HOUSING LOOPS, a+t research group's critical chronology of living conditions
A timeline runs through five scenarios Opulence, Precariousness, Dignity, Prosperity and Fraternity
April 22, 2025

This research by a+t research group proposes an alternative reading of the history of housing. Rather than being organised around architectural styles or movements, it is structured through five essential conditions that define the lived experience of inhabitation: Opulence, Precarity, Dignity, Prosperity, and Fraternity.
Drawing on 178 case studies—ranging from the onset of the Industrial Revolution in the mid-eighteenth century to the second decade of the twenty-first—this critical chronology maps the evolution of collective housing in relation to the social demands of each historical period. The timeline identifies key patterns in housing design, recurring spatial loops that transcend eras, advances in construction technologies, and the transformation of the domestic unit as a nucleus of cohabitation.
In HOUSING LOOPS, the past and present of collective housing are represented simultaneously, revealing unexpected connections between projects and architects who, across different contexts, have shared the aspiration to offer shelter, to conceive housing as a complex artefact where form, time and space converge, and which, beyond fulfilling individual needs, seeks to emerge as a collective proposition for living together.
a+t research group was founded in 2011 by Javier Mozas and Aurora Fernández Per. Their body of work includes 10 Stories of Collective Housing, a graphic analysis of ten residential masterpieces; This is Hybrid, a study on mixed-use buildings; and Before is Before, an exploration of landscape and public space strategies. Both have directed the architecture magazine a+t from 1994 to the present.