In the location's words:

The Bürgerwache is the district center on Siegfriedplatz, in the middle of Bielefeld's west. There are rooms for groups, an outdoor restaurant in summer, political and cultural events and much more.
Do you have an idea for a working group, an event or open meetings? Talk to us or write to info[at]bi-buergerwache.de, we welcome suggestions and are happy to work together.