The design is going out from the material corrugated paper. It is a low weight, strong, low price and easy to recycle material. With a sealing coat the material is water resistant. My idea is to crate a box, with 20 1,10x2,10 m for the house bottom and the walls and 8 three-cornered plates for the housetop. Every pane has a bend position on the flange, to join the planes with little spikes together. The entry door is with a typical side band fixed. The house is easy and fast to build up. Four houses are one community. They have a red plane for stretching over the gates between the houses. So they become a conservation outdoor area. All in all it is a easy and basic concept.