Beethoven House is Bonn's pride and joy. Beethoven was born in 1770 in the small house in back, which opens onto a little garden. On its second floor is the room where he was born, decorated only with a simple marble bust of the composer. Many of Beethoven's personal possessions are in the house, including manuscripts and musical instruments. In the Vienna Room, in the front of the house overlooking the street, is Beethoven's last piano (it was custom made, with a special sounding board to amplify sound for the hearing-impaired composer).

The museum was totally overhauled in 2019 so it could be refreshed in time for Beethoven's 350th birthday in 2020.