La. Stat. tit. 33 § 140.205
Whenever the planning commission recommends to the city council of a participating municipality and to the police jury of Calcasieu Parish a zoning plan, including both the full text of a zoning ordinance and the map or maps, representing the recommendations of the planning commission for the regulation by districts or zones of the location, height, bulk, number of stories, and size of buildings and other structures, the percentage of the lot which may be occupied, the size of yards, courts, and other open spaces, the density of population, and the uses of buildings, structures, and land for trade, industry, residence, recreation, civic activities, and other purposes, then the city council and the police jury may exercise the powers granted for the purpose as provided in R.S. 33:140.204 and, by ordinance, may divide the participating municipality or that part of the parish within the metropolitan planning area outside any incorporated municipality, as the case may be, into districts or zones of such number, shape, and area as it may determine and, for such purposes, may regulate the erection, construction, reconstruction, conversion, alteration, and uses of buildings and structures and the uses of land. All such regulations shall be uniform for each class or kind of building throughout each district, but the regulations in one district may differ from those in other districts.
La. R.S. § 33:140.205