Yuba County, CA Building Setbacks & Zoning: Lot Coverage Limits (2026)

Lot coverage controls differ by district. In Rural Community districts (Table 11.06.030), Maximum Lot Coverage for the RE and RR districts is 40 percent on parcels less than one acre and 25 percent on parcels one acre or greater, while the Rural Center (RC) instead uses a Maximum Floor Area Ratio (FAR) of 0.5 (lot coverage listed as N/A). Agricultural districts (Table 11.05.030) and the valley Residential districts (Table 11.07.030, RS/RM/RH) do not list a fixed maximum lot-coverage percentage; buildable area there is governed by the required setbacks, density limits and, for multi-family, FAR and parking standards. A key cross-cutting rule from Section 11.19.030 is that accessory structures count toward the maximum lot coverage or floor area ratio permitted on a site, and within the Valley Growth Boundary (excluding agricultural uses) no single accessory structure may exceed the ground-floor area of the primary building. Because coverage is enforced differently across districts, the safest approach is to confirm your parcel's zoning and applicable table with the Yuba County Planning Department before designing additions or accessory buildings.