The essence of my project is to present a prototype as a statement against the ridiculousness of building a permanent stadium used only or mostly during a major international temporary sports events. In which the inhabitants of the place gain no real benefit from the investments of such a building after the tournament is finished. My prototype of a modular stadium aims to be that benefit for locals of all ages. Where they can play a wide arrange of different sports and enjoy different events organized in the year. This could range from a food festival to extreme sports, from daily sports and leisure activities to being a platform for experimentational architecture or art exhibitions. The stadium provides the building blocks to form that basis. The objective is to research modularity to find design principles for the design of a multifunctional and adaptable stadium. Modularity can contribute to the circular economy through the use of a modular design and optimization of modules, generating benefits that can contribute to the implementation of strategies for the circular economy in order to maximize the lifecycle of a product. It is a way of giving order and solutions to complex problems of achieving adaptability. Such strategies will be researched for a new stadium typology. Which accommodate for the afterlife use of a stadium for a major temporary sports event. That could benefit the city and its community on the long term. The context in which this will be designed is, the what-if scenario, of The Netherlands one day hosting the FIFA world cup or the Olympics.