sandwich's Central Business District with high traffic and excellent visibility
Private parking lot with 13 spaces, sealcoated and re‑striped in 2025
Main building (approx. 1,600 sq ft) renovated in 2025 with new flooring, paint, and updated bath; new furnace/AC (2024) and hot water heater (2026)
Second building ('Annex', approx. 700 sq ft) with new central heating and air installed in 2025

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101 & 109 W Church Street, Sandwich, IL 60548

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Est. Cap Rate

8.8%
Above avg (5.9%)
Est. NOI

$22K
Annual
Price @ 7% Cap

$315K
Above asking

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Updated: May 4

Downtown DeKalb Office Building

155 N 3rd Street, Dekalb, IL 60115

$250,000

30,000 sqft 0.48 AC lot

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.

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Free Standing Commercial Building

220 E State Street, Sycamore, IL 60178

$183,000

0.14 AC lot

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

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Two-Story Office Building

101 S Sycamore St, Hinckley, IL 60520

$345,000

10,196 sqft

Two-story office building with a full basement and street parking nearby for flexible workspace use.

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Two-Unit Office Building with Basement

129 E Locust Street, Dekalb, IL 60115

$229,000

0.06 AC lot

Fully leased two-unit office property with separate mechanicals and a full basement, including finished space and storage.

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Downtown DeKalb Office Building

121 W Lincoln Hwy, Dekalb, IL 60115

$1,300,000

15,242 sqft

15,242 SF office building in downtown DeKalb.

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Based on your search, we've compiled 10 Potential Opportunities for your consideration. Besides 6 Active listings in Dekalb County, IL, we suggest exploring several alternatives: 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 St. Charles

St Charles, IL 60174

$999,999

2.05 AC lot

2.05 acre commercial lot near transportation and retail centers.

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Commercial Lot on Eola Road

2234 S Eola Road, Aurora, IL 60503

$475,000

1.06 AC lot

Commercial lot with frontage on Eola Road in Aurora, IL.

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Improved Commercial Corner Lot For Sale

2495 Hafenrichter Road lot: 2, Aurora, IL 60503

$439,000

1.38 AC lot

1.39 acre commercial lot suitable for retail and commercial applications.

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Prime Corner Lot in Carpentersville

Huntley Road lot: 009, Carpentersville, IL 60110

$550,000

2.41 AC lot

2.41 acre corner lot near Randall Road corridor.

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Dekalb County, IL Office Buildings Market Trends and Statistics

Explore 6 office buildings for sale in Dekalb County, IL, showcased through 6 active listings on our real estate platform. These investment opportunities span a total of 57,038 square feet of properties for sale, with an estimated market value of $2,145,000.

Sale prices for office properties in Dekalb County, IL start at $250,000, averaging $536,250, 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.