§ 38-21. Building standards for structures and buildings authorized adjacent to the future-conditions floodplain.

(a)

Residential buildings. For new construction and substantial improvement of any principal residential building or manufactured home, the elevation of the lowest floor, including basement and access to the building, shall be at least three feet above the base flood elevation or one foot above the future-conditions flood elevation, whichever is higher. Should solid foundation perimeter walls be used to elevate the structure, openings sufficient to automatically equalize the hydrostatic flood forces on exterior walls shall be provided in accordance with standards of section 38-19(e)(1).

(b)

Non-residential buildings. For new construction and substantial improvement of any principal nonresidential building, the elevation of the lowest floor, including basement and access to the building, shall be at least one foot above the level of the base flood elevation or at least as high as the future-conditions flood elevation, whichever is higher. Should solid foundation perimeter walls be used to elevate the structure, openings sufficient to automatically equalize the hydrostatic flood forces on exterior walls shall be provided in accordance with standards of section 38-19(e)(1). Nonresidential buildings may be floodproofed in lieu of elevation.

( Ord. No. 13-2016 , § 1, 11-14-16)