Rancho Cucamonga, CA Accessory Structures: Carport Rules (2026)

Carports in Rancho Cucamonga are regulated as accessory structures under the California Residential Code and Rancho Cucamonga Development Code. A carport is a roofed, open-sided structure for vehicle storage, and unlike a garage it is not required to have fully enclosed walls. Any carport, regardless of size, requires a Building permit because it involves structural elements (posts, beams, roof framing). Carports must meet the same front setback as the main dwelling, typically 25 feet in R-1 zones, and cannot encroach into required side yard setbacks (often 5 feet). Detached carports in rear yards must meet accessory structure setbacks, generally 5 feet from side and rear property lines. Height is generally limited to 15 feet for detached carports. Open carports do not count as required covered parking in most newer zones but can serve as additional shelter. In the VHFHSZ, carports attached to homes must use ignition-resistant materials under California Building Code Chapter 7A, including non-combustible roofing (Class A) and fire-resistant eaves. HOAs in Terra Vista and the northside communities commonly require architectural review for style, roof pitch, and color matching to the main dwelling. Metal portable awnings and cloth gazebos used as long-term carports can be cited as nuisance unpermitted structures.