The choice of the materials has been steered out going from the evaluation ”recommended” and ”accepted” from Varis Bokalder & Maria Block’s book (The Whole Building Handbook / Earthscan, 2010). As building materials we have chosen clay, stone, aerated clay blocks, straw and wood. For the roof we have chosen slate, ceramic, grass, and lark shingles. As insulation materials hemp, flax, reed, timber wool, sheep wool, glass foam and cellulose fibre.