The purposes of this Planning and Zoning Code and the intent of Council in its adoption are to promote and protect the public health, safety, convenience, comfort and prosperity, and the general welfare of the City, by regulating the use of buildings, other structures and land for residences, public facilities, institutions, business services, industry or other purposes, by regulating and restricting the bulk, height, design, percent of lot occupancy and location of buildings and by regulating and limiting population density, and, for the aforesaid purposes, to divide the land within the City into zones or districts of such number and dimensions as are in accordance with the objectives of a comprehensive plan, and to provide procedures for the administration, interpretation, amendment and enforcement of this Planning and Zoning Code.