Fence Regulations in Orange County, CA (2026)

5 county-level rules, plus city-specific rules for 10 cities in Orange County, California.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Orange County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Height Limits

In unincorporated Orange County, fences are capped at 3.5 feet in front setbacks, 6 feet elsewhere, and 3.5 feet in corner visibility triangles.

Orange County Fence Height Limits

Some Restrictions

Orange County Codified Ordinances § 7-9-64

(1)The maximum height of solid fencing shall be three and one-half (3.5) feet within any required front setback area up to a maximum depth of twenty (20) feet....(4)The maximum height shall be six (6) feet within any rear or side setback area (through which no vehicular access is taken) adjoining a street....(e)...the maximum height shall be three and one-half (3.5) feet within the triangular a...

Full ordinance details →Official source ↗

Fence Permit Requirements

In unincorporated Orange County, fences six feet or shorter are exempt from a building permit; taller fences, and any fence required by a project approval condition, need one.

Orange County Fence Permit Rules

Some Restrictions

Orange County Codified Ordinances § 7-1-17

Section 105.2 of Division II of Chapter 1 of the 2025 California Building Code is hereby amended to replace items 1 and 2, and add item 14 as follows: ... (2)Fences not over six (6) feet high. Exception: Walls and fences less than six (6) feet in height which are required as a condition of project approval to have permits.

Full ordinance details →Official source ↗

Neighbor Fence Rules

Shared boundary fences in unincorporated Orange County are governed by California Civil Code Section 841, the Good Neighbor Fence Law. Adjoining owners are presumed equally responsible for the reasonable cost of a boundary fence, and a 30-day written notice is required before charging a neighbor for the work.

Orange County Neighbor Fence Rules

Some Restrictions

California Civil Code § 841 (Good Neighbor Fence Act)

841. (a) Adjoining landowners shall share equally in the responsibility for maintaining the boundaries and monuments between them. (b) (1) Adjoining landowners are presumed to share an equal benefit from any fence dividing their properties and, unless otherwise agreed to by the parties in a written agreement, shall be presumed to be equally responsible for the reasonable costs of constructio...

Full ordinance details →Official source ↗

Retaining Walls

In unincorporated Orange County, front-setback retaining walls are capped at 3.5 feet in height with the exposed face limited to 6 feet; taller walls need a Site Development or Use Permit.

Orange County Retaining Wall Height Limits

Some Restrictions

Orange County Codified Ordinances § 7-9-64(b)(7)

Where the elevation of the street is higher than the front setback area, the maximum height of a retaining wall shall be three and one-half (3.5) feet within any required front setback area and the exposed area of the retaining wall shall be a maximum of six (6) feet.

Full ordinance details →Official source ↗

Material Restrictions

In unincorporated Orange County, chain link fencing cannot be used within the required front setback of a residential lot. Codified Ordinances Section 7-9-64(b)(3) bars it outright there, while a companion rule caps solid front-yard fencing at 3.5 feet and open fencing or pilasters at 5 feet within that same setback.

Orange County Bans Front-Yard Chain Link

Some Restrictions

Orange County Codified Ordinances § 7-9-64(b)(3)

The regulations in this section apply to any type of fence, wall, retaining wall, sound attenuation wall, or screen, in addition to the applicable requirements of the district in which it is located except for fences and walls that are located within the interior of an approved tract map and are part of the initial development of that tract map shall be exempt from these regulations. (b)Setback...

Full ordinance details →Official source ↗