I have just purchased an end terraced house built around 1920 ish. There is a path between this house and the next which is earth and broken slabs on top. This path is around one metre higher than the internal floor level and I have a damp area at one end which is around one metre high and two metres wide. I assume that the soil against the exterior wall will have to be dug out and some form of barrier or damp proofing applied to the exterior wall and the soil reinstated. Can anyone advise whether this is correct and what should be applied to the exterior of the wall.. The inside wall will be hacked off and a damp course injected and the render and plaster made good.