World War II was pivotal in human history, leaving a profound political and social impact. Its conclusion marked a significant turning point, leading to post-war suburbanization and the baby boom. These phenomena resulted in rapid urban growth and a surge in housing construction, which peaked in the 1960s and continued to flourish throughout the following decades, gradually slowing down until the present day. Currently, we are facing a very different scenario in which a backlog of affordable housing, combined with a challenging economic outlook and a climate agenda, have led to the need for a transformation of the built environment into a cleaner and more resource-efficient one, in line with the Paris Agreement.
Thus, with the ever-increasing demand for housing, combined with policy initiatives such as the European Green Deal, the post-war model of hyper-production is becoming unsustainable. Consequently, refurbishing derelict or redundant buildings has emerged as a viable alternative. Unlike the scheme of demolition and new construction, this approach offers opportunities for energetic retrofitting, which helps mitigate environmental obsolescence, extend the lifespan of buildings, and revitalize the existing and dilapidated stock—including postwar housing—while improving people's quality of life.