Mono County, CA Accessory Structures: Carport Rules (2026)

Mono County does not publish a dedicated carport ordinance. A carport is a roofed accessory structure and is regulated through the development standards of the property's land use designation, administered by the Community Development Department. The framework set out in General Plan Section 16.050.A for residential construction applies: structures must conform to the height, setback, lot coverage, snow storage, and other development requirements of the designation. In Mono County's snow climate, the location and roof design of a carport are influenced by snow-storage and snow-shedding requirements, and a building permit is generally required for a permanent roofed structure under the adopted California Building Code. On the parking side, when a carport or other covered space serves an accessory dwelling unit, Section 16.050.D establishes that required parking is one space for a one-bedroom unit and two spaces for units of two or more bedrooms (no parking is required for a studio), and that ADU parking is waived entirely in five situations, including when the unit is within one-half mile of public transit, in a designated historic district, part of an existing structure, where on-street permits are unavailable to the occupant, or within one block of a car-share vehicle. Because no carport-specific size or setback figures are published by the County, owners should confirm requirements with Community Development before building.