But he has.
It is a wooden structure very basic clearly for storage but he has drilled into and attached it to our wall which is the boundary between our house and his property. So he has joined our formally detatched houses.
Shurely shome mishtake!? He is a nice young man with a nice young family so I am surprised, and not v happy. Willing to be reasonable but we do not want anything attached to our house so there will need to be action on his part.
Anyone got a similar issue/ wisdom/ experience to share?