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No not at the join between new & old, the crack is in the end wall. It is a completely new wall, but made of those horrible themo-block type breeze-blocks that one could push a pencil through if one had a mind to. The upstairs crack, which was described above is in the upstairs bathroom (or I assume it is there as, as mentioned, the wallpaper has been left up for now). Downstairs I see a crack in the same garage wall, although not all the way down, just a foot coming down from the ceiling level. It's isn't so clear there is an issue outside, although it concerns me that the worst of the sunken drive bricks are near to the down soil pipe.