Do I Need A Permit?

Do I Need a Permit to Install Solar Panels in Los Angeles?

LADBS solar permit requirements for residential and commercial PV systems in Los Angeles, CA.

Solar Panel Permits in Los Angeles — Overview

Yes — solar panel installations in Los Angeles require permits from the Los Angeles Department of Building and Safety (LADBS) before installation begins. A Los Angeles solar permit (also called a photovoltaic or PV permit) ensures that your solar system is structurally sound, electrically safe, and compliant with the California Electrical Code, the Los Angeles Building Code, and fire safety requirements.

In addition to the LADBS permit, grid-connected solar PV systems require formal approval from the local utility — LADWP for most of Los Angeles, or Southern California Edison (SCE) for some areas. The system cannot begin operating until both LADBS gives final inspection approval and the utility issues Permission to Operate (PTO). Zermit AI guides Los Angeles homeowners and solar contractors through the complete permit and approval process.

Solar Projects That Require a Permit in Los Angeles

• Rooftop solar PV system installation on a residential property
• Rooftop solar PV installation on a commercial or multi-unit residential building
• Ground-mounted solar panel array installation
• Solar water heating system installation
• Battery energy storage system (ESS) installation associated with a solar project
• Expansion or modification of an existing permitted solar installation
• Installation of EV charging equipment powered by a solar system

Does My Solar System Qualify for an Express Permit?

LADBS offers an expedited express permit process for smaller residential solar PV systems that meet specific eligibility criteria. Systems that qualify must involve crystalline or multi-crystalline PV modules, four or fewer strings (with or without one combiner box that is part of the inverter), and roof-top mounted panels only. Systems meeting these criteria can be permitted more quickly through the LADBS PermitLA online portal without a full plan check.

Larger residential systems and all commercial solar installations typically require a full building and electrical plan check before a permit is issued.

Utility Approval: LADWP Permission to Operate

After LADBS approves your solar installation through final inspection, you must also receive Permission to Operate (PTO) from your utility before the solar system can begin generating power and feeding energy back to the grid. For most Los Angeles properties served by LADWP, the PTO process involves submitting an interconnection application, having a LADWP inspector visit the site to verify system specifications, and receiving confirmation that the net meter has been installed.

It is important to initiate the utility interconnection application early in the process — some homeowners begin the LADWP application at the same time as the LADBS permit application to avoid sequential delays.

Why a Los Angeles Solar Permit Matters

Installing solar panels without the required LADBS permit can result in stop-work orders, fines, requirements to remove and reinstall the system under permit, homeowner's insurance complications, inability to receive utility net metering, and problems during property sale. The LADBS permit and inspection process also ensures your solar system is safely installed — protecting your roof structure and electrical system from damage.

Need Help With Your Permit? Describe your project at app.zermit.ai and Zermit AI will identify which Los Angeles permits may be required, expected timelines, and documentation you will need to prepare.

Looking for a Licensed Contractor in Los Angeles? Explore licensed contractors and remodeling professionals on zermit.ai/contractors who can assist with permitted work and inspections.