AD infrastructures and experimental areas evolutions in the context of ELENA development

With the ongoing installation of the ELENA machine in the CERN AD facility, the AD infrastructures must be adapted to support 20 more years of exploitation of the facility with improved conditions for most experiments. The first stage of improvements has been completed in 2015 (new control room building with cafeteria and conference room, annex building with storage space for experiments and cleaning room), together with an improved circuit to welcome visitors to this very popular place at CERN. The second stage of improvements will be presented, detailing the enlargement of existing experimental areas (ALPHA, ASACUSA, and BASE), installation of new experimental areas (for GBAR and possibly AEGIS 2) and maximization of usage of AD ground floor space for physics.