The purpose of this title is to establish a zoning plan and regulations implementing the general plan and regulating land use within the town and certain unincorporated areas that may be prezoned pursuant to the California Government Code. This title divides the Town of Atherton into zoning districts consistent with general plan land use designations. It further provides regulations for uses, height, bulk, setbacks, open spaces, size of buildings and structures, and population densities. These regulations are necessary for the orderly use of land, for the provision of adequate light and air, to prevent overconcentration of population, to provide adequate community facilities and utilities, and to promote the public health, safety, and general welfare. (Ord. 582 § 1 (Exh. A (part)), 2009)