On Monday, 27 July 2015 19:26:08 UTC+1, Tim Watts wrote:
a) It needs a backbox that would be out of the other side of most walls.

Coincidentally I was thinking that for some wiring I am considering doing in bedroom 3.

Actually doing it in bedroom 1 and poking through.

Possibly encouraged by the realisation that I put the wallpaper up before installing the sockets.

Owain