Eduard van der Nüll (9 January 1812 (baptized) – 3 April 1868) was an Austrian architect, who was one of the great masters in the historicist style of Vienna's Ringstrasse.
While Sicardsburg handled primarily practical and technical questions, van der Nüll was responsible for issues of decoration and aesthetics.
Their design failed to match the monumentality of the Heinrichshof opposite (destroyed in World War II, and in 1955 replaced by the Opernringhof).
Criticism from both the Emperor and a press campaign against the pair of architects described the disappointment of the Viennese public and suggested that the building was merely a half-success.
It was said that the Emperor had been so shocked by the suicide of Eduard van der Nüll, that from then on he responded to all new art phenomena with the standard phrase, "It was very beautiful, I liked it a lot".