In June 2015, the Joint Science Conference (GWK) approved the grant for the new research building “Center for Fundamental Physics (CFP)”. The new research building provides the necessary infrastructure for the expanded PRISMA⁺⁺ research program. It consists of two separate parts: Once completed, the CFP will offer office space and laboratory space on the one hand and an underground experimental hall on the other.

The underground experimental hall provides the necessary space and infrastructure for the MESA accelerator and its experimental facilities. The hall thus covers the additional space requirements resulting from the significantly expanded research program at MESA.

Some of the newly established work groups will be housed in the above-ground part of the new complex. In addition, special laboratories for detector development will be institutionalized there, including a clean room and an assembly hall where large detector parts can be assembled. A conference room and offices for visiting scholars and the PRISMA⁺⁺ administration will also be housed there.

In the spring of 2018, construction work began on the underground part of the CFP research building. In order to be able to build the experimental hall of the new MESA particle accelerator at a depth of ten meters, old ancillary and workshop buildings on the site of the Institute for Nuclear Physics first had to give way. The new workshops have already been occupied.