Zoning ordinances divide a city into separate residential, commercial, and industrial districts, thereby preserving the desirable characteristics of each type of setting. These laws generally limit dimensions in each zone. Many regulations require certain building features and limit the number and location of parking and loading areas and the use of signs. Other regulations provide space for schools, parks, or other public facilities.
Zoning helps city planners bring about orderly growth and change. It controls population density and helps create attractive, healthful residential areas. In addition, zoning helps assure property owners and residents that the characteristics of nearby areas will remain stable.