In the current condition of shrinking the post-industrial cities the future of numerous abandoned and underused territories is becoming a crucial urban issue. These terrains vague remain in suspension for uncertain time, waiting for a change. In the age of austerity, the trend to the more time-flexible and economically affordable bottom-up urban practices gains momentum, manifesting itself in many examples throughout the world. They are opposed to the wait of the realization of urban planning strategies with their bu-reaucratic complexity and financial issues and are aimed to produce the immediate environmental and social impact in direct response to the public needs.