Fence Requirements: Irvine vs Mission Viejo
How do fence requirements rules compare between Irvine, CA and Mission Viejo, CA?
Irvine and Mission Viejo have similar restriction levels.
Irvine, CA
Orange County
Unincorporated Orange County regulates fences under Title 7, Division 5 (Zoning) of the Codified Ordinances. Front yard fences are limited to 42 inches, side and rear yard fences to 6 feet. Fences must not obstruct sight lines at intersections or driveways.
View full Irvine rules →Mission Viejo, CA
Orange County
Unincorporated Orange County regulates fences under Title 7, Division 5 (Zoning) of the Codified Ordinances. Front yard fences are limited to 42 inches, side and rear yard fences to 6 feet. Fences must not obstruct sight lines at intersections or driveways.
View full Mission Viejo rules →Key Facts Comparison
| Fact | Irvine | Mission Viejo |
|---|---|---|
| Front Yard | 42 inches maximum | 42 inches maximum |
| Side/Rear | 6 feet maximum | 6 feet maximum |
| Sight Lines | 25-ft triangle at intersections | 25-ft triangle at intersections |
| Permit | Not required under 6 ft typically | Not required under 6 ft typically |
| OC Planning | (714) 667-8888 | (714) 667-8888 |
Highlighted rows indicate differences between cities.
Irvine FAQ
How tall can my fence be in unincorporated Orange County?
Front yard fences up to 42 inches, side and rear yard fences up to 6 feet under Title 7, Division 5. Corner lots have sight-line restrictions.
Do I need a permit for a fence?
Standard fences under 6 feet generally do not require a building permit unless they include retaining wall components. Check with OC Planning at (714) 667-8888.
What about fences on hillside lots?
Canyon and hillside properties may have different effective height measurements. Consult OC Planning for slope-adjusted fence height determinations.
Mission Viejo FAQ
How tall can my fence be in unincorporated Orange County?
Front yard fences up to 42 inches, side and rear yard fences up to 6 feet under Title 7, Division 5. Corner lots have sight-line restrictions.
Do I need a permit for a fence?
Standard fences under 6 feet generally do not require a building permit unless they include retaining wall components. Check with OC Planning at (714) 667-8888.
What about fences on hillside lots?
Canyon and hillside properties may have different effective height measurements. Consult OC Planning for slope-adjusted fence height determinations.
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