Established in 1907, Gretna City Hall is governed by the City of Gretna in Louisiana. The city hall s architecture depicts the pictorial history of the city and its famous personalities. Founded in 1836, the City of Gretna in Louisiana has a population of more than 15,000. The city operates through various departments, including administration, police, fire, finance, recreation, public works, and planning and zoning. Its department of regulatory inspections issues building, electrical, mechanical and plumbing permits, as well as works to ensure compliance with building code requirements. The City of Gretna in Louisiana s public utilities department operates the city s municipal potable water supply and sewer systems.