Permit360
Permit Basics··6 min read

Do I Need a Permit for Solar Panels in LA?

Yes — every rooftop solar PV system in LA requires a building and electrical permit from LADBS. Total permit cost typically $400–$800 for residential installs.

Key takeaways
  • LADBS requires both a building permit and an electrical permit for every rooftop solar PV install.
  • Typical residential solar permit cost: $400–$800 total.
  • Battery storage adds its own Energy Storage System permit and fire-setback review.
  • LADWP interconnection is a separate utility process, required before the system can produce power back to the grid.
  • Rapid Shutdown compliance is required for new installs under the California Electrical Code.
  • Roof structural review is required — older roofs may need reinforcement before solar.
  • Permit timeline: typically 2–4 weeks; California’s SolarAPP+ can issue same-day in some cases.

What permits a solar install actually needs

A typical residential rooftop solar install in LA requires:

  • Building Permit (Solar) — structural attachment review, rapid shutdown compliance
  • Electrical Permit (Solar) — interconnection point, inverter, wiring
  • LAFD Fire Setback Review — roof access pathways and fire setbacks on the roof plane
  • LADWP Interconnection Application — separate utility approval before energization

Battery storage systems (Powerwall, Enphase, etc.) add an Energy Storage System permit on top.

What it costs

For a typical 6–10 kW residential rooftop install (project valuation $15,000–$30,000):

  • Building Permit (Solar): ~$220
  • Plan Check: ~$200
  • Electrical Permit (Solar): ~$120
  • LAFD review: ~$60
  • State surcharges: ~$40
  • Approximate total: $500–$700

Use the Permit360 fee calculator for an exact estimate. For broader LADBS fee context, see how much an LADBS building permit costs in 2026.

Doing solar plus a panel upgrade?

Older 100A electrical service often can’t support solar interconnection plus an EV charger plus regular loads. Use the Permit360 scope guide to map out the bundled permits — solar + panel upgrade + EV charger — and what each one costs.

Why streamlined solar permitting matters

California’s SolarAPP+ is an automated permitting system some LA jurisdictions support. When eligible, it can issue a solar permit same-day with no plan-check review. Eligibility is limited to standard rooftop residential systems within specific parameters — battery storage, ground mounts, and unusual configurations still go through traditional plan check.

Common pitfalls

  • Old roof. Installing solar on a roof with less than 5 years of life left means paying to remove and reinstall the system when the roof is replaced. Re-roof first.
  • Service capacity. 100A panels often can’t carry solar plus EV plus normal household load. A panel upgrade may be required first.
  • Tree shading. Solar contractors sometimes ignore tree-shading impact on production. Get a shade analysis from someone other than the installer.
  • Fire setbacks. LAFD requires 3-foot pathways at roof edges and ridges for firefighter access. Reduces usable roof area.

What happens if you skip the permit

You can’t. LADWP will not interconnect the system without permit verification, which means the system can’t legally export power back to the grid (and you can’t claim net metering). Unpermitted systems also trigger retroactive permitting at 2× fees under LAMC §91.107.5.1 plus the $356 violation under LAMC §98.0421. Full picture: what happens if you remodel without a permit in Los Angeles.

Frequently asked questions

Can my solar installer pull the permit for me?

Yes — and they should. Every legitimate solar installer in LA pulls the LADBS permit as part of the project. If an installer suggests skipping the permit, walk away.

Do I need a permit for a battery storage system?

Yes. Battery storage (Tesla Powerwall, Enphase, etc.) requires its own Energy Storage System permit from LADBS and triggers additional fire-setback review.

How long does LADBS solar permitting take?

2–4 weeks for permit issuance after plans are submitted, in most cases. LA has streamlined solar permitting under California’s SolarAPP+ in some scenarios, which can issue same-day.

Do I need utility approval too?

Yes. LADWP interconnection approval is a separate process from the LADBS building permit. Both are required before the system can be turned on.

What if I install solar without a permit?

You will not get utility interconnection, so the system cannot legally produce power back to the grid. On resale, the unpermitted install triggers retroactive permitting at 2× fees and a $356 violation under LAMC §98.0421.