This paper describes an integral approach to flood-risk protection and spatial design that allows for an active involvement of landscape architects and urban designers in the allocation of flood-risk interventions within the Dutch Delta. The Dutch Rijnmond–Drechtsteden area is used as a case study to demonstrate how choices regarding the scale and layer of a flood-risk intervention can shift the location of that intervention. A spatial assessment framework is used to test the spatial impact of different flood-risk interventions at different locations, and determine where the intervention is most required from a spatial point of view.