California permit guides

California sets statewide codes (Title 24), but every city runs its own permit process, forms, fees, and review timelines. These guides explain the general picture and link you to the official building department to confirm specifics.

Cities

Common jobs

All jobs →

Trades

Electrical

Service panel upgrades · Rewires and circuit additions · EV charger installs · Solar / battery interconnection

Plumbing

Water heater replacement · Repipes · Sewer line repair · Fixture and gas line work

HVAC

AC / furnace changeouts · Heat pump installs · Mini-split systems · Ductwork and Title 24 docs

ADU

New detached ADU · Garage or accessory-structure conversion · Junior ADU (JADU) within the existing home · Attached / addition-style ADU

Solar

Rooftop solar PV systems · Battery energy storage (ESS) · Solar + storage retrofits · Main panel upgrades for PV interconnection

Roofing

Full roof replacement (tear-off) · Re-roof / overlay where allowed · Structural sheathing or deck repair · Cool-roof / Title 24 re-roofs

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