The CircularB Action, funded by the European Cooperation in Science and Technology (COST), addresses the urgent need to accelerate the transition towards a Circular Economy (CE) in the built environment. The Action develops an international circularity framework designed for the inclusive operation and assessment of both new and existing buildings. It aims to support stakeholders across the construction value chain, designers, engineers, policymakers, contractors, and operators, in making informed decisions that align with the European Circular Economy Action Plan.
At the core of this framework lies a circularity rating tool, structured around KPI. These KPIs serve as benchmarks that can be adapted to diverse national and regional contexts, taking into account local conditions, cultural values, and traditions. By doing so, the tool not only facilitates sustainable design but also enables governments to evaluate and promote CE targets in line with European and global sustainability agendas.
Currently, CircularB brings together researchers, practitioners, and policymakers from over 35 countries to collaborate through Working Groups, short-term scientific missions, training schools, and workshops. These activities are fostering knowledge exchange, harmonization of definitions, identification of best practices, and the development of interoperable tools that can be applied across borders.
The expected impact of the Action is multifold. Scientifically, it will deliver an evidence-based framework and rating tool applicable at national and international scales. Politically, it will provide guidance for governments to monitor and accelerate CE implementation in line with the ECEAP and the EU Green Deal. Socially and environmentally, it will promote sustainable practices, reduce resource consumption and waste, and preserve the value of materials in the built environment. Industrially, it will support companies in adopting innovative circular strategies, opening new market opportunities, and strengthening competitiveness.