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Lake County, IL Building Safety: Electrical Permits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Code adopted
NFPA 70 NEC, 2023 edition
Effective date
July 12, 2025
Enforcing agency
Planning, Building and Development Dept.
Applies to
Unincorporated Lake County only
Appeal deadline
35 days to Zoning Board of Appeals

Summary

Unincorporated Lake County adopted the 2023 NFPA 70 National Electrical Code with local amendments, and the Planning, Building and Development Department enforces it through electrical permits and inspections.

City-specific rules exist: Waukegan has its own electrical permits rules that differ from Lake County's county-level regulations. If you live in Waukegan, check the city-specific page instead.

Effective July 12, 2025 upon passage of the ordinance codified herein, ... and the NFPA 70 National Electrical Code, 2023, (as amended), be and are hereby adopted by reference in unincorporated Lake County, Illinois pursuant to 55 ILCS 5/5-6002 through 5-6006. ... The Planning, Building and Development Department shall enforce ... the NFPA 70 National Electrical Code, 2023, (as amended), within the Planning, Building and Development Departments areas of jurisdiction.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-15: Supplement contains: Local legislation current through Ord. 26-0618, passed 6-9-2026 | State legislation current through ILCS Pamphlet 2025 #5).

Full Breakdown

Lake County Code § 150.15 adopts the NFPA 70 National Electrical Code, 2023 edition, with local amendments, as the county's electrical code for unincorporated Lake County, effective July 12, 2025. The Planning, Building and Development Department enforces it and issues electrical permits and inspections for wiring, service upgrades and new installations. Amendments in § 150.22 rewrite NEC service-entrance, GFCI-alarm and underground-clearance rules, and add an appeal path to the Zoning Board of Appeals within 35 days of a Building Official decision. This applies only outside incorporated cities and villages such as Waukegan, Highland Park, Gurnee and Libertyville, which enforce their own electrical codes.

Violations & Fines

Working without an electrical permit, or letting a permit lapse under the code's completion deadlines, is a code violation the county enforces under the Administrative Adjudication Ordinance, with appeal of a Building Official decision to the Zoning Board of Appeals within 35 days.

Frequently Asked Questions

Does Lake County require a permit for electrical work?
Yes. The county adopted the 2023 NFPA 70 National Electrical Code by ordinance, and the Planning, Building and Development Department issues electrical permits and inspections under Code § 150.15.
Does this cover Waukegan or Highland Park?
No. Those cities and other incorporated Lake County municipalities enforce their own adopted electrical codes; § 150.15 applies only to unincorporated territory.

Sources & Official References

Other rules in Lake County

All Lake County rules

Compare Lake County to another location·View the Illinois building safety overview

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Electrical Permits in Cities Across Lake County