Installing solar panels is an exciting step toward clean energy and long-term savings—but before the installation begins, there’s an important administrative step you can’t skip: securing a solar permit. If you’re planning a solar project, understanding the solar permit in LA County process can save you time, money, and unnecessary stress.
LA County has clear but detailed permitting requirements designed to ensure safety, code compliance, and system performance. This guide walks you through the entire process step by step, in plain language, so you know exactly what to expect.
Why a Solar Permit Is Required in LA County
A solar permit ensures that your system meets local building, electrical, and fire safety codes. LA County reviews solar projects to protect homeowners, utility workers, and first responders. Without an approved solar permit in LA County, you risk fines, project delays, or being forced to remove the system entirely.
Permits are required for both residential and commercial solar installations, whether roof-mounted or ground-mounted.
Step 1: Confirm Local Jurisdiction Requirements
LA County includes multiple cities, and some have their own building departments. Before applying, confirm whether your property falls under:
- Los Angeles County Building and Safety (LACBS), or
- A city-specific authority (e.g., Long Beach, Pasadena, Santa Monica)
Each jurisdiction follows California codes but may have slight variations in documentation or fees related to a solar permit in LA County.
Step 2: Prepare the Required Documents
A complete application package speeds up approval. Most jurisdictions require:
- Site plan showing property boundaries and solar panel placement
- Roof layout and structural details
- Electrical single-line diagram
- Manufacturer spec sheets for panels, inverters, and mounting systems
- Structural calculations (if required)
Working with an experienced solar contractor can help ensure these documents are accurate and compliant, reducing back-and-forth during the solar permit in LA County review process.
Step 3: Submit the Solar Permit Application
Many LA County jurisdictions use online portals for permit submission. Depending on the project size and complexity, you may be eligible for expedited or over-the-counter review.
During submission, you’ll provide:
- Project valuation
- System size (kW)
- Contractor license information
- Permit fees
Fees vary by jurisdiction and project scope but are typically modest compared to the overall system cost.
Step 4: Plan Check and Review
After submission, the building department reviews your application for code compliance. This includes checks for:
- Structural integrity of the roof
- Electrical safety and grounding
- Fire access and setbacks
If corrections are needed, you’ll receive comments to revise and resubmit. Addressing these promptly keeps your solar permit in LA County moving forward without delays.
Step 5: Permit Approval and Issuance
Once all requirements are met, the permit is approved and issued. This is your official authorization to begin solar installation. Starting construction before approval is a common mistake and can result in penalties.
At this stage, keep a copy of your approved solar permit in LA County on-site during installation, as inspectors may request it.
Step 6: Solar System Installation
With the permit in hand, your contractor can install the solar panels, inverters, wiring, and mounting equipment according to the approved plans. Any changes during installation must be reported and may require permit revisions.
A clean, code-compliant installation makes the next step—inspection—much easier.
Step 7: Final Inspection
After installation, schedule a final inspection with the local authority. The inspector verifies that the system matches the approved plans and meets all safety codes.
If the system passes, the permit is finalized. If issues are found, corrections must be made before approval. Passing inspection is a critical milestone in completing your solar permit in LA County process.
Step 8: Permission to Operate (PTO)
The final step is utility approval. After inspection sign-off, documentation is sent to your utility company (such as LADWP or SCE). Once they approve, you’ll receive Permission to Operate (PTO), allowing your system to connect to the grid and start generating energy.
Only after PTO can you legally turn on your solar system—even if the solar permit in LA County has already been finalized.
Common Mistakes to Avoid
- Submitting incomplete plans
- Using non-certified equipment
- Starting installation before permit approval
- Ignoring local fire setback requirements
Avoiding these mistakes helps ensure a smooth and fast solar permitting experience.
Final Thoughts
Navigating the solar permit in LA County process may seem complex, but breaking it into clear steps makes it manageable. With proper planning, accurate documentation, and the right professionals, most permits are approved without major issues.
Going solar is a smart investment—for your wallet and the environment. Understanding the permitting process upfront helps you get there faster, with confidence and peace of mind.
