By Brian Court. Course Number WWOL017, Year Created 2014. Format: PowerPoint Video – Length: One Hour – Credits: AIA, all Canadian Provincial Architect Associations, HPO, EIC – Handout: Yes. The Bullitt Center, a six-storey heavy timber building, recently competed in Seattle, is predicted to be the world’s most energy efficient commercial building. In this presentation, Project Architect Brian Court will give a short overview of the LBC, discuss the design strategies for the Bullitt Center, and highlight structural and environmental virtues of the heavy timber structural system such as renewability, contribution to energy efficiency, and light carbon footprint.