Hurricane Preparedness in Jefferson Parish, LA (2026)
1 rule for unincorporated Jefferson Parish, Louisiana.
Verified from official government sources
Note: These county rules apply to unincorporated areas of Jefferson Parish. If you live within an incorporated city, that city's own rules apply: see the city list below.
Flood Elevation
New residential construction in Jefferson Parish's mapped flood zones must sit above a set NAVD 88 elevation, noted right on the building permit. Outside the parish's Hurricane Storm Damage Risk Reduction System, Zone AE homes must have their lowest floor at the base flood elevation plus two feet of freeboard, with any enclosed space below that line capped at 299 square feet.
Jefferson Parish Flood Elevation and Freeboard Rules
Some RestrictionsJefferson Parish Code of Ordinances § 14-6.2.1
Permits issued for new construction of any residential structure, must have the required NAVD 88 elevation of the lowest floor or lowest horizontal portion of the structural member and the base flood elevation noted on the permit. ... (3)In Zone AE outside the Hurricane Storm Damage Risk Reduction System (HSDRRS), the lowest floor shall be at:a.The BFE on the FIRM plus two (2) feet of freeboard...
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