This major expansion and renovation of the Hughes Hall Science Center at Gonzaga University was undertaken to support growth of programs in chemistry and biology, facilitate expansion of research and teaching activities, and boost research and career opportunities for students and faculty. The facility includes teaching labs, classrooms, seminar rooms, computer labs and support spaces for chemistry and biology programs.  A phased plan was followed to allow the facility to remain in use throughout the construction period.  Phase I involved construction of a 30,000 square foot addition, followed by renovation of 46,000 square feet within the original building. The finished project results in a unified design solution that integrates new and existing construction in both interior and exterior designs.  The project redefines Hughes Hall and creates a center for the sciences at Gonzaga University that reflects the importance of these programs to the campus.