(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)