The foundation
A trench 80 cm deep, four courses of foundation blocks with reinforcement and concrete.
The foundation took just under two weeks in June. First a trench was dug, 80 cm deep. Then the foundation blocks went into place in four courses, with reinforcement and concrete in the cavities, and the inside was filled in.
The finished foundation on the lawn 
The dig in the garden, with buckets and a hosepipe 
The foundation blocks laid in a square in the trench 
The foundation seen from the side 
The foundation filled in on the inside
