This paper examines three failed bids by the French Olympic Committee and the City of Paris to host the summer Olympic Games of 1992, 2008 and 2012 in an attempt better to understand the role of heritage designations in the context of urban change. Introducing the various sites earmarked for the Games, the paper explores the relationship between planning as a political tool and its impact on the built environment within the context of a complex web of local, national and international demands, needs and aspirations. Based on archival research, the paper explores the dialectical relationship between the demonstrated ability of city councils to declare designated Olympic' spaces as functionally ready' to absorb massive new infrastructures and questions posed by whatever physical infrastructure remains after a bid has failed. Since the timeframe chosen for the paper (19862006) coincides with a move by the International Olympic Committee to prioritise sustainable urbanism' as a key legacy of successful' Olympic Games, this relationship between presences and absences is mediated not just with the help of possible futures in the form of Olympic sites but has had to validate and justify the choice of terrain as well. The paper concludes with a brief meditation on the relationship between present urban heritage and possible futures in the context of mega-events like the Olympic Games.