Ziegler Cooper Architects Acquires HBL FirmRealty News ReportAugust 3, 2015 by Realty News ReportAugust 3, 2015 HOUSTON – Ziegler Cooper Architects has merged with the Hall Barnum Lucchesi Architects (ZCA+HBL), according to Scott Ziegler, founding principal of Houston-based Ziegler Cooper Architects....