Abstract: System and method for localizing a zone wherein wall modules, terminator support modules, column modules and spanner modules are arranged to define one or more zone boundaries. The modules are structured as polymeric shells. The wall modules and terminator support modules are configured with integrally formed tongue-and-groove joints and when used with outdoor zones may be filled with a ballast such as a liquid. The columns are configured with receptor cavities at their tops to receive roof-defining canopy structures, sight simulators and the like.