Question 1

Who is the primary zoning authority in DeKalb County?

Accepted Answer

The primary zoning authority in DeKalb County is the City of DeKalb Planning & Zoning Commission. This body oversees land use decisions, conditional use permits, and data center project approvals within the county.

Question 2

What is the current permitting outlook for data center projects in DeKalb County?

Accepted Answer

Spark's AI Permit Feasibility Score for DeKalb County is mixed — proceed with care. The county has seen a combination of approvals and opposition. This is a general signal — project-specific scoring depends on size, location, and current ordinance status.

Question 3

How often does DeKalb County update its data center zoning code?

Accepted Answer

DeKalb County has a dynamic zoning code — ordinances are updated relatively frequently in response to new project applications, state legislation, or community input. Check back regularly or contact Spark to set up automated alerts.

Question 4

What was the most recent vote on data center in DeKalb County?

Accepted Answer

The most recent vote on record was on 05/18/2026: "Recommended approval of annexation agreement, annexation, rezoning and concept plan for Project Vector (Edged) to accommodate four data center buildings and two electrical substations at Rt. 23 and Keslinger Rd., ~560 acres (Recommended by P&Z 12/1/25)." — outcome: Passed. See the full vote history section below for additional records.

Question 5

What should data center developers know about greenfield and brownfield site selection in DeKalb County?

Accepted Answer

Site type significantly affects data center permitting in DeKalb County. Greenfield development on undeveloped or agricultural land typically requires conditional use permits and environmental review, and may face community opposition around land conversion. Brownfield or previously developed sites can offer faster approvals and lower opposition risk, but may carry remediation requirements. County zoning codes often treat these site types differently with respect to setbacks, buffer requirements, and decommissioning obligations. Contact Spark for a site-specific due diligence assessment.

Question 6

What is the broader data center permitting environment in Illinois?

Accepted Answer

Illinois operates a retail electricity choice market through ComEd, Ameren Illinois, and MidAmerican Energy territories. The state's Adjustable Block Program provides declining block incentives for solar installations. ComEd offers full retail rate 1:1 net metering, while Ameren provides time-of-use based energy credits. The Climate and Equitable Jobs Act (CEJA) has strengthened the state's renewable energy commitments. See the full Illinois state guide for statewide incentives, net metering rules, and interconnection requirements.

Project	Developer	Capacity	Status
Data Center Project A	Confidential	— MW	Permitting
Data Center Project B	Confidential	— MW	Operating
Data Center Project C	Confidential	— MW	Construction
Data Center Project D	Confidential	— MW	Permitting
Data Center Project E	Confidential	— MW	Operating
Data Center Project F	Confidential	— MW	Construction

Data Center zoning, opposition, and authorities in DeKalb County, IL (Updated 2026)

DeKalb County Quick Facts

Data Center requirements in DeKalb County: zoning code and recent changes

Read DeKalb County's zoning ordinances

Recent news, moratoria, and decisions for DeKalb County data center development

Who approves data center projects in DeKalb County?

Active and proposed data center projects in DeKalb County

See every project, vote, and move from local opposition in DeKalb County

Where is data center easiest to permit in Illinois?

Permitting data center in DeKalb County?

Date	Measure	Outcome
05/18/2026	Recommended approval of annexation agreement, annexation, rezoning and concept plan for Project Vector (Edged) to accommodate four data center buildings and two electrical substations at Rt. 23 and Keslinger Rd., ~560 acres (Recommended by P&Z 12/1/25).	Passed
05/18/2026	Approved amendment to Ordinance 2023‑038 to accommodate a 1,750,000 sq. ft. data center in seven buildings (NE corner of Peace and Gurler Roads). Approved 7/22/2024. Vote tallies/names not provided in snippet.	Passed