Application for zoning permit. Any such application for a zoning permit shall be made in duplicate, shall state the use and occupancy proposed and shall be accompanied by 10 copies of all plans, drawn to scale, showing the actual shape and dimensions of the lot to be built upon, the exact size and location on the lot of all structures to be built on the lot and of any structures that are to remain, the nature of any proposed alteration, extension, removal, demolition or structural change, the proposed excavation or grading in connection with such building, the existing and intended use of each structure or part thereof and of any separate use of the land, the number of families the building is designed to accommodate, the estimated cost of any structure or improvement, and such other information with regard to the application that may be necessary to determine compliance and provide for enforcement of this chapter. If approval is required from the County Health Department or other agency for any such proposed work, such approval shall be obtained in writing and submitted along with the application for a zoning permit.