In the middle of week 3, the ditches were now all gone, covering up the drain pipes and electrics. The concrete path too was gone:

Some of the concrete area between our house and our neighbour's house to the south also was removed, but much remains:

On Saturday, the foundations of the new path to the rear of the garden were in place:

Also, the area which will contain the new patio:

The wall in this last picture, adjacent to the new patio, will in fact be demolished, and the foundation, visible here, will be underpinned.