Keywords:Modern Movement, Modern architecture, Modern housing
“Should the grands ensembles be demolished?” This question was a major preoccupation for architects in the 1990s. Incidental as it may seem today, the question is not completely old hat. The initial, progressive shift towards the practise of maintenance is to be welcomed. But we still need to be conscious, looking forward, that the qualities or values of constructions built between 1945 and 1975 are only rarely recognized and safeguarded. A tremendous variety of strategies have been adopted, and this thematic issue on collective housing's present-day relevance proposes to revisit, on the European scale, this very multiplicity of approaches.