Hesperia, CA Accessory Structures: Carport Rules (2026)

Hesperia Municipal Code §16.08.007 defines an 'accessory structure' as a structure 50% or more open to the elements — explicitly including covered patios, lattice patios, and partial patio enclosures. A typical post-and-roof residential carport falls in this category. Per §16.20.400, the aggregate accessory structure area on residential and agricultural lots (other than A-2) is capped at 15% of net lot area, separate from and additional to the accessory building area cap. Maximum height for accessory structures is 16 feet under §16.20.415 (agricultural structures like windmills and silos are exempt). Carports do not satisfy Hesperia's required covered parking for single-family homes when the covered parking must be an enclosed garage — review §16.20 Article on residential parking for your zone. Per §16.12.360(E)(10), when a carport is demolished or converted as part of ADU construction, replacement parking is waived. Building permits are required for carports under California Building Code (Title 24) regardless of size if attached to a dwelling or exceeding 120 sq ft.