The wealth of information available in the building and construction sector has so far been poorly digitised and fragmented across the industry. The EU wants to provide a digital building logbook, a common data repository for all this information on a transnational level. In future, it will serve as a common repository for all relevant data throughout the entire life cycle of a building. The digital building logbook is a first step towards life cycle-based construction and renovation. It facilitates the reuse of building components and the dismantling of building materials and supports the utilisation of building stocks as ‘material banks’.