We've been given a CD of photos taken by the contractors, which is a great record of work that we missed. This is Joe, the site manager, at the bottom of pumped-out Well 1.
The perforated pipe. Oh well, it seemed like a good idea at the time.
Having stabilised the well shaft, excavation of the earth-sheltered rooms can begin.
This is the formwork, waterproofing membrane and the steel reinforcing for the slab.
Sunshine for the big pour and it continued sunny and dry, thank goodness. 
The front face of each gabion is arranged in neat courses. Behind this, the cage is filled with clean stone just packed in, randomly.
"Beam and block" construction on the first floor, for added thermal mass.
The timber frame going up.
The only way to move these massive glazed units into place.