The front half of the party wall was re-rendered.
And the chimney was given a new waterproof cap.
At the back of the party wall we still have to solve the damp problem. The rain is getting between the gutter and the wall and seeping into the wall through cracks in the concrete.
The roofer will plug the gap at the end of the party wall so that rain either goes into the gutter or onto the roof tiles. Errr... Lack of scaffolding in this corner.