The Netherlands exported in 2017 for 91,7 billion euros and exported for even more: 62,6 billion euros(CBS, 2018). This shows the big agri-food fl ows in which the Netherlands is involved. Sadly, these global fl ows have a big impact on economic, social and environmental sustainability worldwide. For example, transport causes many emissions, there is an unfair economic system that keeps farmers trappedand there is a lot of environmental damage. This is a situation that needs to change, but the Netherlands is also very dependent on the economy that the worldwide trade brings. This shows the problemthat South Holland is dealing with: The Netherlands is too much economic dependent on its agri-foodimport and export fl ows and is thereby causing economic, social and environmental sustainability challenges.This report proposes to DownScale international agri-food fl ows and Scale-Up a regional food system.The import and export fl ows are limited to only the European Union while food hubs and knowledgenetworks contribute to a system in which local food consumption and participation are important values. Waste, water and CO2 systems contribute to a circular approach of these DownScaled fl ows andthe production of seaweed helps to change the diet which is necessary to make a DownScaled systempossible. The report is supported by a sustainability triangle resulting from the nested sustainabilitymodel, the R-ladder of sustainability and the X-curve for a sustainable transition. A toolkit of interventions is designed as a strategy to achieve the vision goals. With DownScale-Up a new circular economywith DownScaled international fl ows and a Scaled-Up regional food system, is created by 2050. CBS (2018), De Nederlandse Landbouwexport, retrieved in March 2021, from https://edepot.wur.nl/434974#:~:text=%E2%80%94%20De%20export%20van%20landbouwgoederen1)%20wordt,1%20miljard%20euro%20in%202017

Individualism, the trend of prioritising individual interests over group interests, has significant implications for our urban environment, including spatial, environmental, and social unsustainable development. A shift towards collectivism represents a move towards sustainable development from these three perspectives. This thesis proposes a spatial redesign of the Bospolder-Tussendijken neighbourhood in Rotterdam, addressing the research question: “In what way can the shift from an individualistic towards a collective approach in urban design contribute to sustainable development from spatial, environmental, and social perspectives, focusing on Bospolder-Tussendijken?” The outcome demonstrates that a redesigned network based on the concept of the commons results in saved space and resources per individual. A neighbourhood designed to accommodate all urban activities can reduce reliance on car traffic, facilitating the creation of green spaces for the collective benefit of the community at the neighbourhood level, as well as smaller communities within. This transformation focuses on creating places of residence instead of places of going. Sharing becomes the guiding principle, manifested across various scales, from the entire neighbourhood as the largest scale down to individual housing units as the smallest. This approach enables people to form networks and communities across these scales. By creating space for porosity and flexibility, the design accommodates diverse needs, allowing individuals the freedom to arrange locations at different scale levels according to their preferences.