Solar Permits in LA
Installing solar panels in Los Angeles is a popular choice, and LADBS has streamlined the process for most residential systems. Understanding the thresholds and requirements means you could have your permit in just 5 business days instead of waiting months.
The 10 kW Threshold
The most important number for solar express permits is 10 kilowatts. Residential photovoltaic (PV) systems with a total capacity of 10 kW or less qualify for LADBS express permit processing. This covers the majority of home solar installations � a typical LA home installs between 5�8 kW of solar capacity.
Systems over 10 kW require a regular plan check, which adds several months to the timeline. If your proposed system is close to the boundary, our team can help you strategize to stay within express limits.
Energy Storage Systems (ESS)
Battery storage systems (like Tesla Powerwall) can be added to solar installations. When added alongside a qualifying solar system:
- Battery capacity up to 80 kWh (residential) typically qualifies for express processing
- System must be UL-listed
- Installation must follow manufacturer's installation manual
- Must comply with LADBS's Energy Storage System guidelines
What You Need to Apply
For an express solar permit application, you'll typically need:
- Site plan showing panel placement on the roof
- Electrical single-line diagram
- Structural attachment details
- List of equipment (panels, inverter, racking system)
- Utility permission to operate (PTO) coordination documents
Common Issues That Delay Solar Permits
Even for express-eligible systems, incorrect or incomplete documentation causes most delays. Common problems include incomplete electrical diagrams, missing equipment spec sheets, and miscalculating system capacity. Our team handles all of this � contact us to get started.