Why Elevation Certificates Matter So Much in Jefferson Parish
Jefferson Parish is largely below sea level. The east bank communities of Metairie and Kenner sit between the natural levee of the Mississippi River and the southern shore of Lake Pontchartrain. The west bank communities of Gretna, Harvey, Marrero, and Westwego face the river on one side and low-lying backswamp on the other. Nearly the entire parish falls within FEMA-designated special flood hazard areas, making flood insurance not just common but effectively required for any mortgaged property.
In that environment, the elevation certificate is the document that determines how much flood insurance costs. Getting one from a licensed Louisiana PLS is one of the most financially significant survey decisions most Jefferson Parish homeowners will make.
What an Elevation Certificate Measures
An elevation certificate is an official FEMA form that documents the elevation of a building's lowest floor relative to the Base Flood Elevation (BFE) assigned to that property under the current FEMA flood map. The BFE represents the elevation that floodwaters are expected to reach during a major flood event in that zone.
If your lowest floor is above the BFE, your premium is lower. If it sits at or below the BFE, your premium is higher. In Jefferson Parish, where many residential structures were built at grade or just slightly above it, the precise elevation reading can translate directly into hundreds of dollars per year in insurance cost differences.
The certificate also captures details about foundation type, building access, attached structures, and whether any enclosed areas below the BFE have flood openings. All of these factors feed into how insurers rate your policy.
The Post-Katrina Elevation Context
After Hurricane Katrina, Jefferson Parish saw thousands of structures elevated as part of federally subsidized flood mitigation programs. Many homeowners raised their houses to or above the BFE specifically to reduce their flood insurance premiums. Those elevation projects need to be documented with a current elevation certificate to be reflected in insurance rates.
If your home was elevated after Katrina and you do not have a post-elevation certificate, you may be paying flood insurance premiums that do not reflect your actual elevation. A current certificate from a licensed PLS could result in a significant premium reduction.
AE and VE Flood Zones in Jefferson Parish
AE zones carry a one percent annual chance of flooding and have assigned Base Flood Elevations. Most of Jefferson Parish's residential land falls in AE zones. VE zones have the same flood frequency but add wave action, making them more dangerous and resulting in higher insurance premiums. Some areas near the coast and along unprotected waterways fall in VE zones.
The specific zone your property is in determines not just your insurance rate but also what construction standards apply if you build or substantially renovate. Your elevation certificate will note the flood zone and the BFE for your specific map panel.
When You Need a New Elevation Certificate
Several situations call for a fresh elevation certificate in Jefferson Parish. When buying a property and flood insurance is required, request a current certificate from the seller or order a new one. When renewing flood insurance after a map revision that changes your zone or BFE. When a structure has been elevated, renovated, or substantially altered. When your insurer questions your current rating. When applying for a building permit in a regulated flood zone.
The Cost in 2026
Most property owners in Metairie, Kenner, and the west bank communities pay $200 to $400 for an elevation certificate prepared by a licensed Louisiana PLS. Complex properties, older structures with unusual foundation types, or those in VE zones requiring more detailed measurement may run up to $450. The cost is usually recoverable within the first one or two years of reduced flood insurance premiums if your elevation is above the BFE.
How to Order One
Contact a licensed Louisiana PLS operating in Jefferson Parish. Provide the property address, parcel identification number, and any existing surveys or permits you have. The surveyor will schedule a field visit, measure the relevant elevations, and complete the official FEMA form. Delivery typically takes one to three weeks. The finished certificate is signed and sealed and can be submitted directly to your flood insurance carrier.
To find licensed surveyors who prepare elevation certificates throughout Jefferson Parish, including in Metairie, Gretna, Belle Chasse, and Westwego, visit our Jefferson Parish directory.