 Collective memory and projects for the redevelopment of public space 
This article explores the articulation between collective memory and the consideration of what already exists in the management of public space redevelopment projects, through the analysis of the blueFACTORY (Switzerland). After having noted a significant gap between the “recognized heritage” of the planning authorities and the “perceived heritage” of those who frequent the spaces being transformed, this paper questions the capacity of heritage regulatory instruments to integrate a set of elements which have been set aside and yet are invested with a symbolic value of heritage significance. We will also propose a methodology likely to broaden which elements are worthy of consideration for conservation, protection or enhancement in the framework of an urban project. Finally, the article concludes with a discussion on the opportunity to seize the collective memory (distant or recent) as an operational lever for enhancing the history of a place as well as the elements bearing symbolic and functional value.