My research deals with the production of urban space and urban environments in the Oslo area between 1980 and 2010. It is structured around a selection of case studies, with focus on the development of Tjuvholmen at the harbor-front of the city. The case studies selected are marked-driven, relatively large, mixed program and high profile urban area developments representative for the era, chosen for their value as critical cases - case studies of specific relevance for the thesis’ theme. The assertion is that marked-driven urban area development-projects in Oslo the last 30 years share distinct features, in terms of both the economical-strategies and development-mechanisms applied, that are representative for the economical and political climate they are produced in. This claim marks the point of departure for exploring the logics of the production of urban space in Oslo, suggesting that it is productive to discuss the built environment with reference to its constituting context : In order to evaluate and understand our contemporary physical environments, we need to explore how they came into being. The focus lies on the political, economical and social pre-requisitions of projects, problematizing the theoretical, conceptual and ideological frameworks of how these urban areas are conceived, produced, branded and sold. Thus, the thesis introduces a discussion of the relations between the on one side conceived and conceptualized project and on the other the built result, with an emphasis on the architectural profession as key actor for the production of urban space. The research will aim at providing new insights in to the production of marked driven urban environments in Norway, and discuss the contemporary urban morphology as a consequence of complex political, social and economical patterns and processes that saturates the built result. The goal is to provide knowledge of application-strategies and modes of production of urban space in current urban planning that can prove valuable and relevant for architecture and urbanism as both theoretical and practical disciplines. The thesis’ theoretical framework embodies a wide selection of literature and academic fields, which together constitute a backdrop for the research, while the methodology is largely based on the work of Bent Flyvbjerg and his conceptualization of the case study as research-tool.