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

Solano County does not have a dedicated 'carport' ordinance for unincorporated areas; carports are regulated through Chapter 28's residential development and parking standards. The code requires that a two-car enclosed garage accompany each primary dwelling, and parking for required spaces may be located within an enclosed garage, carport, or uncovered area depending on the use. Where a garage is provided, its siding and roofing materials must substantially match the dwelling - a design standard that also guides carport appearance. As a structure, a carport is treated as a residential accessory building and must meet the same placement and setback rules: detached accessory structures generally must be at least 10 feet from property lines and keep at least 10 feet of separation from the main building (30 feet in the W District). The code also addresses what happens when an existing carport or covered parking structure is demolished or converted in connection with an ADU, limiting replacement-parking demands. A building permit is generally required to construct a carport. Because exact setbacks and coverage limits depend on your zoning district, confirm requirements with the Planning Division (707-784-6765) before building.