How Long Does a California Solar Permit Take?
Verified review-timeline data, aggregated from each city's own guide, not a statewide estimate
How to read this page
California has no single statewide solar-permit timeline: each city runs its own building department and review process. GridPermit tracks a review-timeline figure for each city where an official source states one, and classifies it one of two ways:
- Same-day (SolarAPP+ or equivalent): the city's source states instant/same-day approval for qualifying projects, typically through an automated code-compliance platform.
- Standard path: the city's source states a specific day-range for manual plan-check review.
A city with no timeline listed below simply hasn't stated one specifically enough for us to record (not necessarily a slow city). See our methodology for the confidence rule behind every figure we publish.
Cities with same-day SolarAPP+ review on file
These cities' own sources confirm instant approval for qualifying projects. Standard-path timelines for non-qualifying projects may still apply and are noted on each city's guide.
Standard-path review ranges (fastest verified examples)
86 cities have a documented standard-path range on file, the fastest verified example is same-day, the slowest is 30 days. Shown below: the 8 fastest verified examples.
- Eastvale0–1 days
- Fairfield0–1 days
- Jurupa Valley0–1 days
- Tulare0–1 days
- Turlock1 day
- Hesperia0–2 days
- Pismo Beach0–2 days
- Beaumont1–2 days
Browse all verified California cities to check one not listed here.
Frequently Asked Questions
How long does a solar permit take in California?
It depends entirely on the city — there's no single statewide timeline. Of the 288 cities GridPermit has independently verified, 173 have a documented review-timeline on file: 87 report same-day review for SolarAPP+-eligible projects, and the rest have a standard-path range that varies by city. See your specific city's guide for its verified figure.
What does 'same-day' review mean?
It means the city has adopted SolarAPP+ (or an equivalent automated review platform) and grants instant approval for projects that qualify — typically standard rooftop residential systems meeting specific size and configuration limits. Projects that don't qualify for automated review (larger systems, non-standard mounting, or cities without the platform) go through a manual plan-check process instead, which takes longer.
Why do standard-path timelines vary so much between cities?
Each California city runs its own building department, with its own staffing levels, queue volume, and review process — there's no centralized state permitting office for solar. A city's verified range reflects what that city's own sources state, not a statewide average.