Room for Reuse

The reuse of building parts is vital to reducing the construction sector's contribution to global CO2 emissions and waste generation. However, a precondition for a large-scale implementation of reuse processes is the existence of a so-called "built infrastructure", which includes spaces for transfer, temporary storage, and preparation. At present, there is a lack of both theoretical research and built examples that cover such a typology. Consequently, an urgent need to close the significant knowledge gaps regarding the characteristics of such an infrastructure is evident.

The project entails a comprehensive investigation of reuse processes and future resource flows within the construction sector to identify spatial requirements and potentials for the built infrastructure. Its primary objectives are twofold: first, to cultivate a more profound comprehension of the fundamental requirements of circular construction hubs, and second, to design conceptual and planning frameworks. Following a literature review at the beginning, spatial requirements are examined by analysing the circular value chain in the construction sector, logistical issues, and the preparation of building components during the reuse process. Based on this analysis, a logistics system for circular construction hubs is developed by introducing specific "building component categories". The formulation of a "circular value creation network" is accompanied by the development of a spatial program and representative room typologies, which merge the findings from the preceding research and analysis. After the examination of functional and technical requirements, the focus shifts to the spatial potential of the built infrastructure. The design of an exemplary circular construction hub in an existing industrial building in Munich, Germany serves as a case study to allow for the application and testing of earlier concepts in a practical context. The configuration of diverse functions within the existing building, in conjunction with specific spatial and visual connections create an interplay of different uses across various levels in an alteration of open and enclosed spaces. The case study thus demonstrates the interaction among various circular construction hubs at a spatial level and highlights the socio-cultural potential of the built infrastructure.