Depending on the properties of the ground and the site of the building, foundations can vary from 40 to 80 cm deep; they need to be 70 cm wide for load-bearing walls, and around 50 cm wide for the gable walls. They are filled with rocks, bound with an ordinary earth mortar.

In sites where there may be strong flows of surface water during the rainy season, the foundations should be raised 10 – 15 cm above ground level.