Hammering and constant drilling whose sound becomes louder when it goes into the wall and down to me. I have a home office, and basically can’t do my job (right now, for example, I need to sample thousands of 2025 soundtracks for the annual ‘top 10’ podcast….nope, impossible).
I guess with some modern scores, especially from our mutual composer friend from Germany, it is particularly hard to distinguish between what is your neighbor’s tool noise and what is the score.
Jokes aside. I wish you all the best. Can’t you settle an agreement with your building neighbor about working times of silence?