Building Permits in Westminster, CA
Check permit requirements for home improvement projects in Westminster. Select a project type below to see local requirements, estimated fees, and how to apply.
Key Exemptions in Westminster
These projects typically don't require a building permit in Westminster:
Cosmetic bathroom updates without electrical or plumbing changes do not require a permit.
Small at-grade patio slabs under 120 square feet are typically exempt from building permits per IRC R105.2 (extended via local amendment). The slab must be at-grade (not more than 30 inches above adjacent grade) and not part of an accessible route.
Freestanding decks not more than 30 inches above grade are exempt from a building permit.
Replacing an existing driveway in the same footprint with no changes to the curb cut is generally exempt from permit requirements.
Replacing a light fixture or outlet does not require a permit.
See all rules by selecting a project type below, or use our free lookup tool for a personalized answer.
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Westminster Building Department
Nearby Cities in California
Permit Guides
Read our in-depth guides for common home improvement projects: