The development of the Tandetron Laboratory has been divided into three phases. Phase 1 was financed by the Infrastructural Projects administered by the Hungarian Academy of Sciences, and has been completed in 2015. After this, the laboratory was already operational, with a limited range of ions and beam lines. Phase 2 was completed until May 2019, by using the support of an Infrastructural GINOP grant of the NKFIH (National Research, Development and Innovation Office). The facilities of the Laboratory has been extended by several new ion sources and beam lines, giving rise to a wider variety of research activity in basic and applied research. Phase 3 encompassing various auxiliary facilities was/is in the planning stage in 2019.