two Stall Dry Compost LatrineS

The building is the bathroom of a house which has three other rooms: a kitchen, bedroom, and latrines. The bathroom presents an 81 sq ft interior area with a bathtub made of cob (earth + sand + straw).

Tires are filled with the earth taken out during the excavation stage, and non-biodegradable waste. The tires are stacked in a running-bond pattern to maximize interlocking between courses. Additionally, horizontal rebars are laid between two courses about halfway up the wall in order to stiffen it against lateral forces during the construction stage.