No excavation shall be commenced; no wall, structure, premises or land shall be used; no wall, building or structure or part thereof shall be built, constructed or altered; nor shall any building be moved; nor shall any regulated sign be erected, repaired or repainted until application has been made and the proper approval or permit has been obtained from the zoning administrator.

All applications for building permits shall be accompanied by the appropriate fee as prescribed by separate action of the Board of Supervisors (see § 2-2 of this Code) and accurate plot plans in triplicate drawn to scale, showing the actual shape and dimensions of the lot to be built upon, the exact sizes and locations on the lot of the structures and accessory structures then existing, and the lines within which the proposed building or structure shall be erected or altered, the existing and intended use of each structure or part thereof, the number of dwelling or housing units the building is designed to accommodate, and such other information with regard to the lot and neighboring lots as may be necessary to determine and provide for the enforcement of this ordinance.

Editor's note— The words "shown on the next page" were removed and "as prescribed by the Board of Supervisors (see § 2-2 of this Code)" inserted; no change in substance made.

No permit shall be issued for the erection of any permanent structure intended for residential, commercial or industrial use, nor shall any such structure be erected on land in such proximity and relative elevation to an open stream or drainage channel when the surface of such land is subject to periodic or recurring flooding from storm water, or subject to the danger of erosion of the land underlying such structure. This provision shall not apply to the erection of fences or similar appurtenances. Nothing herein provided shall be so construed as to prohibit the owner of such land from lawfully filling, draining or otherwise improving the land.

In order to determine whether or not a permit should be issued under this Article, the zoning administrator in appropriate cases may require that the application for a building permit be accompanied by a topographic survey of the lot showing existing and proposed grades.