On our last renovation we moved both electrical meters out to the common hallway so they're accessible to the reader. The gas meter is still inside though, so it's not really an advantage. We just didn't care for completely replumbing everything... which would be required for a meter relocation. (Old gas pipes are left alone, but as soon as any change of adding or removing more than 50cm of pipe is done everything has to be brought up to current standards, which means replacement of our original 1913 pipework...)
