Arcadia, CA Solar Energy: Panel Permits (2026)

Section 9103.01.100 of the Arcadia Development Code sets the location and performance standards for solar energy systems outside the small residential rooftop track. In any single-family, accessory dwelling unit, and multifamily dwelling, solar is permitted subject to the standards in subsection C, consistent with the height exceptions in § 9103.01.050.C. The city cannot require approval of any solar permit based on approval by an association as defined in Civil Code § 4080. Ground-mounted and freestanding systems follow the accessory structure setbacks in single-family zones and the main structure setbacks in multifamily zones, sit outside the front yard, and are located to minimize visibility from any public right-of-way.

They cannot exceed six feet in height. Where practical, collector panels go on the roof, flush mounted at the same pitch as the roof or as close as possible, in the location least visible from public streets without reducing operating efficiency. Storage tanks and associated equipment are ground mounted. Hot water storage tanks must sit within an enclosed structure, and in a garage they cannot encroach into the required parking area. Plumbing, electrical, and related fixtures are installed within the structure carrying the collectors and painted to match the roof or building where feasible, or screened from public view.

An array cannot exceed the maximum permitted building height. Water heating systems must be certified by an accredited listing agency under the California Plumbing and Mechanical Code, and electric systems must meet the California Electrical Code, IEEE, and accredited laboratory standards such as Underwriters Laboratories. Under subsection D, the Director can require a Minor Use Permit under § 9107.09 on a finding, based on substantial written evidence, of a specific, adverse impact. Tankless water heaters and solar batteries can encroach 30 inches into required side and rear setbacks.

Small residential rooftop systems skip these standards and follow § 9103.01.110, which limits review to an expedited nondiscretionary check by the Building Official and exempts the application from Site Plan and Design Review.