In Dutch with parallel English translation.Includes bibliographical references (p. 261-263).Summary: Circumstances influence the design, the ideas and the methodology of an architect. In this book the architects Roberto Meyer and Jeroen van Schooten explain how their projects and architecture are made dealing with changing circumstances. Building techniques are constantly changing, products are being developed further, and sustainability is attracting increasing attention. These are the conditions under which architects have to work and to which they have to adjust their designs. Moreover, they are faced with a growing urban density, changes in the nature of the commission, and large-scale teams. "Circumstances" touches on the themes that influence the work, ideas and methodology of the Meyer & Van Schooten firm of architects.