The 5th Plenary Meeting of the Concerted Action EPBD V was held online from 26 to 28 May 2021 to discuss issues on the implementation of the Energy Performance of Buildings Directive, which concern the 27 Member States of the European Union as well as the United Kingdom, Norway and the European Commission. Sympraxis Team, who had also supported the previous corresponding meeting, undertook the overall technical support of the 5th Plenary Meeting during the 3 days of its realisaton, supporting in total approx. 250 participants of a closed community of representatives of the national ministries responsible for the preparation of the technical, legal and administrative framework for the Directive.