Wildfire Zones: Menifee vs Riverside
How do wildfire zones rules compare between Menifee, CA and Riverside, CA?
Menifee and Riverside have similar restriction levels.
Menifee, CA
Riverside County
Per the OSFM 2025 Recommended Local Responsibility Area (LRA) Fire Hazard Severity Zone maps released March 24, 2025, Menifee contains a mix of Moderate FHSZ (urban lowlands) and Very High FHSZ (hillside / foothill areas). Menifee Municipal Code §8.20.170 adopts FHSZ designations. Parcels in Very High FHSZ trigger Government Code §51182 defensible space (100 ft), CBC Chapter 7A ignition-resistant construction for new builds, and real-estate disclosure under Civil Code §1103.
View full Menifee rules →Riverside, CA
Riverside County
Portions of Riverside — particularly the hillside neighborhoods around Sycamore Canyon, Box Springs, La Sierra Hills, and Two Trees — are mapped as Moderate, High, or Very High Fire Hazard Severity Zones. Owners in those zones must maintain 100 feet of defensible space and meet Wildland-Urban Interface (WUI) construction standards.
View full Riverside rules →Key Facts Comparison
| Fact | Menifee | Riverside |
|---|---|---|
| OSFM 2025 LRA map | Effective via OSFM March 24, 2025 | - |
| Menifee zones | Moderate (lowlands), Very High (hillsides) | - |
| Defensible space (VHFHSZ) | 100 ft per GC §51182 / PRC §4291 | - |
| New construction (VHFHSZ) | CBC Chapter 7A ignition-resistant materials | - |
| Real-estate disclosure | Civil Code §1103 NHD form required | - |
| Look up your parcel | cityofmenifee.us/1088/Fire-Maps | - |
| Zone tiers | - | Moderate, High, Very High |
| Authority | - | PRC §§4201-4204; Gov. Code §§51175-89 |
| Defensible space | - | 100 ft (PRC §4291) |
| New construction | - | CBC Ch. 7A & CFC Ch. 49 |
| Sales disclosure | - | Civ. Code §1103 (NHD) |
| Local map | - | Riverside FD FHSZ page |
Highlighted rows indicate differences between cities.
Menifee FAQ
How do I find out what zone my Menifee property is in?
Use the City's 2025 Menifee-Specific Fire Map at cityofmenifee.us/1088/Fire-Maps or the statewide OSFM FHSZ Viewer at osfm.fire.ca.gov. Enter your address; the map will show Moderate, High, or Very High designation.
Does my property's zone affect what I can build?
Yes if you are in a High or Very High FHSZ. New residential construction (and substantial remodels) must meet California Building Code Chapter 7A — Class A roof, ember-resistant attic and foundation vents, fire-resistant siding and eaves, dual-pane tempered glass on exterior windows.
Do I have to disclose the FHSZ when selling my home?
Yes. California Civil Code §1103 requires sellers to complete a Natural Hazard Disclosure Statement indicating whether the property is in a State or Local Responsibility Area Very High FHSZ. Failure to disclose can create civil liability.
Riverside FAQ
How do I find out if my Riverside home is in an FHSZ?
Use the City of Riverside Fire Department's Fire Hazard Severity Zones interactive map, or the Riverside County Mapping Portal's FHSZ layer. The State Fire Marshal also offers a statewide viewer.
What if my home was built before Chapter 7A?
Existing structures in an FHSZ are not required to retrofit. However, any addition, alteration, or reroof generally triggers Chapter 7A compliance for the new work, and class-A roofing is required citywide on a reroof.
Do I have to disclose FHSZ status when selling?
Yes. California Civil Code §1103 requires the seller to deliver a Natural Hazard Disclosure Statement identifying FHSZ status as part of the transfer.
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