The main aim of the research is to improve the knowledge about bearing timber-structural glass composite systems and also to design concept, which will be applicable as new bearing element in residential buildings. Because the behaviour of such systems is completely undefined for the seismic active environment, one of the objectives is to detect the principles of behaviour of composite panels for different boundary conditions as well as find out the technical requirements and application possibilities for the construction in earthquake-prone zones. Preliminary research has shown that certain composite systems can be used in seismic active areas (such as Croatia), but system optimization and parametric analysis haven’t been made yet. This project will upgrade knowledge related to the required dimensions of the elements and investigate new ways of connection of bearing elements as well as make the study about optimisation of certain parts of the panel. Also, an additional retrofitting system will be proposed. Preliminary tests of capacity, serviceability and behaviour during seismic load are already made, but in this research greater emphasis will be given on the analysis of energy efficiency of composite system. Those studies would enable conclusions necessary for making the prototype composite panel, which could be installed in real building what is also the final aim of the project. This type of hybrid element can be used as an independent element in the construction of timber structures as well as temporary or permanent strengthening and stabilizing element for the existing structures or objects of cultural heritage. So, it can be set up as an external or internal bearing element for structures in earthquake-prone zones or as an element for the construction of multifunctional and adaptive facade elements.