7 Benefits of a LOMA for Homeowners in Flood Zones
Last Updated: October 24, 2026
Quick Summary
The benefits of a LOMA for homeowners include a corrected flood-zone determination for your property, relief from the mandatory purchase requirement in many cases, and a stronger position when you sell or refinance. A LOMA is an official FEMA document that removes a structure from a Special Flood Hazard Area on the flood map.
A LOMA covers the structure, not the whole lot, and fill dirt does not count as natural grade.
After approval, send the LOMA to your lender's flood desk and request a written flood-zone determination.
An Elevation Certificate records data, while a LOMA requests a decision from FEMA.
If fill dirt was placed to raise the ground, a LOMA will not work; you likely need a LOMR-F instead.
A LOMA does not lower your flood risk, cover contents, or change the map for your neighbors.
Table of Contents
What a LOMA Is and Why It Matters to Homeowners
How a LOMA Changes Your FEMA Flood Zone Designation
The LOMA Flood Insurance Requirement, Explained
What Happens to Mortgage and Insurance Rules After Approval
LOMA vs. Elevation Certificate: Two Different Documents
How to Apply for a LOMA: A Step-by-Step Homeowner Checklist
Check Eligibility Before You Pay for a Survey
LOMA Application Processing Time, Fees, and What to Expect
LOMA vs. LOMR-F and Other FEMA Map-Change Options
Denials, Appeals, and the Limits of a LOMA
Request a Quote for Your LOMA Survey
Frequently Asked Questions
What a LOMA Is and Why It Matters to Homeowners
A Letter of Map Amendment (LOMA) is an official FEMA document that removes a structure from a Special Flood Hazard Area on the flood map.
Here is the core idea. FEMA draws flood maps in broad strokes.
The benefits of a LOMA for homeowners come down to three things:
A corrected flood-zone determination for your property
Relief from the mandatory purchase requirement in many cases
A stronger position when you sell or refinance
That last point matters more than most people expect. A buyer's lender checks the flood map. A clean LOMA answers the question before it becomes a closing problem.
How a LOMA Changes Your FEMA Flood Zone Designation
A LOMA does not redraw the flood map itself. It amends the map's effect on one structure and one parcel.
The key evidence is natural grade. FEMA compares the lowest adjacent grade next to your structure against the Base Flood Elevation.
Two limits are worth knowing now:
A LOMA covers the structure, not the whole lot.
Fill dirt placed to raise the ground does not count as natural grade.
The FEMA flood map service and map amendment guidance explains how the FIRM panels and Letters of Map Change fit together.
The LOMA Flood Insurance Requirement, Explained
The LOMA flood insurance requirement is simple: lenders must require flood insurance on structures inside a Special Flood Hazard Area.
Here is what most guides miss. A LOMA does not cancel your policy or refund your premium. You or your lender must act on the determination.
Steps to take after approval:
Send the approved LOMA to your lender's flood desk.
Ask for a written flood-zone determination.
Request a policy review if the requirement is lifted.
Keep the document with your closing papers.
Flood risk does not vanish because a map line moved. A LOMA changes a designation. It does not stop water.
What Happens to Mortgage and Insurance Rules After Approval
Lenders follow the effective flood map and their own review. An approved LOMA gives them the document they need to reconsider the requirement. Some lenders move quickly.
On the insurance side, the change can affect how a policy is rated.
Watch out: assuming approval ends your flood risk or your premium. Neither happens automatically. Confirm both with your lender and agent in writing.
LOMA vs. Elevation Certificate: Two Different Documents
An Elevation Certificate records data. A LOMA requests a decision. That is the cleanest way to separate them.
The Elevation Certificate is a FEMA form completed by a licensed surveyor. It documents the lowest floor, the BFE, and the ground elevations around the building.
Document | What It Does | Who Prepares It | Main Use |
Elevation Certificate | Records elevations and flood zone data | Licensed surveyor | Insurance rating, lender review |
LOMA | Requests removal of a structure from the SFHA | Homeowner with survey data | Correcting the flood-zone determination |
Most LOMA packages include an Elevation Certificate or equivalent elevation data. For a fuller side-by-side, see our comparison of LOMA versus elevation certificate differences.
How to Apply for a LOMA: A Step-by-Step Homeowner Checklist
Applying for a LOMA follows a predictable path. The work happens before the form, not after it. Most practitioners find that applications fail on missing or mismatched data, not on the merits of the case.
Use this checklist, in order:
Pull the effective FIRM panel for your parcel from FEMA's Flood Map Service Center
Confirm the structure sits in an A zone or V zone on that panel
Run the free eligibility check below before hiring anyone
Hire a licensed surveyor to establish natural ground elevation and lowest adjacent grade
Collect the Elevation Certificate and a property description (parcel number, legal description, and structure location)
Complete the LOMA application with the correct fee
Submit to FEMA with all supporting documents
Track the review and respond to any requests for information
File the approval with your lender and insurer
Errors at the documentation step sink more applications than anything else. For a deeper walkthrough, read our step-by-step LOMA application guide.
Check Eligibility Before You Pay for a Survey
Run a free check first. The goal is to answer one question: is the natural ground next to your structure at or above the Base Flood Elevation?
Use this decision tree:
Locate your structure on the effective FIRM panel. If it is outside the Special Flood Hazard Area, you do not need a LOMA for the mandatory purchase requirement, confirm with your lender.
If it is inside an A or V zone, find the BFE for your panel. The BFE is printed on the FIRM or available in the Flood Insurance Study for your community.
