Hingham Planning Board and Zoning Board of Appeals approved a CrossFit health club for space in the Industrial Complex at Pond Park Road. At a joint meeting on Monday, both boards approved the special permit without much dispute. A written decision will come within a few weeks, which will prompt a 20-day appeal period. According to Emily Wentworth, senior planner for zoning and special permits, all building permits will be held until the appeal period expires, and then construction can begin. The health club will mainly be outfitting the inside of the space, and there won’t be significant changes to the building, Wentworth said.