As far as real estate franchises go, there are lots to choose from. Century 21, Coldwell-Banker, and Prudential are a few of the biggest. The biggest in the Charleston area is definitely Prudential Carolina real estate. They sell more houses than anyone else in the area – condos, single family, apartment, historical homes, restored mansions, plantation homes, even light commercial, restaurant, and retail real estate. I highly recommend checking them out!