(A)   This chapter is enacted pursuant to the authority granted by the Municipal Planning Act, M.S. §§ 462.351 et seq. The intent of this chapter is to ensure public health, safety and general welfare in accordance with the adopted development goals, plans and policies as stated hereto. This plan for the city is to ensure that the land uses of the city are properly situated in relation to one another, providing for adequate space for each type of development; to control the density of development in each area of the city so that the property can be adequately serviced by such governmental facilities as streets, schools, recreation and utilities systems; to direct new growth into appropriate areas; to protect existing property by requiring that the development afford adequate light, air and privacy for persons living and working within the city; to improve the quality of the physical environment of the city; to protect and maintain property values, and to preserve and develop the economic base of the city.
   (B)   This chapter is not in effect until the provisions of § 151.05 are complied with and notice and public hearing is provided as required by M.S. § 462.357 Subd. 3, as it may be amended from time to time.