Born from the multiplication of large-scale urban planning projects and the implantation of various modernist architectural works in California, skateboarding has been authentifying the spaces in which we’re moving and living, adjourning « the implicit power in each building, space, object or piece of urban furniture; skaters reduce the city to its essence : a game-like collection of materials put into form. » (Zarka [2007] 2010, 65). Deconstructing and recomposing the performative grammar of urban architecture on a sensitive mode, skateboarding is an exemple of the «possibilities for life» within urban sprawls.