"This design for a prototype for temporary housing for Palestinian refugees actually proposes three types of units, all organized on a five-metre-square module, with four units meant to be grouped together on the foundation base. The use of a module here adds a great deal of flexibility to a bearing wall system, which is often dismissed as being too static for such construction." (prototype, implementation not verified)

Source

Steele, James. 1997. An Architecture for People: The Complete Works of Hassan Fathy. London, United Kingdom: Thames and Hudson.