— By Jennifer Morris — Fast-casual concepts breathing new life into historic buildings. In the competitive restaurant industry, it’s often a challenge for concepts to break away from the pack. The dining experience and brand identity aren’t solely limited to the cuisine and culinary approach, but rather also developed through the site, decor and ambiance. Looking to differentiate themselves, many fast-casual concepts are taking the approach of choosing older, historical buildings to invest in, as opposed to commercial space that is new, modern or sleek. In the process, …