Projects that DO NOT need a building permit are simple surface (cosmetic) projects; minor repairs and replacements; and minor site improvements or small structures.
These include, but are not limited to, new structures, demolitions, additions, alterations, interior/exterior remodels, running new electrical, water or gas lines, repairs, outdoor kitchens, pergolas, pavilions, decks, carports, garages, docks, pools, foundation repairs, ADUs, and Junior ADUs, solar, energy storage ...
Per the California Residential Code detached accessory structure not exceeding 120 square feet does not require a building permit if there is no plumbing, electrical, and or mechanical equipment. Please note, Sheds and/or Structures under 120 square feet do require a Planning Permit.
Do You Need A Permit To Remodel A Bathroom In California? Yes, permits are required for all aspects of remodeling a bathroom. This includes making any additions or modifications that involve construction, electrical wiring, plumbing structures, and other mechanical processes.
Code Enforcement - Conservation & Development Storage sheds, tool sheds and play houses that have a foot print of less than 120 square feet do not require a building permit however do have other restrictions. .
Types of Projects That May Be Exempt From a Building Permit in California Painting. Floor upgrades. Kitchen remodels. Small drywall projects. Common electrical work. Small outbuildings. Bathroom fixes. Fences.
Building Standards Commission Includes a provision stipulating that every permit shall remain valid if the work on the site authorized by the permit is commenced within 12 months after its issuance.