The main goal of REEHUB is to increase energy efficiency of the public buildings inside the Programme area, through a network of hubs, enabling the training of building managers on energy-efficiency measures. In addition, the project aims to guarantee suitable and effective communication to consumers and awareness-raising at all levels of society. The idea is to create public venues where all the stakeholders involved can find tangible examples on how citizens can contribute to a sustainable growth, aligned to circular economy principles. The ambitious results is to shift from old buildings to low-energy or zero-energy buildings.