Where is the official residence of the head of state of Germany?
Politics of Berlin:  The President of Germany, whose functions are primarily ceremonial under the German constitution, has his official residence in Schloss Bellevue. President of Germany: The President of Germany, officially the President of the Federal Republic of Germany (German: "Bundespräsident der Bundesrepublik Deutschland" ), is the head of state of Germany.
Schloss Bellevue