The walls of A Universe will need to rest on some kind of Foundation, meaning something to keep the cob from sitting directly on the ground.
Geographically, Beam Camp is situated in a climate zone where the freezing and thawing effect of Winter could cause the ground to shift to a degree where structures can rupture.
A Rubble Trench!
This involves digging a trench where the walls will hit the ground. The trench is then filled with rock ‘rubble’, creating excellent drainage and no chance of standing water. Larger stones are placed on top of the rubble to create a solid surface to attach the walls.
Another excellent thing about cob is that, as an organic, easily sculptable material, incorporating the stone base into the cob wall can be a design element all it’s own! See some examples below: