A study from the German Energy Agency-Dena, based on a survey among decision makers of 20 important office building investors and 20 major renters of office areas in Germany has resulted in sustainability and energy efficiency becoming more and more important; yet the main decision criteria are still economic. The investors aim at high building values and low operation costs and high renting demand. These are the main reasons for the energy renovation of their buildings. The users on the other hand see environment and sustainability aspects as part of the culture of their organisation and therefore as benefit to their image.
Learn more about the dena study (in German) here.