The preliminary plat stage is the point in the process that all information pertinent to the proposed development is furnished by the developer for review by the city staff, city advisory committees, and the City Council, any other applicable agencies, and the public. The information provides a basis for approval or denial of the application. The information submitted in the application shall address both existing conditions and changes that will occur during and after development. The preliminary plat is a plan of how property will be subdivided and developed.