Auburn, WA Fence Regulations: Fence Permit Requirements (2026)
Key Facts
- Permit trigger
- Fence height over 84 inches
- Fence-on-wall permits
- May be required, ACC 18.31.020(B)(5)
- Retaining wall exception
- Permit still needed if trees/surcharge
- Governing sections
- ACC 18.31.020(B); 18.31.025(C)(4)
- Gate access rule
- Must provide vehicle refuge area
Summary
Auburn requires a building permit for any fence exceeding 84 inches in height under ACC 18.31.020(B)(3). Fences built on top of a retaining wall may also need a permit, and a permit may still be required for shorter walls if landscape features could impact the structure.
3. Building permits are required for fences exceeding 84 inches in height. 4. The addition of lattice, trellis, and other similar features of a fence shall count towards the overall height and opaqueness of a fence. 5. If a fence sits upon or is elevated by a retaining wall, the height of the fence is measured from the base of the retaining wall. Building permits may be required for fences erected on retaining walls.
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 7023, passed July 6, 2026).
Full Breakdown
020(B)(3) sets a bright-line trigger for when a fence needs a building permit in Auburn: any fence exceeding 84 inches in height. 020(C). 020(B)(5), if a fence sits upon or is elevated by a retaining wall, its height is measured starting from the base of the retaining wall, not the fence's own base, so a shorter fence on top of a tall wall can still cross the 84-inch line and require a permit. 025(C)(4) if trees or other landscape features could impact the wall, for example through root intrusion, or if the wall will bear a surcharge load. 020(F)(2) requires any locking gate that cannot be opened from the outside to provide emergency access acceptable to the fire marshal.
Violations & Fines
Building a fence over 84 inches without first obtaining a building permit is a code violation enforceable through the city's building division, which can require removal, retroactive permitting with as-built inspection, or modification to bring the fence under the permit threshold or into compliance with approved plans.
Frequently Asked Questions
At what height does a fence in Auburn need a permit?
Does a fence on top of a retaining wall need a permit in Auburn?
Can a short retaining wall in Auburn still need a permit?
Sources & Official References
Other rules in Auburn
Compare Auburn to another location·View the Washington fence regulations overview
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Fence Permit Requirements in Nearby Cities
How other cities in King County handle fence permit requirements.