No person shall erect, construct or proceed or continue with the erection or construction of any building or structure or cause the same to be done in any newly annexed territory to the city without first applying for and obtaining a building permit or certificate of occupancy from the building official or the city council as may be required.

No permit for the construction of a building or use of land shall be issued by the building official other than a permit which will allow the construction of a building permitted in the "A" agricultural district, unless and until such territory has been classified in a zoning district other than the "A" agricultural district, by the city council in the manner prescribed by the law.