A monograph documenting one of the biggest passive energy buildings in Belgium. This book retraces the history of this project and its construction in Louvain la Neuve, Belgium. AGC Glass Building is one of the biggest passive energy offices in Belgium. ACG Glass Building is a scientific work of reference for energy conscious construction. The sketches, drawings, photos and explanations show all the aspects of the realisation of an office supporting ecological sustainability. AUTHOR: Philippe Samyn is a civil engineer, architect and town planner with a PhD in Applied Sciences. He founded Philippe Samyn and Partners, architects and engineers, in 1980. Jan De Coninck regularly works together with Samyn and Partners. SELLING POINTS: ? A book for the professionals interested in sustainable construction 200 colour illustrations