Cohousing is a housing development movement that started in the late 1960s in Denmark, where it is called Bofaellesskaber or ‘living communities’. With increasing numbers of women going to work there was a desire to reduce the burden of housework, and in particular childcare and evening meals, through shared communal services. Cohousing is also seen to improve social relations and develop a sense of community. What started as a middle-class housing solution popular with young families, is now a well established housing model for all social groups, and has spread to a number of Northern European countries where governmental policy and funding has encouraged development. It is also becoming increasingly popular in the US, Canada and New Zealand, where cohousing has a more explicit environmental agenda, sharing many similarities with ecovillages but usually in a less radical, smaller and more urban version. Historically, cohousing has its roots in communitarian and feminist movements of the C19 and C20, including Charles Fourier’s phalanx, the co-operative housekeeping model developed by Melusina Fay Peirce and Ebenezer Howard’s Garden Cities movement.