Analyses of disciplines encompassing futures studies reveal a prevailing tendency to perceive time as a linear sequence of projections. However, this perspective is not applicable to the current context of social transformation in the age of globalization and digitization, such as sustainable development. Preliminary investigations into time-based design and futures studies have shown the potential of time-based paradigms for predicting reliable future scenarios and redesigning current forms of spaces, relationships, and services in response to these desired futures. In this paper, we describe a project of an Ephemeral and Temporary Space Design Laboratory, which has been a pedagogical experiment for 3 years to date in the School of Design at the Politecnico di Milano. The objective of this project is to systematically design an area of the city by reflecting on the relationship between design systems and social change, using participatory design methods such as field research and interviews with local residents to systematically redesign the urban space of the Lodi/Corvetto area in the city of Milan. This research aims to investigate the systematic influence of time factors on the spatial design of urban communities through futuristic and time/space-based design perspectives. The findings demonstrate that the utilization of time-based paradigms and tools can effectively enhance the time-based design approach, resulting in its increased integration within the design process. This integration plays a pivotal role in the construction of systems that have the capability to interact with and catalyze social transformation within the broader public and shared community.