I am asked again and again if this wall is a legal wall and about the exact location of it. To say it once and for all: No, this is not a legal wall and it is not allowed to paint it spontaneously. I don’t know who the owner is, but the concept of protecting this wall from graffiti by high class graffiti is definitely working. DEMON, THE TOP NOTCH & friends make sure. They make it a graffiti gallery, which is located in Essen Steele. Entrance is for free.