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

Maximum parcel coverage, called 'lot coverage,' is part of the Site and Structural Dimensions Chart in SCCC 13.10.323 and varies by zone district. Standard single-family R-1 districts and lower-density multifamily RM districts are limited to 40 percent coverage; under the updated chart, small-lot single-family districts (roughly R-1-2.5 to R-1-4) are allowed 45 percent. Coverage tightens on larger and rural parcels: the R-1-16 to under-1-acre district is limited to 20 percent, and the RR (rural residential), RA (residential agricultural), and R-1 over 1 acre districts are limited to 10 percent. The oceanfront RB district is 40 percent. Coverage works alongside floor area ratio (FAR) limits — typically 0.5 in most zones, with higher FAR (0.6-0.7) allowed in the smallest R-1 lots under the updated chart, and no FAR cap in the largest rural districts. For parcels with a designated historic resource, the maximum parcel coverage may be 1.25 times the standard for the zone, consistent with State Office of Historic Preservation guidance. These standards control how much of a lot can be covered by structures and apply within all residential R zone districts except where a variance or specific exception applies.