Linn County, IA Building Safety: Plumbing Permits (2026)
Key Facts
- Code adopted
- 2024 Uniform Plumbing Code
- Permit expires
- 1 year from issuance
- Renewal trigger
- 180 days suspended work
- Licensing
- State-licensed plumber required
Summary
Unincorporated Linn County plumbing work must follow the state-adopted Uniform Plumbing Code, 2024 edition, covering installation, alteration, and repair of any plumbing system in the county, under a permit issued by the building official.
Except as hereafter modified, that certain plumbing code known as the latest version of the State Plumbing Code; Iowa Administrative Code Rule 641—25.1(105) to 641-25.3(105), and Iowa Administrative Code sub rules 25.4(2) to 25.4(9)"d" adopting and amending the Uniform Plumbing Code 2024 edition which code is hereby specifically incorporated by reference and shall be known as the "Linn County Plumbing Code". The provisions of said Plumbing Code shall be controlling in the erection, installation, alterations, additions, repair, relocation, replacements, maintenance or use of any plumbing system within the corporate limits of the county. (Ord. No. 10-11-2025, § 1, 11-12-2025)
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 16).
Full Breakdown
The county adopted Iowa's state plumbing code, Iowa Administrative Code rules 641, 25.1 through 25.4, adopting and amending the Uniform Plumbing Code, 2024 edition, as the "Linn County Plumbing Code" (§ 105-66). It controls erection, installation, alteration, addition, repair, relocation, replacement, maintenance, and use of any plumbing system it covers. A plumbing permit expires one year from issuance unless tied to a longer approved construction schedule, and work suspended more than 180 days needs a new permit before resuming (§ 105-68(2)). Only a state-licensed plumber may perform regulated plumbing work under a county permit (§ 105-69).
Violations & Fines
Plumbing work performed without a permit or by an unlicensed person is subject to enforcement and penalties under Code of Ordinances Chapter 1, Article II: a county infraction with a civil penalty (§ 105-68(4)).
Frequently Asked Questions
What plumbing code applies in unincorporated Linn County?
How long is a Linn County plumbing permit valid?
Sources & Official References
Other rules in Linn County
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