This document discusses smart buildings and industries in Belgium. It describes several key industries in Belgium including materials industries, manufacturing industries, digital industries, aeronautics and defense industries, and building, contracting and technical services industries. It then provides more details on features of smart buildings, including energy efficiency, comfort, health, safety and security systems. It outlines the savings potential and payback periods of different energy efficiency measures for buildings. Finally, it discusses trends in smart buildings and the role of building information modeling (BIM).