The location of the exposition was not very obvious - but that was part of the idea. It's the kind of exhibition which works by a network of creative people and those interested in their creativity - which in some cases is very specialized.
To have access to the exposition rooms, you had to go to the main gallery of art of the quarter to get the key.
Actually, the district of Hammerbrook/Klostertor was a very dense residential area before the Second World War. After having been destroyed by bombing in 1943, it was rebuilt in the post war decades as a commercial area. Only a small group of residential streets survived and it now is an island of culture and student living place in the heart of Hamburg.