An elevation certificate is a standardized FEMA document, prepared by a licensed surveyor, engineer, or architect, that records how high your building sits relative to expected flood levels. You need one if you’re building or substantially improving a structure in a Special Flood Hazard Area, if you want to challenge your property’s flood-zone designation, or if you want the chance to lower your National Flood Insurance Program premium with property-specific elevation data. If your home isn’t in or near a flood zone and you don’t carry NFIP flood insurance, you almost certainly don’t need one.
What the Certificate Measures
The document comes down to a single comparison: how high is your building versus how high floodwaters are expected to reach. The key reference point is the Base Flood Elevation, or BFE, which is the height floodwaters are estimated to reach during a major flood with a 1% chance of occurring in any given year. Your certificate compares your building’s lowest floor elevation against that benchmark.1FEMA. Understanding Elevation Certificates
It also captures the Lowest Adjacent Grade, meaning the lowest ground level touching your foundation, and the Highest Adjacent Grade, the highest ground level touching it. Together these numbers tell insurers and local officials exactly how exposed your property is to flooding.2National Flood Insurance Program. All About Elevation Certificates Water flows downhill, so the higher your first floor sits above the anticipated flood level, the less damage a flood is likely to cause and the less you’ll pay to insure against it.
When You Actually Need One
Building or Substantially Improving in a Flood Zone
If you’re constructing a new structure or making substantial improvements to an existing one inside a Special Flood Hazard Area (SFHA), your local building department will require an elevation certificate to show the project meets minimum elevation standards. Federal regulations require communities participating in the NFIP to verify that new buildings and major improvements in flood-prone areas are properly elevated.3FEMA. Elevation Certificate Your community may require the certificate both before and after construction.1FEMA. Understanding Elevation Certificates
Lowering Your NFIP Flood Insurance Premium
Under the NFIP’s current pricing system, Risk Rating 2.0, an elevation certificate is no longer required to buy a policy. FEMA uses its own data sources to estimate your building’s elevation. But if you provide a certificate with more detailed elevation information, the rating system may return a lower annual premium.4National Flood Insurance Program. Frequently Asked Questions – Risk Rating 2.0 Equity in Action Property owners in high-risk zones have seen annual savings of several hundred dollars or more after submitting one.
Private flood insurance carriers generally don’t require elevation certificates for underwriting, even for high-risk zones. But not every property qualifies for private coverage, and if you end up with an NFIP policy, having the certificate on hand gives you the best shot at an accurate rate.
Getting Your Property Out of a Flood Zone
If you believe your property was incorrectly mapped into a flood zone, you can ask FEMA to remove it through a Letter of Map Amendment (LOMA). The application requires certified elevation data, typically an elevation certificate prepared by a licensed surveyor or professional engineer.5FEMA. Letter of Map Amendment and Letter of Map Revision-Based on Fill Process A successful LOMA eliminates the mandatory flood insurance requirement tied to your mortgage. FEMA does not charge a fee to review LOMA requests from property owners, so the only cost is the surveyor’s fee. The certificate used for a LOMA has specific sections that must be completed to support the request, so a certificate prepared only for insurance purposes may not include all the fields FEMA needs.
Mortgages and Refinancing
Federal law requires flood insurance for properties in SFHAs that have federally backed mortgages, which covers most conventional, FHA, and VA loans. Some lenders also require an elevation certificate when refinancing a property in a flood zone, particularly if one isn’t already on file.
How It Affects Your Premium
FEMA sets your initial premium using its own elevation estimates and datasets. Those estimates aren’t always precise. If your building actually sits higher than FEMA’s data suggests, you’re overpaying. Submitting an elevation certificate gives FEMA property-specific measurements that can correct the estimate and lower your rate.1FEMA. Understanding Elevation Certificates
Savings vary widely depending on how far off FEMA’s initial estimate was. Properties where the actual first floor sits well above the BFE tend to see the largest reductions. Even a few inches of elevation difference can shift the premium meaningfully, because flood insurance pricing is highly sensitive to the gap between your lowest floor and the expected flood height.
