Hmmm...I Googled both composers, and this bust sort of looks more like Beethoven, but am not sure. Bach seems to have had longer, curlier hair... I don't think anyone lives in this house anymore, but our musical friend stands guard.
Notice the tape traces of X's on the windows. During both World Wars, Belgraders X'd over their windows with tape so they wouldn't break from the reverberation of explosions. Many did the same during the NATO bombing in 1999, and such windows were dubbed "Windows -99"!