Naperville, IL Building Safety: Plumbing Permits (2026)
Key Facts
- Primary code
- Illinois State Plumbing Code (890)
- Backup code
- International Plumbing Code
- Permit fees
- Set by City Council, Title 1-9-H
- Rule
- More restrictive code section applies
Summary
Naperville adopts the Illinois State Plumbing Code as its primary plumbing standard, backed by the International Plumbing Code, with permits required and fees set under the city's fee schedule.
For the purposes of supplementing the provisions and regulations contained in this Title, the City hereby adopts by reference the Illinois State Plumbing Code (77 Ill. Adm. Code 890), current edition, issued by the Illinois Department of Public Health, except as to those revisions and changes hereinafter set forth. In addition, the City hereby adopts by reference the International Plumbing Code (hereinafter referred to as the IPC). The Illinois State Plumbing Code shall be the primary plumbing code for the City. Subjects not addressed by the Illinois Plumbing Code will be regulated by International Plumbing Code.
2.There shall be one (1) copy of the Illinois State Plumbing Code and the International Plumbing Code kept on file for public inspection in the office of the Transportation, Engineering, and Development Business Group. (Ord. No. 15-179, § 1, 11-17-2015; Ord. No. 18-032, § 1, 4-3-2018; Ord. No. 18-141, § 2, 12-4-2018; Ord. No. 26-010, § 2, 2-17-2026)
5-1E-2: - AMENDMENTS TO THE ILLINOIS STATE PLUMBING CODE: The Illinois State Plumbing Code, current edition, is hereby amended as it applies within the City of Naperville as follows:
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 101).
Full Breakdown
Under City Code Section 5-1E-1, Naperville adopts by reference the Illinois State Plumbing Code (77 Ill. Adm. Code 890) as the primary plumbing code for the city, supplemented by the International Plumbing Code for subjects the state code doesn't address. Plumbing work must conform to whichever code section is more restrictive. Permit fees for plumbing work are set by City Council and specified in Title 1, Chapter 9, Article H, per Section 5-1E-3, covering all plumbing work in Naperville, DuPage County, Illinois.
Violations & Fines
Plumbing work performed without a permit or that doesn't conform to the adopted codes is enforced by the city's Transportation, Engineering and Development Business Group and can require the work to be opened up and corrected.
Frequently Asked Questions
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Sources & Official References
Other rules in Naperville
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