Fred Katz, developer of the Higgins Marketplace, believes he will begin construction on the South County project that calls for 75,000 square feet of commercial space in 2014. “Something is happening,” Katz said. In 2009, Katz, owner of Roseville-based FHK Properties, obtained approval to begin construction on a project that includes plans to build an approximately 57,000-square-foot supermarket, originally slated as a Bel Air Market, flanked by smaller retail structures on a 20-acre lot behind the CVS Pharmacy at Combie Road and Highway 49. However, a lawsuit filed by a group called South County Citizens for Smart Growth filed in …