Hermann Baur was a Swiss architect . He is one of the most important Swiss church architects in the 20th century. After completing his apprenticeship with the master builder Rudolf Linder from 1910 to 1917 , he lectured at the ETH Zurich from 1918 to 1919 with Karl Moser and Hans Bernoulli.

According to Baur's plans, a number of significant public buildings and settlements have been created to date in the cityscape of Basel. In addition, Hermann Baur was especially responsible for more than 30 new Catholic church buildings. Inspired by Le Corbusier's Church of Notre Dame du Haut in Ronchamp, Baur developed a moving church space instead of the conventional rectangular ground planes by means of a shell construction, which also conveys a new, modern, content statement. "The free plastic form gives a strong contrast to the surrounding buildings. The 'whole other', the sacred of the church building, is also felt from the outside. But what had been done on the outside also had to be an answer to the spiritual situation and its requirements. It was necessary to create an ecclesia, a meeting room, in which the faithful should collect themselves in communion to celebrate the liturgy. " (Hermann Baur On the Bruder-Klaus-Kirche in Birsfelden)