The registration statement shall at least contain a description of the existing use and/or structure, a designation of the zoning district, names and addresses of the landowner at the time of the adoption of this chapter and at the time of registration, a deed reference to the land involved and the way in which the use or structure is nonconforming, together with all applicable dimensions. The form shall be as prescribed by the Zoning Officer. Before permitting registration of any nonconforming use or nonconforming structure, the Zoning Officer may, at his discretion, examine or cause to be examined all buildings, structures, signs or land and portions thereof for which the proposed registration has been filed.