Sustainable architecture practice has become mature enough that there are now formal systems of performance guidelines, sample contract specifications, and guidelines for evaluating architect and engineer practitioners. Numerous case studies are available to demonstrate how the strategies fit together.

The generation of planners and developers working today have a critical responsibility at a time when the natural resource base teeters on the brink of irreparable harm and when social disengagement is at history's highest levels. A sea change of development practices around the country toward sustainable development will have an enormous positive impact on the quality-of-life legacy our generation leaves for the future.