§ 154.11  DISTRICTS ENUMERATED.
   (A)   In order to regulate and limit the height and bulk of buildings hereafter to be erected; to regulate and limit the intensity of the use of lot areas, and to regulate and determine the area of open spaces, within and surrounding such buildings; to classify, regulate, and restrict the location of trades and industries and the location of buildings designed for specified industrial, business, residential, and other uses; to divide the entire municipality into districts of such number, shape, area, and of such different classes (according to use of land and buildings, height and bulk of buildings, intensity of the use of lot area, area of open spaces, or other classification) as may be deemed best suited to carry out the purposes of this chapter; to fix standards to which buildings or structures therein shall conform; to prohibit uses, buildings, or structures incompatible with the character of such districts; and to prevent additions to and alterations or remodeling of existing buildings or structures which avoid the restrictions and limitations lawfully imposed under this chapter, the village is divided into districts, of which there shall be eight in number, known as:
   "AA-1"  Single-Family Residence District
   "AA-2"  Single-Family Residence District
   "A"  Single-Family Residence District
   "B"  Single-Family Residence District
   "C"  Two-Family Residence District
   "D"  Neighborhood Shop District
   "E"  Central Business District
   "H"  Historic District
   (B)   The "H" Historic District is an overlay district in which additional regulations are imposed supplementing those of the other seven districts.