We are in the process of excavating our basement room - only to gain another 200mm but because we need to allow for 300mm of slab/insulation/screed we have had to dig down 500mm.
At 400mm we have reached to top of the concrete footings that the house is built on.
What are the regulations around this? Can I excavate the remaining 100mm knowing that we're then going to pour in 150mm of concrete? How far past the top of the footings can we excavate, if at all?
At 400mm we have reached to top of the concrete footings that the house is built on.
What are the regulations around this? Can I excavate the remaining 100mm knowing that we're then going to pour in 150mm of concrete? How far past the top of the footings can we excavate, if at all?