With its basic polygonal structure the theater was often mentioned in contemporary literature as an example of how architecture can blend with its surroundings, unlike the International Style buildings, that many perceived as decontextualized structures. Auditorium and foyer are largely preserved in their original guise. 

Sheet metal cladding for the exposed concrete shell of the stage section since the 1980s (supervised by Hämer), heritage listed since 2002, minor renovation in 2002–2005, current controversial discussions about future renovations. (Special thanks to Marianne Mang)