The ISOVER Energy Efficiency Best of Awards have been created to recompense the best residential renovation projects, with the accent on innovation and measurable energy efficiency. The goal of the awards is to encourage the trend towards structures that favour comfort and environmental respect. The competition, taking place simultaneously in several European countries, is open to all building professionals, including architects, engineers, construction companies and investors. This document shows the projects of the 2009 edition of the competition, in which criteria were the following: • The awards are open to both residential and non residential buildings. • Renovation projects must cut energy consumption by at least 50%, compared to pre-renovation measurements. • New build projects must achieve the minimum energy requirements for very low energy buildings. • The project must have taken place (and be completed) between January 1, 2000 and December 31, 2008. • The project must include ISOVER products.