Yes I got that in your post #121 and I did say the link did not cover domestic properties but the principles were relevant. Clearly the location of the grid power source could differ between resdential areas dependent on the age and style of the development, and also those connections required by local authorities will probably be different too.
Looked at our mains input box and can only see an input cable, nothing resembling an output to a neighbour. Would you expect looping on detached houses? The link seems to refer to terrace, or semi detached, but then says most not affected, so is it a significant issue?