Retaining Walls: Anaheim vs Fullerton
How do retaining walls rules compare between Anaheim, CA and Fullerton, CA?
Anaheim and Fullerton have similar restriction levels.
Anaheim, CA
Orange County
Anaheim exempts retaining walls up to 4 feet from building permits unless supporting a surcharge. Walls visible from public areas must include landscaping per AMC 18.46.110. Height measured from bottom of footing to top.
View full Anaheim rules →Fullerton, CA
Orange County
Fullerton requires building permits for retaining walls over 4 feet in height (measured from the bottom of the footing to the top of the wall). Walls over 4 feet also require engineered plans. Retaining walls combined with fences have combined height limits.
View full Fullerton rules →Key Facts Comparison
| Fact | Anaheim | Fullerton |
|---|---|---|
| Permit Exempt | ≤4 ft, no surcharge | - |
| Landscaping | Required if visible | - |
| Engineer | Required over 4 ft | - |
| Code | AMC 18.46.110.120 | - |
| Permit Threshold | - | Required for walls over 4 ft |
| Engineering | - | Licensed engineer plans for 4+ ft |
| Fence on Wall | - | Combined height limits apply |
| Hillside Areas | - | May need geotechnical report |
| Permits | - | Building Division — (714) 738-6837 |
Highlighted rows indicate differences between cities.
Anaheim FAQ
Do retaining walls need permits in Anaheim?
Walls up to 4 feet (footing to top) without surcharge are exempt. Over 4 feet requires a building permit and licensed engineering.
Do I need to landscape my retaining wall?
Yes, if visible from public rights-of-way, trails, streets, or adjacent residential properties. Must include shrubs, vines, and trees per AMC 18.46.110.
Fullerton FAQ
Do I need a permit for a retaining wall in Fullerton?
Retaining walls over 4 feet in height (from footing to top) require a building permit and engineered plans. Walls 4 feet or under may be exempt if they do not retain a surcharge.
Can I put a fence on top of a retaining wall in Fullerton?
Yes, but the combined height of the retaining wall and fence is measured from the lower finished grade and must comply with zoning district fence height limits.
Do hillside retaining walls have extra requirements?
Yes. Retaining walls in hillside areas of northern Fullerton may require geotechnical investigations and drainage plans in addition to standard building permits.
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