Compare the natural ground elevation at your structure to the BFE. If the ground is clearly below the BFE, a LOMA will not succeed and the survey money is wasted.
If the ground is close to or above the BFE, the case is worth pursuing. A surveyor can confirm the numbers before you commit to a full application.
If fill dirt was placed to raise the ground, stop. A LOMA will not work on fill; you likely need a LOMR-F instead.
Pro Tip A quick sanity check: if your neighbors on the same block have approved LOMAs, your odds improve. If the whole street sits in a mapped low area, the map may be right.
If the ground is close to or above the BFE, the case is worth pursuing. A surveyor can confirm the numbers before you commit to a full application.
LOMA Application Processing Time, Fees, and What to Expect
FEMA reviews LOMA requests in the order received. Processing time varies with workload and application quality. A clean, complete package moves faster than one that needs corrections. Most practitioners find that a straightforward residential LOMA with complete elevation data is reviewed in weeks to a few months, while packages that need corrections can stretch longer because the clock restarts with each resubmission.
Costs come in two parts: the FEMA review fee and the survey work.
FEMA review fee. FEMA publishes its map-change fee schedule, and the amount depends on the type of request. Confirm the current fee on FEMA's fee schedule before you submit, because it is updated periodically.
Survey work. Survey pricing depends on lot size, access, records, and scope, so we quote each project individually. You can see what drives those numbers in our breakdown of survey costs and what changes the price.
What to expect during review:
An acknowledgment that your package arrived
A technical review of the elevation data against the BFE
Possible requests for more information (respond promptly; delays can close the file)
A final determination letter
Watch Out Submitting before the survey data is final is the most common costly mistake. A rushed package with estimated elevations gets returned, and the clock restarts. Confirm the Elevation Certificate is signed and the benchmarks are tied to the correct datum before you file.
A realistic budget conversation covers both line items, not just the survey. Ask your surveyor whether the quote includes preparation of the Elevation Certificate and the LOMA package, or only field data.
LOMA vs. LOMR-F and Other FEMA Map-Change Options
A LOMA and a LOMR-F both remove a structure from the SFHA, but they apply to different situations. A LOMA works when the structure sits on natural ground above the BFE. A Letter of Map Revision Based on Fill (LOMR-F) applies when fill dirt was placed to raise the ground.
The distinction decides your path:
Natural high ground: LOMA
Engineered fill: LOMR-F
Map line itself is wrong: Letter of Map Revision
Whole area changed: map revision through the community
Choosing the wrong document wastes time and money. Our guide to LOMA versus LOMR-F and other FEMA options breaks down which fits your property.
Denials, Appeals, and the Limits of a LOMA
A denial is not the end. FEMA denies requests when the elevation data does not support removal, when the wrong document was filed, or when the application has errors. Each of those is fixable.
Common fixes:
Correct the parcel or benchmark errors and resubmit
Gather stronger elevation data from a licensed surveyor
Switch to a LOMR-F if fill is involved
Appeal with a clear technical explanation
Know the limits. A LOMA does not lower your flood risk, does not cover contents, and does not change the map for your neighbors. It corrects one structure's designation. Water still follows the terrain, not the paperwork.
Request a Quote for Your LOMA Survey
The hardest part of a LOMA is the elevation data, and that is where we do our best work.
Our team handles the survey, the documentation, and the submission details that trip up do-it-yourself filers. You get precise elevation data, a package built for FEMA review, and a clear explanation of each step.
Ready to see whether your home qualifies? Request a quote for your LOMA survey and we will walk you through the process.
Frequently Asked Questions
What are the benefits of a LOMA for homeowners?
A LOMA benefits homeowners by formally removing a structure from a Special Flood Hazard Area when natural ground sits above the Base Flood Elevation. That can release a lender's mandatory purchase requirement, lower or remove flood insurance costs, and make the property easier to sell. It also gives you official FEMA documentation you can show insurers and title companies. A LOMA does not cancel an existing policy on its own, and it does not remove residual flood risk, so review your coverage before dropping anything.
Does a LOMA automatically cancel my flood insurance policy?
No. A LOMA changes the flood-zone determination for the structure, but your policy stays in force until you or your lender act. Contact your insurer after approval and ask how the map amendment affects your premium and whether the mandatory purchase requirement still applies. If your lender no longer requires coverage, you decide whether to keep a policy for residual risk. Many owners keep contents or preferred-rate coverage because a LOMA addresses map status, not actual flood damage exposure.
How long does FEMA take to review a LOMA application?
LOMA application processing time varies with FEMA's workload and whether your submittal is complete. Incomplete packages are the main cause of delay, so a surveyor-reviewed application with correct elevation data, a legal description, and the right forms moves faster. Ask your provider for the current expected timeline rather than relying on older figures, and build buffer into any closing date. You can track status through FEMA's map-change system once the case is assigned.
Can a LOMA remove my home from a high-risk flood zone?
A LOMA can remove a structure from a high-risk zone only when the lowest adjacent grade meets or exceeds the Base Flood Elevation on natural ground, with no fill used to raise it. If the property was elevated with fill, a LOMR-F is usually the correct path instead. A LOMA also applies to the structure and parcel as described, not to the whole neighborhood. A surveyor can check your elevation data against the Flood Insurance Rate Map before you pay for a full application.
Flood maps are broad, and your property is specific. If a zone line is costing you insurance dollars or complicating a sale, the fix starts with accurate elevation data. Get started with CDB Surveying and put a licensed surveyor and a managed LOMA application behind your flood-zone determination.
Request a quote
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