Hello, I am hoping to rebuild my leaning and cracked full brick front boundary wall. I had a couple of quotes from builders last year but now find myself with time out from work and want to do it myself. Both builders quoted to rebuild on the old footings although I guess that might have been revisited if any issues became apparent after demolition of the existing wall. Looking at lack of depth and lack of spread of the footing that I've exposed on the garden side of the wall I'm pretty sure that I'll need to dig out and replace. My question is really how do I create the necessary spread on the road side as it will need to be under the pavement. Soil type is heavy boulder clay type. Original wall built 1930's and has been leaning since we moved in 20 yrs ago, so not a new movement.