The underground parking garage in Tisinstrasse covers an area of around 600 m² and offers a total of 20 parking spaces. The recently completed repair work in the underground car park covered the main area as well as some of the adjoining side rooms. A KKS system with a combination of anode strips and rod anodes was used for this renovation work. Despite the comparatively small size of the underground car park, a total of 21 protection zones were required due to the number of areas to be treated. The Noxeco KKS system with its decentralized Smartboxes proved to be the ideal solution for these requirements.