The Chief Building Inspector or any person designated by him or her shall conduct inspections and investigations necessary to enforce the Standard and may, at reasonable hours, enter into any building and upon any premises within its jurisdiction for the purpose of examination to determine compliance with this Article. Inspections shall be conducted only after permission has been granted by the owner or occupant or after a warrant has been issued pursuant to sections 29-830 to 29-835, Reissue Revised Statutes of Nebraska, 1943.