The whole consortium of REZBUILD, the new European project in which CARTIF works on funded by the Horizon2020 Programme of the European Commission, has celebrated its kickoff meeting in Rome. Under the coordination of Officinae Verdi Group (Italy), the 13 members from five different countries have established the steps to start to work on final objective: the development of an innovative and collaborative refurbishment ecosystem for transforming buildings into Near Zero Energy Buildings (NZEB). The developed tools and technologies will be applied on the four main residential building typologies in Europe: single-family house, terraced house, multi-family house and apartment block.