Retaining Walls: Burbank vs Topanga
How do retaining walls rules compare between Burbank, CA and Topanga, CA?
Burbank and Topanga have similar restriction levels.
Burbank, CA
Los Angeles County
Retaining walls under 4 ft (bottom of footing to top) are permit-exempt unless supporting a surcharge. Front yard setback allows max 4 ft combined fence/retaining wall height. Only two retaining walls per front yard, min 8 ft apart (6 ft with Director approval). All downslope walls must be screened with vegetation.
View full Burbank rules →Topanga, CA
Los Angeles County
Retaining walls in unincorporated LA County under 4 ft from footing to top are exempt from building permits unless supporting a surcharge. Walls in required yards cannot exceed 6 ft. In coastal areas, retaining walls must be terraced and landscaped with native species before the rainy season (Oct 15-Apr 15).
View full Topanga rules →Key Facts Comparison
| Fact | Burbank | Topanga |
|---|---|---|
| Permit Exempt | Under 4 ft, no surcharge | Under 4 ft height |
| Front Yard Max | 4 ft combined wall + fence | - |
| Max Count | 2 retaining walls in front yard | - |
| Spacing | Min 8 ft apart (6 ft with approval) | - |
| Screening | Vegetation required on downslope face | - |
| Yard Maximum | - | 6 ft in required setbacks |
| Coastal | - | Must terrace and landscape |
| Engineering | - | Soils report for taller walls |
Highlighted rows indicate differences between cities.
Burbank FAQ
Do I need a permit for a retaining wall?
In Burbank, walls over 4 feet typically require a building permit and engineered plans. Shorter walls may be exempt.
How close to the property line can I build a retaining wall?
Setback requirements vary. Check Burbank zoning code for specific distances from property lines.
Topanga FAQ
Do I need a permit for a retaining wall in LA County?
Only if the wall exceeds 4 feet from footing to top. Walls over 4 feet need a building permit and engineered plans from a licensed engineer. Contact Building & Safety at (626) 458-3171.
Can I build multiple short walls instead of one tall one?
Tiered walls with less than the height of the lower wall between them are measured as a single wall for permit purposes. This prevents circumventing the 4-foot permit threshold.
What if my retaining wall is failing?
A failing retaining wall is a safety hazard. Contact Building & Safety at (626) 458-3171 immediately. You may need emergency repairs and a geotechnical evaluation. You are liable for damage to adjacent properties.
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