The person who lives in the flat below me works on his place every Sunday and always uses his power tools outside to save on mess inside!

He also seems to address evey job with a hammer but doesn't start banging until 4 in the afternoon. He's sometimes still at it at 10pm. He also likes to set up external lights so that he can work right outside our bedroom window until late.

Noise from DIY is inevitable but I agree with the OP in that people should show more respect to others. I don't use power tools at all on a Sunday and never before 10am.