They are organized in 7 categories – Climate Awareness, Active Recharging, Domestic Care, New Management, Urban Contexts, Living and Sharing, Iconic Identities – that precede a Covid epilogue. Seven interiors of the selected buildings are reproduced, all furnished, at a scale of 1:1.

The curators conducted a thorough study that involved cataloguing close to 2,500 apartment buildings in Europe. These were reduced to 54 cases in the book Housetag: European Collective Housing 2000-2021.

Through 28 paradigmatic examples of built housing organized around seven categories - Climate awareness, Active recharging, Domestic care, New management, Urban contexts, Living and sharing and Iconic identities - plus a Covid epilogue, it shows the fundamental concepts of the new habitability that are being developed in collective housing in Europe at the beginning of the 21st century, thus encouraging a debate that provokes reflection and the involvement of professionals, administrations and society in general.

The Master of Collective Housing "MCH" and the research group of Collective Housing "GIVCO" of the Polytechnic University of Madrid are the intellectual support of these collective works.