Zirkuläre Bewertungsmethoden im Vergleich

Abstract This article for BauNetz Wissen presents a comparative overview of circular assessment methods in architecture and construction, focusing on tools that evaluate the reuse potential, material circularity, and long-term sustainability of buildings. The contribution examines established frameworks and emerging digital instruments, analyzing their underlying criteria, calculation logics, and practical applicability in early design phases as well as in later planning and certification processes. By contrasting qualitative and quantitative approaches—ranging from material passports and disassembly indices to life-cycle-based scoring systems—the article highlights differences in transparency, data requirements, scalability, and decision-making value for architects and planners. Special attention is given to the relationship between circular metrics and architectural design parameters such as structural reversibility, separability of components, and adaptability of spatial systems. The study argues that no single method provides a comprehensive solution; instead, the strategic combination of tools enables a more nuanced evaluation of circular performance. The article positions circular assessment not merely as a technical verification step, but as a design-integrated methodology capable of shaping architectural thinking toward longevity, resource efficiency, and systemic sustainability.