This project is mainly built on sustainable urbanism which refers to sustainably planning urban areas. In particular, sustainable refers to the urban design and planning centred on the natural environment and ecosystems. The CONTRIBUTE project is centred on the principle of making cities and human settlements safe, resilient, inclusive, and sustainable. It is based on the need to encourage re-use practices, i.e. revival of abandoned structures or areas, conversion of current urban assets, for a more sustainable and environmentally friendly approach towards urbanism. In response to this need, the CONTRIBUTE project aims to improve social cohesion based on a shared economy and create new synergies between the public, private, and social actors. It also aims to promote training and education opportunities among youth to increase their knowledge and awareness of green cities and urban sustainability through the creation of urban gardens. Furthermore, it will improve youth’s employability skills by blending entrepreneurship and green urban actions. Finally, it will address ecological issues with widely accessible, cost-free, and user-friendly modern and creative solutions.