Fence Requirements: Castro Valley vs San Leandro
How do fence requirements rules compare between Castro Valley, CA and San Leandro, CA?
Castro Valley has fewer restrictions than San Leandro.
Castro Valley, CA
Alameda County
Alameda County Zoning Ordinance generally limits residential front yard fences to 3-4 feet and side or rear yard fences to 6-7 feet, with clear-vision triangles required at driveways and intersections.
View full Castro Valley rules →San Leandro, CA
Alameda County
San Leandro requires a clear sight triangle at corner lots: no fence, hedge, or structure over 3 feet tall within 25 feet of the curb intersection.
View full San Leandro rules →Key Facts Comparison
| Fact | Castro Valley | San Leandro |
|---|---|---|
| Front yard max | 3-4 feet | - |
| Side and rear max | 6-7 feet | - |
| Clear-vision triangle | 3 feet max | - |
| Over max | Variance required | - |
| Agricultural zones | Different standards | - |
| Triangle size | - | 25 ft curb-to-curb |
| Driveway triangle | - | 10 ft |
| Height limit | - | 3 feet |
| Canopy clearance | - | 8 feet |
| Enforcement | - | Public Works + Code |
Highlighted rows indicate differences between cities.
Castro Valley FAQ
What is a clear-vision triangle?
It is a sight-distance area at corners and driveways, typically 25 by 25 feet, where fences and landscaping are limited to 3 feet to ensure driver visibility.
Can I get a taller front yard fence?
Possibly, via a variance or administrative approval if you can show special circumstances, but solid front fences above 4 feet are rarely approved.
San Leandro FAQ
Who enforces this in San Leandro?
San Leandro code enforcement at (510) 577-3394 handles most complaints. Alameda County agencies handle regional issues.
Who enforces this in San Leandro?
San Leandro code enforcement at (510) 577-3394 handles most complaints. Alameda County agencies handle regional issues.
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