Height Limits: Downey vs Topanga
How do height limits rules compare between Downey, CA and Topanga, CA?
Downey and Topanga have similar restriction levels.
Downey, CA
Los Angeles County
Downey Municipal Code Article IX (Land Use) regulates fence and wall heights. Fences under 42 inches do not require a building permit. Interior side and rear fences may be up to 7 feet. Front yard and corner visibility restrictions apply.
View full Downey rules →Topanga, CA
Los Angeles County
LA County Title 22 zoning code limits fences in unincorporated areas to 42 inches in front yards and 6 feet in side and rear yards. Fences under 6 feet generally do not require a building permit but may need Regional Planning approval.
View full Topanga rules →Key Facts Comparison
| Fact | Downey | Topanga |
|---|---|---|
| Code Section | Art. IX, Ch. 3 | - |
| No Permit Needed | 42 inches or less | - |
| Side/Rear Max | 7 feet | - |
| Front Yard Max | 42 inches | - |
| Commercial Screen | 7 feet minimum | - |
| Front Yard | - | 42 inches max |
| Side/Rear Yard | - | 6 feet max |
| Permit Required | - | Over 6 feet |
| Under 6 Feet | - | No building permit |
| Review By | - | Regional Planning |
Highlighted rows indicate differences between cities.
Downey FAQ
How tall can a fence be in Downey?
Interior side and rear yard fences may be up to 7 feet. Front yard fences are limited to 42 inches. Fences 42 inches or less do not require a building permit.
Do I need a permit for a fence in Downey?
Fences 42 inches (3.5 feet) or less do not require a building permit. Taller fences require permits from the Building & Safety Division.
Topanga FAQ
How tall can a fence be in unincorporated LA County?
Front yard fences are limited to 42 inches. Side and rear yard fences can be up to 6 feet. Fences over 6 feet need a building permit from Public Works.
Do I need a permit for a fence in unincorporated LA County?
A building permit is not required for fences under 6 feet, but you may need approval from the Department of Regional Planning depending on the fence location relative to setback lines.
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