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Fence Regulations

Fence Regulations in Seattle, WA: What Residents Actually Need to Know

By CityRuleLookup Editorial Team

If you live in Seattle or are thinking about moving there, fence regulations are one of those things you probably won't think about until they affect you directly. Seattle has 2 specific rules on the books covering different aspects of fence regulations, and some of them might surprise you.

Height Limits

Under SMC 23.44.014, fences in single-family zones may be up to 6 ft solid in side/rear yards. Above 6 ft, fences must be predominantly open (50%+ open); total max is 8 ft. Front yard fences: max 4 ft in required setbacks. Fence + retaining wall combined max: 9.5 ft.

Key details: Code: SMC 23.44.014. Side/Rear (Solid): Max 6 ft without permit. Total Max Height: 8 ft (above 6 ft must be 50%+ open). Front Yard: Max 4 ft in required setbacks. Wall + Fence: Combined max 9.5 ft.

First offense: $150 fine. Subsequent violations: $500. SDCI stop-work orders for non-compliant construction.

Material Restrictions

Seattle regulates fence materials through the Seattle Municipal Code. Residential zones allow wood, vinyl, composite, ornamental metal, and masonry. Chain-link is restricted in some front yard situations. Barbed wire is prohibited in residential areas.

Key details: Allowed Materials: Wood, vinyl, composite, ornamental metal, masonry. Chain-Link: Discouraged in single-family front yards. Barbed Wire: Prohibited in residential zones. Authority: SDCI (Dept. of Construction & Inspections).

Non-compliant fence materials may result in a code violation notice from the Seattle Department of Construction and Inspections (SDCI). Correction orders typically provide a compliance deadline before fines are assessed.

The Bottom Line

Seattle's fence regulations rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Seattle is broadly strict or permissive.

All of the above reflects Seattle's municipal code as of our last review. If you need specifics on fines, exemptions, or filing requirements, the detailed ordinance pages linked above have the full breakdown.