Working construction on Sundays?

In the end, the noise is fine as long as no one complains.

As already said, ringing the neighbor’s doorbell and checking is the best. At 50 meters distance, people don’t hear anything from your house. You can easily use the angle grinder on Sundays without problems. Especially in winter/rain/autumn etc., people are indoors. So it’s not just your insulation but theirs as well. The neighbor very likely won’t hear anything. It’s different if you’re sawing on a Sunday afternoon in the middle of summer and the grandma is visiting the neighbor and they’re drinking coffee outside. That will certainly cause stress and should be avoided. In the end, the noise is okay as long as no one complains. In our local surroundings, we really have tolerant neighbors. They don’t care that I turn on the circular saw in my shed on Sundays at 2 p.m. First of all, nobody hears it in the neighboring houses anyway, and if someone is sitting outside, I wouldn’t saw. And if someone comes, I of course turn it off immediately (which has never happened so far). You should definitely avoid stress with neighbors. So far, I’ve always done very well this way. I get along very well with all immediate neighbors.