This article discusses the impact of systems thinking and cybernetics on architectural design by examining the example of the Inter-Action Centre (1970–1977) of British architect Cedric Price. The centre reflects Price’s view of architecture as part of an extensive social and environmental system, or ecology, that influences the inhabitants’ mutual interactions and their relationship with their physical surroundings. Emphasising the link between material resources, technology and individual action, the project design implied a change both in the understanding of architecture and the architect’s role: from the designer of present-day artifacts to the designer of system interventions. Influenced by the cybernetician Gordon Pask, the systems...