Height Limits: Costa Mesa vs Mission Viejo
How do height limits rules compare between Costa Mesa, CA and Mission Viejo, CA?
Costa Mesa and Mission Viejo have similar restriction levels.
Costa Mesa, CA
Orange County
Costa Mesa limits front setback fences to 3 feet and side/rear fences to 6 feet maximum. Corner lots require fences over 36 inches to be set back 5 feet from the street side property line. Fences exceeding maximums require discretionary review.
View full Costa Mesa rules →Mission Viejo, CA
Orange County
Mission Viejo Municipal Code Section 9.20.015 (General Standards) sets the citywide fence and wall height rules. A fence, wall, or hedge up to six feet may be located anywhere on a parcel except in a traffic safety sight area, a required front setback, or a street-side setback - where the maximum is 42 inches. When ground levels differ between adjoining parcels, the height of a property-line fence is measured from the finished grade of the highest contiguous parcel. Both sides of perimeter walls or fences must be architecturally treated. California Civil Code Section 841 governs cost-sharing of shared boundary fences with adjoining owners.
View full Mission Viejo rules →Key Facts Comparison
| Fact | Costa Mesa | Mission Viejo |
|---|---|---|
| Front Setback | 3 feet maximum (10 ft zone) | - |
| Side/Rear | 6 feet maximum | - |
| Corner Lots | 5 ft setback if over 36 inches | - |
| Over-Height | Discretionary review required | - |
| Permits | Required for fence construction | - |
| Governing Code | - | MVMC Sec. 9.20.015 |
| General Maximum | - | 6 ft anywhere on parcel |
| Front/Street-Side Setback Max | - | 42 inches |
| Traffic Sight Area Max | - | 42 inches |
| Grade Measurement | - | From highest contiguous parcel |
| State Boundary Fence Law | - | Cal. Civ. Code Sec. 841 |
| Code Enforcement | - | 949-470-3000 |
Highlighted rows indicate differences between cities.
Costa Mesa FAQ
How tall can my fence be in Costa Mesa?
Front setback fences are limited to 3 feet. Side and rear fences may be up to 6 feet. Fences exceeding these limits require discretionary review.
What are the corner lot rules?
On corner lots in R2-MD, R2-HD, and R-3 zones, fences over 36 inches must be set back 5 feet from the street side property line for visibility.
Do I need a permit for a fence?
Yes. Building permits are required for fence construction in Costa Mesa. The Planning Division reviews location and materials.
Mission Viejo FAQ
How tall can I build a fence in my Mission Viejo back yard?
Up to six feet. Mission Viejo Municipal Code Section 9.20.015 allows fences, walls, and hedges up to six feet anywhere on a parcel except in a required front setback, a street-side setback on a corner lot, or a traffic safety sight area, where the maximum drops to 42 inches. If your neighborhood is governed by an HOA, the CC&Rs may impose stricter material, color, or view-related standards on top of the city rule.
What is the front yard fence height limit in Mission Viejo?
42 inches. Within a required front setback, a street-side setback on a corner lot, or any traffic safety sight area, fences, walls, and hedges are capped at 42 inches by Section 9.20.015. This protects driver visibility at intersections and driveway approaches. Fences over 42 inches in those areas are a code violation, and the city can require their removal or reduction.
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