So with area cleared time to dig the founds out. Had to locate the original founds of bungalow first, 3 courses of engineered bricks and 4 courses of blocks we found the foundations, they were nearly 2ft deep !!!!!!

Became quite apparent these were going to be substantial diggings going on. Ended up in total going down 7ft to find solid ground.
Not only that we had to go through a massive slate deposit and huge chunks of slate.