The 50% Rule for Remodels
Federal regulations define a “substantial improvement” as any renovation, addition, or rehabilitation where the total cost equals or exceeds 50% of the building’s market value before the work begins. The same threshold applies to “substantial damage.” If repairing storm or flood damage would cost 50% or more of the pre-damage market value, the building is treated the same way.6eCFR. 44 CFR 59.1 – Definitions
Once a project crosses that 50% line, the building must be brought up to current flood elevation standards, which means an elevation certificate showing compliance with the latest requirements. The market value calculation looks only at the structure. Land value doesn’t count. This rule catches many homeowners off guard during major remodels, because the cumulative cost of improvements is what matters, not just a single project.
Historic structures are exempt from this requirement, and so are repairs that correct existing health or safety code violations where the work is the minimum necessary for safe occupancy.6eCFR. 44 CFR 59.1 – Definitions
What’s On the Form
The elevation certificate is a standardized FEMA form, currently Form FF-206-FY-22-152.7FEMA. National Flood Insurance Program Underwriting Forms It captures more than just a single height measurement. Expect the following data points:
- Property identification: address, legal description, and the FEMA flood zone designation (such as Zone A, AE, or VE) from the current Flood Insurance Rate Map.
- Building characteristics: foundation type (slab, crawlspace, basement, or elevated), number of floors, and whether the building has an attached garage or enclosed area below the lowest floor.
- Base Flood Elevation at the property’s location.
- Lowest floor elevation, measured separately from any basement. Basements are noted on the certificate but measured as a distinct indicator of flood risk.2National Flood Insurance Program. All About Elevation Certificates
- Elevation of machinery and equipment servicing the building: furnaces, water heaters, air conditioning units, electrical panels, and fuel tanks.
- Lowest Adjacent Grade and Highest Adjacent Grade.
- Flood openings: for buildings with crawlspaces or enclosed areas below the BFE, whether flood vents meet federal requirements for allowing water to flow through rather than build up pressure against walls.
- The certifying professional’s name, license number, and seal.
How to Get One
Only a licensed land surveyor, professional engineer, or certified architect can prepare and sign an official elevation certificate.1FEMA. Understanding Elevation Certificates To find one, check with your state’s professional association for land surveyors, ask your state NFIP coordinator, or contact your local building permit office. Your flood insurance agent may also have recommendations. Before hiring anyone, verify that their license is active through your state’s professional licensing board.
Before commissioning a new certificate, check with your local floodplain manager or building department. An existing certificate may already be on file, especially if the community participates in the Community Rating System. Previous property owners may also have one in their records.
Most homeowners pay between $400 and $750 for an elevation certificate, with the national average around $600. Simple residential properties on the lower end of that range can cost as little as $170, while complex commercial buildings or properties requiring extensive research can run up to $2,000.
The process starts with a site visit where the surveyor takes precise measurements and collects elevation data. You’ll need to provide the property address, legal description, and any existing blueprints or site plans. Residential certificates are typically completed faster than boundary or title surveys. Expect to wait at least a few business days to a couple of weeks, with more complicated properties taking longer.
Does It Expire?
A completed elevation certificate does not expire on its own. It remains valid for the life of the structure unless a physical change to the building invalidates the elevation data, for example if the building is raised, lowered, or substantially modified in a way that changes the measurements recorded on the certificate. If that happens, you need a new one.
The FEMA form itself has an expiration date (the current version expires June 30, 2026), but that governs which version of the form may be used for new certificates. It doesn’t invalidate certificates already completed on older forms. If your area’s flood maps are revised through a Letter of Map Revision, the LOMR effective date and case number should be noted in the certificate’s comments section, but the certificate itself doesn’t become invalid just because the maps changed.