Approval Timelines

Solar Panel Permit Approval Timeline in Los Angeles

How long does it take to get a solar permit in Los Angeles? LADBS and LADWP timelines explained.

Los Angeles Solar Permit Approval Timeline Overview

The timeline for getting a solar permit in Los Angeles involves two separate processes: the LADBS permit and inspection process, and the LADWP (or SCE) utility interconnection process. Both must be completed before your solar system can legally begin generating power. Planning both processes in parallel is the most efficient approach.

LADBS Express Permit Timeline for Qualifying Systems

Smaller residential solar systems meeting LADBS express permit eligibility criteria can be submitted and approved online through the LADBS PermitLA portal. When the application is complete and all required documentation is submitted, express solar permits can be approved within a few business days.

• Typical express permit timeline: a few business days
• 100% online through LADBS PermitLA — no in-person appointment required
• Requires complete documentation package submitted at first submission

Full Plan Check Timeline for Larger Systems

Larger residential systems and commercial solar installations that require a full building and electrical plan check typically take longer. Counter Plan Check review for moderate-complexity systems may take 1–5 business days with a scheduled LADBS appointment. Regular Plan Check review for large commercial systems may take 3–6 weeks, with expedited review available at additional cost.

Utility Interconnection Timeline (LADWP Permission to Operate)

After LADBS gives final inspection approval, the LADWP interconnection review process must be completed before your system can operate. LADWP's solar inspection team reviews the system specifications, visits the site to verify installation, and installs the net meter. LADWP PTO timelines vary but typically range from a few weeks to a couple of months after installation is complete.

Initiating the LADWP interconnection application at the same time as the LADBS permit application helps run these processes in parallel and minimizes the total time to system activation.

Fire Department Timeline for Battery ESS

Battery energy storage systems require a separate Fire Department plan check and permit. The LAFD plan check timeline runs independently of LADBS. Submit the ESS documentation to the Fire Department as early as possible to avoid this becoming a bottleneck in your project timeline.

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