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Riverside County, CA Building Safety: Plumbing Permits (2026)

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

Key Facts

Code adopted
2025 California Plumbing Code, in full
Adoption section
Riverside County Code § 15.04.190
No permit needed
Stopping leaks, clearing stoppages only
Permit required
Any pipe or fixture replacement
Applies to
Unincorporated county area only

Summary

Riverside County adopts the 2025 California Plumbing Code in full for unincorporated areas and requires a permit for new plumbing work, though minor leak repairs and stoppage clearing are exempt under the county's building code amendments.

City-specific rules exist: Riverside, Palm Springs, Corona, Menifee, Murrieta, Moreno Valley, and Temecula have their own plumbing permits rules that differ from Riverside County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

Plumbing: 1.The stopping of leaks in drains, water, soil, waste or vent pipe, provided, however, that if any concealed trap...becomes defective and it becomes necessary to remove and replace the same with new material, such work shall be considered as new work and a permit shall be obtained...2.The clearing of stoppages or the repairing of leaks in pipes, valves or fixtures and the removal and reinstallation of water closets, provided that such repairs do not involve or require the replacement or rearrangement of valves, pipes or fixtures.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 84 Update 1).

Full Breakdown

Unincorporated Riverside County adopts the 2025 California Plumbing Code (Title 24, Part 5 of the state Code of Regulations) in its entirety under County Code Section 15.04.190. County amendments to the Building Code's Section 105.2 spell out which plumbing jobs skip a permit: stopping a leak in a drain, water, soil, waste or vent pipe, and clearing stoppages or repairing leaks in pipes, valves or fixtures, including swapping a water closet, as long as no pipe or fixture is replaced or rearranged. Replacing a defective pipe counts as new work needing a permit and inspection, with fees set under County Ordinance No. 671 and Appendix A to Ordinance No. 457.

Violations & Fines

Doing permit-required plumbing work without a permit is enforceable as a misdemeanor, punishable by a fine up to $1,000, up to six months in jail, or both, with each day of continued violation a separate offense.

Frequently Asked Questions

Do I need a permit to fix a leaky pipe in unincorporated Riverside County?
No. Stopping a leak in a drain, water, soil, waste or vent pipe is exempt under County Code Section 15.04.050, unless the pipe itself must be replaced, which then requires a permit.
What plumbing code does Riverside County enforce?
The 2025 California Plumbing Code, adopted in its entirety under County Code Section 15.04.190, effective for the unincorporated county.
Does this apply inside the city of Riverside or Temecula?
No. Incorporated cities including Riverside, Temecula and Palm Springs enforce their own municipal codes; this County Code section only governs unincorporated territory.

Sources & Official References

Other rules in Riverside County

All Riverside County rules

California rules heatmap·Compare Riverside County to another location·View the California building safety overview

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