Santa Ana, CA Accessory Structures: Shed & Carport Rules (2026)

Santa Ana Municipal Code section 41-606 sets the accessory-building setback standards that apply to sheds, detached garages, and other outbuildings in the A1, RE, R1, R2 and R3 residential districts. On an interior lot, an accessory building up to 15 feet in height needs a side and rear yard of at least 3 feet; once it exceeds 15 feet, the side yard grows to 5 feet and the rear yard to 10 feet. If the lot backs or sides onto an alley and the accessory building is a garage, the structure must stay at least 12 feet from the alley's center line, and every garage needs a minimum 20-foot drive clearance between the entrance and the property line abutting the street so a parked car doesn't block the right-of-way.

Corner-lot rules differ: an accessory building may sit as close as 10 feet to the lot line on the street side, while the same height-based rear and side setbacks from subsection (a) still apply. On a reversed corner lot, an accessory building in the required rear yard cannot extend past the required front-yard line of the lot behind it, and where a rear lot line doubles as the side lot line of a key lot, the accessory building must stay at least 5 feet from that line.

Homeowners who can't meet these numbers outright have two administrative options. Under section 41-608(c), the zoning administrator may authorize up to a 10 percent reduction in a required side, front, or rear yard as part of a written administrative determination. For larger relief, section 41-632(a)(3) allows a minor exception application for a waiver of up to 20 percent of the minimum yard dimension, filed with the planning department. Section 41-606 was last amended by Ordinance No. NS-2710 in 2006, updating the original 1968 accessory-building standards.