Please help. I plan to drop my garden by 1m to enable my back garden to become a paved area. The wall I plan to build will separate my garden from next door which at the moment is at the same height as mine. Will it need to be double skinned, or will a single skinned wall suffice. I have been advised by a builder that a single skin will do but back fill it with rubble or concrete.
This sounds like a good idea but I want to ensure that the wall will not move and the neighbours garden will not fall onto mine. The wall will be 6m long by 1.2 m high. Also I am bothered about water build upbehind the wall.