I have just seen that my neighbour is having a plastic roof put in the back and is attaching it to my extension wall by putting up wooden battens. My extension is about 6 inches from our boundary. So not only has he drilled into our wall, but has put the roof over part of our garden. When I asked the joiners what they were doing, he came out and was very rude!
I pointed out that he'd not even bothered to ask about drilling into my wall or putting the roof up over my garden. He said he couldn't see a problem and didn't know I was in anyway!
I'm fuming!