Wildfire Zones: Marana vs Oro Valley
How do wildfire zones rules compare between Marana, AZ and Oro Valley, AZ?
Marana has fewer restrictions than Oro Valley.
Marana, AZ
Pima County
Marana has wildland-urban interface areas along the Tortolita Mountains and Dove Mountain foothills. Northwest Fire District enforces the International Fire Code with wildfire mitigation requirements for properties in high-risk zones.
View full Marana rules →Oro Valley, AZ
Pima County
Oro Valley has significant Wildland-Urban Interface (WUI) exposure along the Santa Catalina Mountains, Pusch Ridge Wilderness, and Catalina State Park. The Golder Ranch Fire District maps WUI zones and enforces fire-adapted building and landscaping requirements. Properties in WUI zones face enhanced building standards, defensible space requirements, and may experience periodic evacuations during wildfire events. The 2020 Bighorn Fire demonstrated the real wildfire threat to Oro Valley communities.
View full Oro Valley rules →Key Facts Comparison
| Fact | Marana | Oro Valley |
|---|---|---|
| WUI Areas | Dove Mountain, Tortolita foothills | - |
| Fire District | Northwest Fire District | Golder Ranch FD |
| Codes | IFC and IWUIC (state-adopted) | - |
| Building Standards | Fire-resistant materials in WUI | Class A roof, ember-resistant vents |
| Access Roads | Required in hillside developments | - |
| WUI Zones | - | Catalina foothills, Pusch Ridge area |
| 2020 Bighorn Fire | - | 119,000+ acres, OV evacuations |
| Federal Land | - | Coronado National Forest adjacent |
Highlighted rows indicate differences between cities.
Marana FAQ
Is my Marana home in a wildfire zone?
Properties near the Tortolita Mountains, Dove Mountain foothills, and Santa Cruz River corridor are in the wildland-urban interface. Contact Northwest Fire District at (520) 887-1010 for a specific assessment.
What building requirements apply in Marana wildfire zones?
Properties in WUI areas may need fire-resistant roofing, ember-resistant vents, and defensible-space vegetation management per the International Fire Code and IWUIC.
Oro Valley FAQ
Is my Oro Valley property in a wildfire zone?
Properties along the northern and eastern boundaries near the Catalina Mountains, Pusch Ridge Wilderness, and Catalina State Park are in WUI zones. Contact the Golder Ranch Fire District for specific property assessments and WUI mapping.
What building requirements apply in Oro Valley wildfire zones?
WUI zone properties must meet enhanced standards including Class A fire-rated roofing, ember-resistant vents, non-combustible siding, and defensible space landscaping. These apply to new construction and major renovations.
How real is the wildfire risk in Oro Valley?
The 2020 Bighorn Fire burned over 119,000 acres in the Catalina Mountains and caused evacuations in Oro Valley communities. Wildfire risk is significant and ongoing, especially during dry spring and summer months.
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