Today we attended the BIMERR kick-off meeting at Fraunhofer in Bonn. BIMERR will design and develop an ICT-enabled Renovation 4.0 toolkit comprising tools for AEC stakeholder support throughout the energy efficiency renovation process of existing buildings. It will enforce semantic interoperability among its own tools as well as with third-party ICT tools to enable seamless BIM creation and information exchange among the AEC community in an effort to boost the rapid adoption of BIM in renovating of the existing EU building stock.