The project concerns the energy upgrade of the school building at 66 Agias Sofias Street, which houses the 36th Primary School and the 50th Kindergarten of Thessaloniki More specifically, it concerns interventions in the shell of the building, the replacement of frames with a new high energy efficiency installation of an external thermal insulation system with rock wool, thermal insulation of the roof, as well as in the electromechanical installations, the replacement of lighting fixtures with LEDs.