A.   The planning commission shall also act as the zoning commission, which shall have the power to prepare and to recommend to the city council for adoption a zoning plan to regulate and restrict the height, number of stories and size of buildings and other structures, the percentage of lots that may be occupied, the size of yards, courts and other open spaces, the density of population, the location and use of buildings, structures and land for trade, industry, residence, and other purposes. (1992 Code § 12-108)
   B.   The planning commission may recommend the division of the city into districts of such number, size and area as may be deemed best suited to carry out the zoning plan. All such regulations shall be uniform for each class or kind of buildings throughout each district, but the regulations in one district may differ from those in other districts. (1992 Code § 12-109)
   C.   Zoning regulations shall be made in accordance with a comprehensive plan and designed to lessen congestion in the streets; to secure safety from fire, panic and other dangers; to promote health and the general welfare; to provide adequate light and air; to prevent the overcrowding of land; to avoid undue concentration of population; and to facilitate the adequate provisions of transportation, water, sewerage, schools, parks, and other public requirements. Such regulations shall be made with reasonable consideration, among other things, as to the character of the district and its peculiar suitability for particular uses, and with a view to conserving the value of buildings and encouraging the most appropriate use of land throughout the city. (1992 Code § 12-110)