AZ · Region 9
LOMA and LOMR-F in Arizona
Arizona has one of the most active LOMA workloads in the Southwest. Flash flooding from summer monsoons and alluvial fan flow around Phoenix, Tucson, and Flagstaff puts many parcels in Zone A or AE even though the structure may be above the mapped level.
LOMA in Arizona
LOMA requests are common for homes on natural high ground within large mapped alluvial fans.
Read the national LOMA page →LOMR-F in Arizona
LOMR-F requests appear in newer master-planned subdivisions where fill was used during pad construction.
Read the national LOMR-F page →Where activity concentrates
Major metros
- • Phoenix
- • Tucson
- • Mesa
- • Scottsdale
Common counties
- • Maricopa County
- • Pima County
- • Pinal County
Arizona county guides
Licensing and documentation in Arizona
An Arizona Registered Land Surveyor or Registered Professional Engineer must seal elevation documents.
Frequently asked questions about Arizona
Can a property in Arizona qualify for a FEMA LOMA?
Yes, many Arizona properties qualify when the structure or parcel sits on natural high ground above the Base Flood Elevation. LOMA requests are common for homes on natural high ground within large mapped alluvial fans. A specialist review can confirm whether the property matches the LOMA pattern before you order new survey work.
When is a LOMR-F the right path in Arizona?
A LOMR-F applies when earthen fill created the elevation difference. LOMR-F requests appear in newer master-planned subdivisions where fill was used during pad construction. If fill was used, packaging the file as a LOMA usually creates delay.
Who can prepare an Elevation Certificate in Arizona?
An Arizona Registered Land Surveyor or Registered Professional Engineer must seal elevation documents. FloodMapReview.com can review an existing Elevation Certificate or connect you with a qualified professional if new survey work is needed.
Which Arizona counties see the most LOMA and LOMR-F activity?
Activity is concentrated in Maricopa County, Pima County, Pinal County, driven by monsoon flash flooding and alluvial fan flow.
Does a LOMA in Arizona automatically remove flood insurance?
Not automatically. A LOMA can change the federal mandatory-purchase requirement, but Arizona lenders and insurance carriers still make underwriting decisions. A Arizona homeowner may still choose to keep voluntary coverage.
How long does a Arizona LOMA typically take?
Timing depends on document readiness and whether the case qualifies for the faster professional-submitted eLOMA route. Most Arizona files move faster when the Elevation Certificate and FEMA correspondence are gathered before submission.
Can FloodMapReview.com help with a LOMA anywhere in Arizona?
Yes. We review LOMA and LOMR-F files across all Arizona counties, including Phoenix, Tucson, Mesa and surrounding areas. Call (281) 870-4492 to talk through an urgent file.
What documents should Arizona homeowners gather first?
Start with the property address, current flood zone or lender determination, any existing Elevation Certificate or survey, prior FEMA correspondence, and a lender or insurance notice if one triggered the review. Upload what you have and a specialist will identify the next step.
Reviewed by
FloodMapReview Engineering
Licensed P.E. and CFM team, FloodMapReview.com
FloodMapReview Engineering is a team of licensed Professional Engineers and Certified Floodplain Managers who have reviewed hundreds of LOMA, LOMR-F, eLOMA, and Online LOMC files across the United States. The team specializes in helping homeowners, buyers, lenders, and surveyors navigate the FEMA flood map amendment process. FloodMapReview engineers personally review every case for eligibility, ensure Elevation Certificates and supporting documents meet FEMA standards, and guide clients from initial assessment through final determination.
