The striking buildings of Van der Steur are also involved in the restoration of the Maas Tunnel in Rotterdam. After our earlier advice on heating and ventilation, building physics and sustainability of the two garage buildings (North and South), we now also support in those areas with the restoration of parts of the ventilation buildings that fall in phase 2, in particular the control room. The combination of engineering art from the first half of the last century and architecture in the ventilation buildings is impressive.