S.C. Code Ann. § 6-29-720
(A) When the local planning commission has prepared and recommended and the governing body has adopted at least the land use element of the comprehensive plan as set forth in this chapter, the governing body of a municipality or county may adopt a zoning ordinance to help implement the comprehensive plan. The zoning ordinance shall create zoning districts of such number, shape, and size as the governing authority determines to be best suited to carry out the purposes of this chapter. Within each district the governing body may regulate:
(C) The zoning ordinance may utilize the following or any other zoning and planning techniques for implementation of the goals specified above. Failure to specify a particular technique does not cause use of that technique to be viewed as beyond the power of the local government choosing to use it: