Plans to transform the nearly 100-year-old Dittlinger building into a new mixed-use development to include restaurant, office and entertainment space is expected to transform the area along East San Antonio Street in downtown New Braunfels. “It’s more of an adaptive reuse of the building. It’s going to align really well with New Braunfels,” said Andrew Douglas, principal for San Antonio-based Douglas Architects, which is involved in the Dittlinger redevelopment and multiple other projects in that city. “It’s going to become a much more active area.…”