I've traced an extended ring main in my house out into the conservatry and I'm not sure whether it's safe or legal.
The cable goes from a socket, behind plasterboard and around the internal corner of the room, out through the outside wall of the house into the conservatory. Down the inside of the plasterboard and under the wooden floor and onto the sockets in the conservatory. Then back again.
Inside the conservatory all looks OK but it's the bit inside the house that concerns me.
Difficult to explain.