This paper proposes an extension of integration to the entire built environment. It is motivated by the need to appropriately respond to changes that impinge on and are caused by human civilization. An understanding of the consequences of change is crucial in the creation and management of a sustainable and resilient built environment, but no integrated model for this purpose exists. A proposal for an integrated model of the built environment, which draws from previous research on integration, is therefore presented. The potential benefits of this model and future research into its development and implementation are also outlined.