‘Material and Building Passports as Supportive Tools for Enhancing Circularity in Buildings’ explores how material passports (MPs) and building passports (BPs) have become essential tools for advancing the circular economy in construction, within the context of the green and digital transition promoted by the European Union.

These passports compile detailed information on materials, components, and building characteristics throughout their life cycle, enabling design optimisation, easier maintenance, and planning for reuse, recycling, and recovery at end-of-life.

The chapter outlines their historical development, existing variants and standardisation efforts, as well as their integration with digital technologies such as BIM, which enhances traceability and decision-making. It also examines practical applications in design, operation, and demolition, alongside European initiatives such as BAMB, Madaster, and the Digital Building Logbook.

Benefits include transparency, efficiency, and waste reduction, but significant challenges remain: lack of common standards, interoperability issues, high initial costs, limited stakeholder collaboration, and low awareness of the concept.

Passports are vital for achieving more sustainable and circular buildings, yet they require clear regulatory frameworks, viable business models, and a sector culture focused on innovation and digitalisation.