§ 150.46  ADDITIONS AND IMPROVEMENTS.
   (A)    Additions and/or improvements to pre-FIRM structures, when the addition and/or improvements in combination with any interior modifications to the existing structure, are:
      (1)   Not a substantial improvement, the addition and/or improvements must be designed to minimize flood damages and must not be any more non-conforming than the existing structure;
      (2)   A substantial improvement, both the existing structure and the addition and/or improvements must comply with the standards for new construction.
   (B)   Additions to post-FIRM structures with no modifications to the existing structure shall require only the addition to comply with the standards for new construction.
   (C)   Additions and/or improvements to post-FIRM structures, when the addition and/or improvements in combination with any interior modifications to the existing structure, are:
      (1)   Not a substantial improvement, the addition and/or improvements only must comply with the standards for new construction;
      (2)   A substantial improvement, both the existing structure and the addition and/or improvements must comply with the standards for new construction.
   (D)   Where a fire wall or independent perimeter load-bearing wall is provided between the addition and the existing building, the addition(s) shall be considered a separate building and only the addition must comply with the standards for new construction.
(Ord. passed 4-2-2007; Ord. passed 6-7-2021)