In 2004, CDI was selected by GRP Media to build its office at One East Wacker. In fact, ten years later, as evidence of our success, GRP Media called upon us again The project was so successful, that we were pleased to be called again ten years later to build their new 8000 s.f. loft style offices at 401 N. Michigan Ave.. The new offices feature innovative designs which include specialty lighting, mural art and integrated millwork.