Researchers often think that their research has some policy impact and that housing politicians do something sensible when they read their work (at least their conclusions) and base their policies on research. They give the impression that research programs lead to (changes in) housing policies, and even that a housing research agenda may trigger a housing policy agenda, immediately or after some time. Based on our experience in the Netherlands, we would argue that it is mostly the other way around housing policy agendas lead to housing research agendas: research follows policy. The definition of housing problems in housing policy largely determines which aspects are investigated and even how researchers regard housing phenomena. We will illustrate this general statement with the case of the Netherlands after the Second World War, where we can observe a broad development from urban development to urban renewal and recently from urban renewal to urban restructuring.