Permit guide
How Long Do Building Permits Take in California? 2026 Timelines by City and Trade
Real permit timelines for solar, electrical, HVAC, and plumbing permits across California's major cities and counties in 2026. What to expect and how to plan around it.
Real permit timelines for solar, electrical, HVAC, and plumbing permits across California's major cities and counties in 2026. What to expect and how to plan around it.
One of the most common questions California contractors ask when expanding into a new market: how long will permits take? The answer varies significantly — from 2–5 days for streamlined solar in San Diego to 28+ days for complex projects in the Inland Empire. This guide gives you real 2026 timelines based on contractor experience across California's major markets.
Solar permit timelines by region
Region / City
Standard solar
Solar + storage
Notes
City of San Diego
7–14 days
14–21 days
Standard plan: 2–5 days
LADBS
10–21 days
15–28 days
OTC available for qualifying
Bay Area (avg)
7–18 days
12–25 days
Varies by city
Orange County (avg)
10–21 days
14–28 days
Irvine fastest at 7–12
Riverside County (avg)
14–28 days
18–35 days
Corona fastest at 10–18
San Bernardino (avg)
14–30 days
18–38 days
Ontario fastest at 10–18
Sacramento area
7–14 days
12–21 days
Folsom/Roseville fastest
Fresno / Central Valley
7–16 days
12–22 days
Clovis faster than Fresno
Electrical permit timelines
Region
Panel replacement
EV charger (streamlined)
Service upgrade
San Diego
5–10 days
2–5 days
5–10 days
Los Angeles (LADBS)
5–14 days
3–7 days
5–14 days
Bay Area
5–12 days
3–7 days
5–12 days
Orange County
7–14 days
3–7 days
7–14 days
Inland Empire
7–16 days
5–10 days
7–16 days
HVAC permit timelines
Standard HVAC replacement (like-for-like) processes in roughly the same timeframe as electrical permits. Heat pump installations (replacing gas with electric) run 20–35% longer due to Title 24 documentation requirements. Add HERS verification scheduling on top of the permit approval — HERS must happen before the final inspection.
What makes permits faster or slower
Makes permits faster: Complete submittals with all required documentation; standard/common project types; use of streamlined programs where available; electronic submittal where offered; responding to corrections within 24 hours.
Makes permits slower: Missing documentation; non-standard project configurations; paper submittals where electronic is faster; slow correction responses; submitting to the wrong jurisdiction; peak construction season volume.
The discovery lag factor: These timelines assume you find out about approvals and corrections the same day they're issued. If you're checking portals every few days, add your average discovery lag to every timeline above. A 14-day permit with a 3-day discovery lag is effectively a 17-day permit for scheduling purposes.
Planning around permit timelines
The most effective approach: submit permits as early as possible in the project timeline, start utility interconnection applications in parallel with building permits, and use automated permit tracking so you find out about approvals and corrections the same day they happen — not when someone remembers to check the portal.