A house made of polyethylene (roto-moulding) in two pieces easy for transport, easy install (4 screws), suitable for inundations, sismo-resistant, long life and absolutly recyclable.
It is possible to install a second roof of local vegetal for shadowing or solar panels for energy. the doors in both sides for cross ventilation, are sometime the windows.
It's easy to produce with low-tech by roto-moulding.