Wildfire Zones: Midway City vs Mission Viejo
How do wildfire zones rules compare between Midway City, CA and Mission Viejo, CA?
Midway City and Mission Viejo have similar restriction levels.
Midway City, CA
Orange County
Unincorporated Orange County contains extensive Very High Fire Hazard Severity Zones (VHFHSZ) as designated by CAL FIRE and adopted by the Board of Supervisors via Ordinance No. 25-015. Canyon and hillside communities face the strictest building and vegetation management requirements.
View full Midway City rules →Mission Viejo, CA
Orange County
Portions of Mission Viejo along the eastern and southern hillside edges are designated as Very High Fire Hazard Severity Zones by CAL FIRE and OCFA. Properties in these zones must maintain 100 feet of defensible space, use fire-resistant building materials, and comply with OCFA vegetation management inspection programs. Annual brush clearance is required before fire season.
View full Mission Viejo rules →Key Facts Comparison
| Fact | Midway City | Mission Viejo |
|---|---|---|
| Ordinance | No. 25-015 (Aug 2025) | - |
| Zones | Very High, High, Moderate | - |
| Building Code | CBC Ch. 7A / CRC R327 | - |
| Disclosure Required | CC §1103 NHD Statement | - |
| VHFHSZ Areas | Canyon communities | - |
| Defensible Space | - | 100 feet required from structures |
| Zone 1 Clearance | - | 0–30 feet, remove all combustibles |
| Inspections | - | Annual OCFA vegetation management checks |
| Building Materials | - | Class A roof, fire-resistant per CBC Ch. 7A |
| Inspection Period | - | April through June annually |
Highlighted rows indicate differences between cities.
Midway City FAQ
Is my unincorporated Orange County property in a wildfire zone?
Check the OC Fire Hazard Severity Zones Map adopted under Ordinance No. 25-015. Most canyon and hillside communities (Trabuco Canyon, Silverado, Modjeska, Santiago Canyon) are classified as Very High Fire Hazard Severity Zones.
What building requirements apply in Orange County wildfire zones?
Properties in Very High Fire Hazard Severity Zones must use fire-resistive construction per California Building Code Chapter 7A, including ignition-resistant materials, ember-resistant vents, and fire-rated roofing.
Mission Viejo FAQ
Is my Mission Viejo property in a wildfire hazard zone?
Properties along the eastern hillsides near Trabuco Canyon and areas near Oso Parkway may be in a Very High Fire Hazard Severity Zone. Check the CAL FIRE hazard severity zone map or contact OCFA Community Risk Reduction at (714) 573-6000 for your specific address.
What does defensible space clearance require?
Within 30 feet of your home, remove all dead vegetation, dry leaves, and combustible materials. From 30 to 100 feet, reduce and space vegetation to slow fire spread. Trees should be limbed up 6 feet from the ground and spaced so canopies do not touch.
When does OCFA inspect for brush clearance?
OCFA typically conducts vegetation management inspections from April through June. Property owners in designated zones receive written notices with a compliance deadline. Contact OCFA at (714) 573-6000 if you have questions about your inspection schedule.
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