Peoria County, IL Building Safety: Plumbing Permits (2026)
Key Facts
- Adopted code
- IL Plumbing Code, IL Admin. Code Part 890 (§ 12-29)
- Permit required
- Before any plumbing work (§ 12-15(h))
- Excluded: septic systems
- Governed by County Code Ch. 19 (§ 12-1(c))
- Excluded: water wells
- Governed by County Code Ch. 23 (§ 12-1(d))
- Maximum fine
- $1,000 per day, petty offense
- Geographic scope
- Unincorporated Peoria County only
Summary
All plumbing design and installation work in unincorporated Peoria County, including sanitary and storm drainage, water supply, and sewage disposal in buildings, must follow the current State of Illinois Plumbing Code, adopted by reference in Peoria County Code Section 12-29.
Sec. 12-29. - Compliance with State of Illinois Plumbing Code required. The current State of Illinois Plumbing Code, Part 890 Illinois Administrative Code, is hereby adopted by reference. ... Any reference to the "International Plumbing Code" shall be read as the "Illinois Plumbing Code, Part 890 Illinois Administrative Code."
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 52).
Full Breakdown
Section 12-29, in Article X of Chapter 12, adopts the current State of Illinois Plumbing Code, Part 890 of the Illinois Administrative Code, by reference for all plumbing design and installation in the unincorporated county. Section 12-10(c) confirms that any reference elsewhere in the adopted codes to the 'International Plumbing Code' is to be read as this Illinois Plumbing Code standard. 1 of the adopted Building Code, requires anyone who intends to install, alter, remove, convert, or replace a plumbing system to first apply to the building official and obtain a permit, with the Section 12-11 fee paid before issuance.
' This chapter applies only in the unincorporated areas of Peoria County under Section 12-1(a); Peoria, Chillicothe, and Bartonville enforce their own plumbing codes within city limits. The Department of Planning and Zoning, headed by the Director of Planning and Zoning, administers permits and inspections.
Violations & Fines
Doing plumbing work without a permit, or in violation of the adopted Illinois Plumbing Code, is a petty offense under Peoria County Code Section 12-6(a), punishable by a fine of up to $1,000, with each day the violation continues counted as a separate offense. The building official can post a notice of violation under Section 12-12 and issue a stop-work order, and the county can pursue enforcement through the State's Attorney's office or its Code Hearing Unit.
Frequently Asked Questions
What plumbing code applies in unincorporated Peoria County?
Does the county's plumbing rule cover my septic system?
What about drilling a new water well?
What happens if I do plumbing work without a permit?
Sources & Official References
Other rules in Peoria County
Compare Peoria County to another location·View the Illinois building safety overview
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