Napa County, CA Fence Regulations: Height Limits (2026)

18.104.270 - Fences. A. Fence height standards for all districts, except as specified in subsections (C) and (D) below, are as follows: 1. Fences up to a height of four feet are permitted in the designated front yard setback, except that see-through deer fencing up to eight feet is permitted to support agricultural uses. Fences up to eight feet in height are permitted in side and rear yard setbacks. Fences that exceed a height of six feet in a side or rear yard setback area shall be see-through in nature (e.g., deer or other wire fencing, lattice, or chain link) above the six foot level, unless a fence use permit is granted pursuant to subsection (A)(2) below. 2. A fence permit consistent with the requirements of subsection (C) of Section 18.126.060 may be granted by the director to modify the requirements of this section of the ordinance, provided that a need can be demonstrated, due to the unique nature of the parcel or surrounding environment, for the proposed fence design. 3. See-through fences outside of the combined road and yard setbacks may be up to twelve feet in height (this sub-section is to provide for agricultural fences, and special purpose uses, such as, but not limited to, tennis courts). E. For the purposes of this section, fence heights shall be measured from natural grade that exists prior to fence construction.