For the purposes of this definition, "substantial improvement" is considered to occur when the first alteration of any wall, ceiling, floor, or other structural part of a building commences whether or not that alteration affects the external dimensions of the building. The term does not, however, include either any project for improvement of a structure to comply with existing state or local health, sanitary, or safety code specifications which are necessary to assure safe conditions or any alteration of a structure listed on the National Register of Historic Places.
Fla. Admin. Code Ann. R. 40B-4.1020
Rulemaking Authority 373.044, 373.113, 373.171 FS. Law Implemented 373.019, 373.403 FS.
New 9-25-85, Amended 12-22-92, 10-3-95, 5-13-07, 2-28-12, 10-14-13, 1-5-21.