Insulation under the concrete section of the spiral staircase is complete.

Mortar fillet from the retaining wall to the foamglas.

Radon membrane down and taped. Rebar starting to be built.

Shuttering starts to go back in. I hadn't left enough clearance. I need 40mm. I had to remove the rebar and radon barrier and then dig down and reposition the foamglas slightly deeper. A major pain for a 30mm mis-measurement.

Shuttering all back in place.

Correct 40mm clearance this time!