Lots of progress this week with the foundation structure all but completed. The big debate of the last couple of days has been how to make the underside of the building rodent-proof. It looks like the underside will have to be covered with a perforated (3mm holes) galvanised metal sheet unless there is a better alternative.
The almost completed foundation 'grid'. All that is left to do is peg the joints with 20mm oak dowels.