Fence Regulations in Multnomah County, OR (2026)
3 county-level rules, plus city-specific rules for 2 cities in Multnomah County, Oregon.
Verified from official government sources
Height Limits
In unincorporated Multnomah County's Urban Low Density Residential zones, yard fences top out at six feet, dropping to four feet near the front or street-side property line.
Multnomah County Privacy Fence Height
Some RestrictionsMultnomah County Code § 39.4782(F)
A fence, lattice work, screen, wall or similar feature with a maximum height of six feet may be located in any required yard provided, however, that the maximum height shall be four feet if the feature is within 15 feet of a front property line or five feet of a street side property line. (G) Except as provided in the LF Base zone, chimneys, antennae, or similar structures may exceed height max...
Retaining Walls
In unincorporated Multnomah County, a fence or retaining wall over six feet tall must be set back from every lot line by a distance at least equal to its own height.
Multnomah County Retaining Wall Setback
Some RestrictionsMultnomah County Code § 39.4245(C)(1)
Notwithstanding the Minimum Yard Dimensions, but subject to all other applicable Code provisions, a fence or retaining wall may be located in a Yard, provided that a fence or retaining wall over six feet in height shall be setback from all Lot Lines a distance at least equal to the height of such fence or retaining wall.
Material Restrictions
Fences enclosing a marijuana business in unincorporated Multnomah County cannot use plastic sheeting, knitted polyethylene, woven polypropylene, or vinyl coated polyester, and cannot be electrified or carry barbed wire, razor wire, or anti-climb spikes.
Multnomah County Marijuana Business Fence Materials
Some RestrictionsMultnomah County Code § 39.8500(E)(7)(b)-(c)
(b) Shall not be electrified, use barbed wire, razor wire, concertina coils, anti-climb spikes or any other similar security feature designed to discourage ingress through the potential of causing bodily harm. (c) Shall not include plastic sheeting, knitted polyethylene, woven polypropylene, vinyl coated polyester, or similar materials. (d) No variance, adjustment, deviation or any other modifi...
Fence Regulations by City in Multnomah County
2 cities in Multnomah County have their own fence regulations rules. Each link goes to that city's dedicated page with code citations.
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