Building biology is an essential part of modern architecture. Modern building means making use of the latest know-how so that future residents can enjoy the highest possible level of comfort – at affordable prices. For both private and public building contractor authorities, the acquisition of the support of trained building biologists is a sensible investment. After all, people want to live and work in not only beautiful, energy-efficient, and rugged houses – they want their living and working environments to be healthful, too. Health has a high value, and building biologists help achieve this goal. (written by architect Bernhard Oberrauch)