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Gretna City Hall is open to the public by APPOINTMENT ONLY. If you have business that must be handled in person, are well and have not been exposed to anyone unwell, please call 363-1500 to request an appointment. Beginning Monday, July 6, office hours will be 9:00 am to 4:00 pm. Everyone is reminded to please wear a mask in public and practice social distancing!

Build Responsibly in a Floodplain

Land in Gretna is in a floodplain. All development to build, fill, or otherwise alter land requires a permit.

The Gretna Code of Ordinances addresses requirements in Sec. 28-30. – Standards of construction.

New Construction
Any construction of a new structure commencing on or after the date of effective ordinance.

Substantial Improvement
When the cost of construction, rehabilitation, additions, or other improvements to a building equals or exceeds 50% of the fair market value.

Substantial Damage
When a structure receives damages and the cost of all repairs equals or exceeds 50% of the building’s fair market value.

Contact the Building Department to obtain necessary permits at 504-363-1563.

Due to the requirements of the National Flood Insurance Program and the overall goal for a more hazard-resistant and sustainable community, Gretna’s Ordinance – Chapter 28 looks at the height requirements for residential and non-residential buildings. Be sure to hire a licensed contractor who knows the rules.

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