Inside the huge building at the Bahnhofstrasse a demolition of all floors and walls was necessary in order to adapt the house to the requirements of fire safety and the current building codes. In order to obtain appropriate recreational areas additional rooms were necessary created by a roadside bay providing views alongside the Bahnhofstrasse and generous natural lighting.

On the courtyard side a walkway connects the old building at all floors with the new one. The roof was completely removed and re-attached as a timber construction.

All attachments use the same language in terms of material and structure. A white, smooth aluminum facade differs clearly from the rough plaster facade with its moving concrete structures by shades of white and a play of light and shadow. It shows itself representative towards the street and as a firm contrast to the wooden exterior of the new building. Old and new form a small courtyard at the entrance of the new building.