Selling new construction after receiving funding / Wohnriester - possible?

Oh man, I still really feel for you, your descriptions could be an exact mirror of me during the phase when the stomping neighbors were always around and there was not even a way out during the day because of Corona. It just wears you down and since the house is being renovated and the family is living in their other apartment (yes, I know, stuff like that really only happens in Munich), I’m just mentally better now despite the circular saw, because at least you know there will definitely be peace starting at 5 in the evening, which was not the case with the neighbors. Here, I was also once close to ringing the neighbors’ doorbell in tears so they would really understand how bad it is. That’s why I believe autumn will be a blessing for you, maybe then you can finally enjoy your garden and thus the whole house again while raking leaves and drinking coffee with a blanket on your terrace. But I still think it’s great and important that you pushed yourself for your son yesterday, he can’t help it and should have a nice birthday. Before selling, I would really try that in your place, let autumn and winter come and then wait to see if the neighbor keeps being such a music fan (maybe there’s still hope that he just needs it for work and that will be over next year). If so, you and your husband should go over to them, bring something nice to emphasize your sympathy and explain your problem to them in a way that they really understand it like we do here, maybe your husband can also describe how he feels and how he perceives you when you’re so stressed, and that you’re not like that in every aspect of life (your neighbor shouldn’t think you’re just crazy, there are indeed people who just complain about everything and constantly moan). All the best to you and I’m keeping my fingers crossed that you can recover for a while now (at least it’s pouring here right now :) ) and that a solution will be found for you and your house, Corona has surely made it much worse.

I thank everyone who has contributed such diverse solution proposals in all directions,

Oh, one thought just occurred to me: is the boombox neighbor the same as the one with the shiny metal shed? - then damping there could also be helpful.

Oh, one more thought just came to me: is the boombox neighbor the same as the one with the shiny metal shed? - then damping there could also be helpful.

Yes, he is. What do you mean by damping? In the meantime, we've already put up a fence on the boundary for aesthetic reasons.

I think that his scale wall might possibly act as a reflector and/or resonator. In that case, it could help to dampen and/or stiffen it.

Anti-vibration strips like those on [Aluminium-Fensterbrettern] could help.

There are enough people who don't consider others, following the motto "my property, I don't care about the rest."

When my children are loud, I say: please be quiet, after all, we have neighbors too.

I am not in favor of all those countermeasures either; sooner or later, something else will bother you about the neighbor because they simply don't show consideration.

My brother recently had music playing too loud at his place, and a neighbor from the other street (a few houses away) came to complain about the volume. He couldn't do anything because everything was within limits, but still, my brother was considerate and turned the music down.

A life only works together and not against each other.