Part Eleven of the Codified Ordinances (referred to as “Part” hereinafter) is enacted for the purpose of promoting the public health, safety, morals, convenience, and general welfare establishing land use classifications; by dividing the City into districts, imposing regulations, restrictions, and prohibitions on the use and occupancy of real property; by limiting the height, area, and bulk of buildings and other structures; by providing for yards and other open spaces around them; by establishing standards of performance and design; and by providing for the administration and enforcement thereof.