Among the largest projects in the airport’s history, this major renovation and addition to the terminal will increase the size of the space by 40%, while cutting energy needs per square foot by more than half. In pursuing energy efficient and decarbonization goals, the system designs include extensive daylighting, a ground source heat pump, and a beautiful cross-laminated timber (CLT) rooftop. The new terminal core has been designed with several nature-inspired elements that showcase the beauty of the Pacific Northwest and provides an inviting space for passengers to enjoy.