Permit Requirements: Moorpark vs Simi Valley
How do permit requirements rules compare between Moorpark, CA and Simi Valley, CA?
Simi Valley has fewer restrictions than Moorpark.
Moorpark, CA
Ventura County
Moorpark requires a Zoning Clearance and possibly a Building Permit for fences and walls over 42 inches (3.5 feet). Walls over 3 feet may require engineered footings. Retaining walls require permits regardless of height. Standard fences under the height limit in residential zones do not typically require a permit.
View full Moorpark rules →Simi Valley, CA
Ventura County
Most residential fences under 6 feet in Simi Valley do not require a building permit. Permits are required for fences over 6 feet, masonry or concrete walls, and fences with electrical components such as automated gates.
View full Simi Valley rules →Key Facts Comparison
| Fact | Moorpark | Simi Valley |
|---|---|---|
| Permit Trigger | Fences/walls over 42 inches | - |
| Masonry Walls >3ft | Engineered footing may be required | - |
| Retaining Walls | Check with Building & Safety | Permit if over 4 feet |
| Maintenance | Must be in good repair | - |
| Building & Safety | (805) 517-6272 | - |
| Under 6 Feet | - | No permit needed (wood, vinyl, chain link) |
| Over 6 Feet | - | Building permit required |
| Masonry Walls | - | Permit if over 3.5 feet |
Highlighted rows indicate differences between cities.
Moorpark FAQ
Do I need a permit for a fence in Moorpark?
Fences and walls over 42 inches (3.5 feet) require a Zoning Clearance and may need a Building Permit. Standard residential fences under this height typically do not require a permit.
Do retaining walls need a permit in Moorpark?
All retaining walls should be checked with Building and Safety at (805) 517-6272 regarding permit requirements, regardless of height. Walls over 3 feet may need engineered footings.
What happens if I build a fence without a permit in Moorpark?
You may receive a stop-work order and be required to obtain retroactive permits with penalty fees. Unpermitted walls may need to be removed or reconstructed to meet code.
Simi Valley FAQ
Do I need a permit for a fence in Simi Valley?
Standard wood, vinyl, or chain-link fences under 6 feet do not need a building permit. Masonry walls over 3.5 feet, any fence over 6 feet, and retaining walls over 4 feet require permits.
Where do I get a fence permit?
Apply at the Simi Valley Building Division within Community Development at (805) 583-6800. Plans showing height, materials, and property line setbacks are required.
Do I need a permit for a gate motor?
Yes, fences with electrical components including automated gate motors require a building permit for the electrical work and may need planning review.
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