For building sustainable city, the recovery of the green, such as farming land and timberland, and a creation of a comfortable environment is the most important factor. Different from the past age when architecture required an environmental sacrifice, in this century of the environment, an architectural design which lessens the burden on the environment by using natural energy and can also be sustainable to time is required.
The idea of this design book is to present those sustainable buildings such as, zero-emission refined building, passively designed energy-saving building and green building that contributes to the protection of the organisms' diversity and the recovery of the nature, which the Japanese architects have been introducing to the world. These buildings exist as, and will remain as the place of recreation and relaxation. I wish this book will serve as a useful reference for many students who will learn design from now on..