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Johnson County, IA Building Safety: Electrical Permits (2026)

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

Key Facts

Adopted code
Iowa State Electrical Code, IAC Ch. 661-504
IBC Chapter 27 Electrical
deleted, replaced by state code
Permit issued only to
licensed master electrician or owner-occupant
Energizing before approval
barred under Section K106.5
First-offense infraction penalty
up to $750

Summary

Electrical work in unincorporated Johnson County follows the Iowa State Electrical Code, adopted county-wide under UDO Section 8:6.5. Any installation, alteration or replacement of an electrical system needs a permit from the Zoning Administrator under Section 8:1.27(A)(1), issued only to a licensed master electrician or an owner-occupant of a single-family home.

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

Subject to the amendments described in subsection 8:6.6, the 2021 International Building Code including Appendix K - Administrative Provisions and the 2021 International Residential Code, including Appendix F - Radon Control Methods and Appendix J - Existing Buildings and Structures, the Iowa State Electrical Code - Iowa Administrative Code Chapter 661--504, the Iowa State Mechanical Code - Iowa Administrative Code Chapter 641--61, and the Iowa State Plumbing Code - Iowa Administrative Code Chapter 641--25; are hereby adopted and along with said amendments shall be known collectively as the Johnson County Building Code or the Building Code.

Full Breakdown

6(Y). 27(A)(1) before work begins. 10, that electrical permit can be issued only to a person holding a valid Iowa master electrician's license, a company that employs a full-time licensed master electrician supervising the work, or the owner of an existing owner-occupied single-family home doing the work on that dwelling. Certain minor electrical work is exempt from a separate permit, including portable cord-and-plug appliances, temporary decorative lighting, replacement of current-carrying parts of a switch or contact device with the same rating, and temporary experimental wiring in a laboratory.

6 lets the Building Official authorize a temporary energy connection for testing or under a temporary certificate of occupancy. Fees for the electrical permit follow the same schedule set by the Board of Supervisors that applies to building permits generally, based on the Building Official's valuation of the work.

Violations & Fines

Energizing electrical equipment before the Building Official approves it under Section K106.5 is a code violation, and starting electrical work without the required permit triggers a fee equal to the permit amount under Section 109.4/R108.4. Because the Building Code sits within Chapter 8 of the UDO, an unresolved electrical permit violation can become a County infraction under Section 8:8.3, carrying a civil penalty of up to $750 for a first offense and $1,000 for a repeat offense.

Frequently Asked Questions

What electrical code applies in unincorporated Johnson County?
The county adopted the Iowa State Electrical Code, Iowa Administrative Code Chapter 661-504, as part of the Johnson County Building Code effective January 1, 2022, and deleted the International Building Code's own electrical chapter so the state code controls instead, under UDO Section 8:6.5 and Section 8:6.6(Y).
Who can pull an electrical permit in Johnson County?
Section 105.8/R105.10 limits electrical permits to a person holding a valid Iowa master electrician license, a company employing a full-time licensed master who supervises the work, or the owner of an existing owner-occupied single-family home doing the work on that dwelling.
Can I turn on new electrical equipment before inspection?
No. Section K106.5 bars connecting any electrical system or equipment that needs a permit to a power source until the Building Official approves it, though Section K106.6 allows a temporary connection for testing or under a temporary certificate of occupancy.

Sources & Official References

Other rules in Johnson County

All Johnson County rules

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