ADU Rules in Kenner, Louisiana

Kenner is a Jefferson Parish city of about 67,000 between New Orleans and Metairie, adjacent to Louis Armstrong New Orleans International Airport (MSY). The largest incorporated city in Jefferson Parish (Metairie is unincorporated), Kenner is a primarily suburban community with the airport as a major feature. Louisiana has no statewide ADU preemption law — Kenner's local zoning governs.

Kenner Zoning Ordinance

The City of Kenner Zoning Ordinance governs all land use within Kenner city limits.

Permitted ADU Types

Depending on the zoning district:

• Accessory apartments: Within or attached to primary structure
• Detached ADUs: Subject to zoning standards

Verify current ADU provisions with Kenner's Planning and Zoning Division.

Size Limits

Per Kenner Zoning Ordinance:

• ADU size limits apply per zone — verify current standards

Setbacks

Per Kenner residential zone:

• Rear: Minimum setback
• Side: Minimum setback

FLOOD ZONES

Kenner is in the New Orleans metro, largely below sea level and protected by levees. Post-Katrina flood standards apply:

• Verify FEMA flood map status for your property
• Freeboard requirements above BFE may apply
• Substantial Improvement Rule applies

MSY Airport Proximity

Louis Armstrong Airport (MSY) is located in Kenner. Properties near the airport may be in:

• Aircraft noise impact zones: Sound attenuation may be required
• FAA airspace overlay zones: Building height restrictions near flight paths

Verify if your property is in an airport overlay zone with Kenner Planning.

Permit Process

1. Verify flood elevation: Check FEMA FIRM panel
2. Check MSY airport overlay: If near the airport
3. Verify zoning: Kenner Planning and Zoning Division
4. Submit plans: Kenner Building Inspection Division
5. Building permit and inspections
6. CO: Required before occupancy

Contact

City of Kenner Planning and Zoning Division 1801 Williams Boulevard, Kenner, LA 70062 Phone: (504) 468-7225 Website: kenner.la.us

Disclaimer: Louisiana has no statewide ADU law. Kenner zoning governs locally. Flood zones and airport proximity affect many properties. Verify current ADU allowances with the City of Kenner before starting any project.