geared to magazine photographs and quick-buck marketing. Despite the so-called organic architecture that he espoused, even Frank Lloyd Wright intended his buildings to be de facto museums with no capacity for user input. Mainstream design goes cheap in structure, and extravagant in finishes. Adaptive design goes substantial and durable in structure, and inexpensive in finish, allowing users optimal scope for providing their own. As Brand points out, the modernist maxim of form follows function was always a bit of a farce, since architects and developers were never truly interested in the needs of building users. By contrast, todays green designers (Sim Van der Ryn & Pena, 2002) are making a case for form follows flow as the key principle of healthy ecological designand so emphasizing the importance of adaptability.