I've just dug the trench for a wall between my neighbours garden and my drive. There are two slopes to cope with - one parallel to the wall and then a slope at the base of the drive slope from my neighbours garden. At this point I will have to turn the wall into a retaining wall. Could anyone give me advice as to how far I'd have to go with a DPM against the wall, does this go under the concrete footing (I assume not but it's a clay base when you get to about 60cms down) and advise me about the steps in the footing I will have to put in for the slope of the drive?
Any help appreciated.
Any help appreciated.