For the purposes of regulating and restricting the use of land and the erection, construction, reconstruction, alteration, repair, or use of buildings and the location of buildings designed for specific uses, and regulating and limiting the height of buildings hereafter erected or altered, and regulating and determining the area of yards or courts, and other open spaces in connection with buildings hereafter erected or altered, the incorporated territory of the City of Garden City, Missouri, is hereby divided into the following districts, as follows: