Orange County, CA Fence Regulations: Material Restrictions (2026)

Section 7-9-64, "Fences, walls, and hedges," regulates every fence, wall, retaining wall, sound attenuation wall and screen in the unincorporated county, in addition to whatever the underlying zoning district requires. Subsection (b), "Setback areas bordering streets," sets the front-yard rules: solid fencing tops out at three and one-half feet for the first twenty feet of setback depth, open fencing and pilasters may reach five feet, and paragraph (3) adds the material restriction at issue here: "Fences located within a front setback shall not use chain link fencing." The prohibition is not qualified by any permit or district exception, unlike the height limits around it, which the Director or Zoning Administrator can modify through a Site Development Permit or Use Permit under subsection (f).

Height is measured from the base of the fence to the top on whichever side, interior or exterior, is greater, per the section's opening paragraph and Figure 7-9-64. Away from street frontages, subsection (c) allows six-foot fencing in side and rear setbacks not adjoining a street, rising to eight feet where an adjoining lot sits higher than the fence base. Corner-lot and driveway sightlines are separately capped at three and one-half feet within defined triangular areas at subsections (d) and (e). Fences inside an approved tract map that were part of the tract's initial development are exempt from Section 7-9-64 entirely. The chain link ban applies only to fences within the unincorporated county; Anaheim, Irvine and Orange County's other incorporated cities set their own front-yard fencing material standards.