The main topic of the work is the interpretation of feelings related to the issue of disappearing landscape values at the expense of uncontrolled extensive development of suburban areas. It is a subjective thought product of several years of experience in architectural practice, including, among other things, one's own participation in a similar invasive construction. This empiricism has resulted in the constant questioning of ethical conduct and responsibility. The key terms are suburbanization, urban sprawl, development, satellite town, outskirts, transformation of the aura of a place in „non-aura“. An integral part of the work is represented by considerations about the general position of the object within the hierarchy of (sub)urban space. The object does not mean only positive examples in the form of aesthetic, orientation or vegetation elements. The focus is also on its averted form — waste, utilitarian technical and functional elements or, for example, the seemingly endless colonization of public space by cars. Colonization of our minds. All spatial objects are also psychotropic. Their mental impact can be beneficial, arousing affect or emotion. But what if the objects in the public space are completely missing? The urban object is not far from the position of an artifact, a prop of everyday life, which does not belong to a person physically, but mentally.

Cette thèse pose la question de la modification de l’image de la cité d’habitat social, à partir du constat du développement de pratiques touristiques et artistiques en son sein et dans les marges métropolitaines en général. C’est donc plus globalement l’hypothèse d’une revalorisation des lisières socio-spatiales qui est traitée. La cité d’habitat social, plus encore lorsqu’elle s’incarne dans la forme du grand ensemble des décennies 1950-1970, condense le discrédit et donc l’enjeu du questionnement ici traité : les pratiques touristiques et artistiques analysées signent-elles la mise en circulation d’une nouvelle image des cités qu’elles explorent ? Corrélativement, dans quelle mesure peut-on parler de pratiques pionnières ? A partir d’enquêtes sur des terrains marseillais (quartiers nord), parisiens (banlieue populaire des Nord et Sud-Est de Paris) et montréalais (l’ensemble d’habitat social Jeanne-Mance), la thèse expose que ces détours « récréa(r)tistes » interrogent la fabrique de la (re)connaissance des espaces stigmatisés et sont à ce titre porteurs d’enjeux politiques, esthétiques et économiques. / This thesis concerns the development of tourism and art practices in the metropolitan outskirts, in particular in the social housing projects (1950-1970). The central question addressed is : how can tourism and art be a factor of promotion of districts stigmatized by media and political discourse ? Are the studied practices pioneering ? To answer these questions, we selected three fieldworks: the northern suburbs of Marseille, the Northern and South-Eastern suburbs of Paris and a Canadian public housing project, the Habitations Jeanne-Mance in Montréal. Our qualitative study explains that the development of tourism and art practices in the edge of the metropolis questions the production of knowledge on stigmatized areas. Therefore, they involve political, aesthetic and economic issues.