Real estate brokerage Franklin Street is on the move — and the latest data on South Florida office space suggest it’s not alone.

When the lease on its 2,500-square-foot office in Plantation expires in December, Franklin intends to double or nearly triple its space to accommodate up to 100 employees. Its brokers are at work ferreting out 6,000 square feet of Class A space for the company whose primary business is trading investment-quality real estate.