Solar panel installation in unincorporated LA County requires permits from Building & Safety. Applications submitted via EPIC-LA. Expedited permitting for small residential rooftop PV systems 10 kW or smaller with combined fee not exceeding $500. Plan check required for all PV systems.
Solar panel installation in unincorporated LA County requires permits from Building & Safety. Under SB 1222, residential rooftop solar permits must be processed within 1 business day for systems meeting standard requirements. The county uses a streamlined solar permitting process with standardized checklists. Permit fees are capped by state law — typically $400-$800 for residential systems. Structural engineering review may be required for older roofs. Ground-mounted systems may require additional zoning review. Net metering (NEM 3.0) through SCE or LADWP allows solar owners to receive credit for excess energy exported to the grid.
Installing solar panels without a permit is a building code violation with fines and retroactive permit requirements (double fees). However, the county cannot deny a compliant solar permit and must process it within 1 business day under SB 1222. Unpermitted systems may not be eligible for utility interconnection or incentive programs.
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Side-by-side rule comparisons with other cities in Los Angeles County.
See how other cities in Los Angeles County handle panel permits.
See how South San Gabriel's panel permits rules stack up against other locations.
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