The Boulder Event Center is designed to provide a 5,000 square foot clear-span event area. The project is located in downtown Boulder next to the St. Julian Hotel on the roof of an underground concrete parking structure. The event center structure is designed to be lightweight to utilize the existing parking structure columns while being able to span such an expansive space. The design was inspired by a semi-rigid material being folded in a ribbon-like manner. The resulting fold provides a balcony over the entrance on one facade of the structure and light space between the adjacent building on the opposite side.