San Bernardino County, CA Fence Regulations: Height Limits (2026)

San Bernardino County regulates fences in the unincorporated areas through Section 83.06.030 (General Height Limitations) of the Development Code, which sets maximum heights within required setback areas in Table 83-6. For "All other land use zoning districts" (which includes residential zones such as RL, RS, and RM), the maximum is 4 ft in the front and street-side setbacks and 6 ft in the interior side and rear setbacks. Commercial districts allow 4 ft front/street-side and 10 ft interior-side/rear; industrial districts allow 6 ft front/street-side and 10 ft interior-side/rear, but projects adjacent to residential districts must use the "All other" standard. A footnote to Table 83-6 provides that in the RC (Rural Conservation) and RL (Rural Living) districts, open fences may go up to 5 ft in the front and street-side setbacks. Heights above these standards may be allowed by an approved Use Permit, Variance, Tract or Parcel Map, or when required by the County for health and safety. Outside required setbacks (in the buildable interior of a lot), Chapter 83.06 does not impose these setback-area caps. Per Section 83.06.040, fence/wall height is measured from finished grade at the location of the fence; where adjacent parcels differ in grade, height along the property line is measured from the lowest contiguous parcel.