The uses of a city zoning maps include finding out the zoning designation of a city's areas and learning about permitted developments on any site in the city. Possible permitted uses of the city's districts might include industrial, commercial, single and multifamily residential uses.
Zoning is used in cities as an administrative tool for planning and commercial development. Zoning regulations prescribe land use, including types of buildings allowed, parking areas and open spaces. Zoning is applied by ordinance. New York City was the first city to run a zoning ordinance in 1916. Other large cities followed suit and based their zoning policies on those of New York City. Since then, the demands on land in New York City and theories about city planning have changed. In 1961, a new zoning resolution came into effect in New York City.
The main features of this zoning resolution included encouraging businesses to provide public open spaces by allowing them to build higher, and a new model for tall office buildings. These were supposed to have large open floors whose size was regulated. Furthermore, the resolution aimed to reduce residential densities around the borders of the city. The factors that previously drove zoning were encroachment of industrial sites on residential areas and population growth. Population is still an issue, while car driving lifestyles have become a major factor.