(A)   It is unlawful to use or occupy any building or premises without a certificate of occupancy. An application for an improvement location permit shall, without an additional fee, include and be deemed an application for a certificate of occupancy.
   (B)   A certificate of occupancy shall be obtained before any person may:
      (1)   Occupy or use any vacant land;
      (2)   Occupy or use any structure hereafter constructed, reconstructed, moved, enlarged or structurally altered;
      (3)   Change the use of a structure or land to a different use; or
      (4)   Renew, change or extend a non-conforming use.
(2004 Code, § 3-404)