Structures existing in any identified flood-prone area prior to the enactment of the chapter, but which are not in compliance with this chapter, may continue to remain subject to the following:
(a) Any modification, alteration, reconstruction or improvement of any kind to an existing structure, to an extent or amount of less than fifty percent of its market value, shall be elevated and/or floodproofed to the greatest extent possible.
(b) Any modification, alteration, reconstruction or improvement of any kind to an existing structure, to an extent or amount of fifty percent or more of its market value, shall be undertaken only in full compliance with the provisions of the chapter.
(c) No expansion or enlargement of an existing structure shall be allowed within any floodway area that would cause any increase in the elevation of the one hundred (100) year flood elevation.
Any modification, reconstruction, or improvement, or any kind to an existing structure, to an extent or amount of fifty (50) percent or more of its market value, shall constitute a substantial improvement and shall be undertaken only in full compliance with the provisions of this Chapter.
(Ord. 79-6. Passed 8-20-79; Ord. 2009-04. Passed 10-19-09.)