Building setbacks in unincorporated San Diego County are determined by the Zoning Ordinance based on zoning designation. Front, side, and rear setbacks vary by zone. Residential zones typically require 25-60 ft front, 10-35 ft side, and 25-60 ft rear setbacks depending on lot size and zone.
The County Zoning Ordinance establishes minimum building setbacks for each zoning designation. Setback requirements vary significantly by zone: rural residential zones (RR, SR) generally have larger setbacks than village residential zones (VR). Front setbacks typically range from 25 to 60 feet. Interior side setbacks range from 10 to 35 feet. Rear setbacks typically match front setbacks. Corner lots have different requirements for street-facing sides. Accessory structures may have reduced setbacks. ADUs have specific setback provisions under state law (4-foot side and rear). Variances for setback reductions require demonstrated hardship and approval from the County. Setbacks are measured from the property line to the nearest point of the building.
Building within required setbacks without a variance may result in stop-work orders, required demolition, and fines. Unpermitted encroachments must be resolved before property sale.
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See how San Diego County's setback rules rules stack up against other locations.
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