For purpose of promoting the health, safety, morals or the general welfare of the parish of St. Bernard, the police jury of said parish is hereby authorized to regulate and restrict the height, number of stories, and size of buildings and other structures, the percentage of lot that may be occupied, the size of yards, courts and other open spaces, the density of population, and the location and use of buildings, structures and land for trade, industry, residence or other purposes within the parish.
La. R.S. § 33:140.51