This title is designed and enacted in accordance with the comprehensive plan for the territory lying within the boundaries of the city to designate, regulate and restrict the erection, construction, reconstruction, alteration, location and uses of buildings and the uses of land for trade, business, industry, residence, recreation, public activities or other purposes; to regulate and restrict the height, number of stories, size and bulk of buildings and other structures hereinafter erected or altered; to regulate and restrict the height, bulk and location of objects of natural growth where such objects are deemed to be hazardous to life or property; to regulate and determine the size of lots, courts, yards and other open spaces and the percentage of the lot that may be occupied; and to regulate the density and distribution of population and for such purposes to divide the city into zones or districts of such numbers, shape or area as may be deemed best suited to carry out these regulations and provide for their enforcement. (1989 Code § 12-1-003)