What characterizes Terr'e Mesu in addition to the desire to recover the typicality of local peasant houses, is the search for a constructive style that privileges 'primary' materials such as stone, lime, terracotta, and wood, limiting the use of cement as much as possible and solvents or chemical additives. The paints used to protect the roof timber have an alcohol solvent extracted from the citrus peels. The terracotta was treated with natural oils, we used lime for the plaster, and the wall paints are without additives, with peculiarities that allow the purification of the air and the regulation of internal humidity. Particular attention was paid to selecting local building materials that would guarantee adequate sound and thermal insulation, allowing for an internal comfort that can be assimilated in summer to that of an air conditioner, without the contraindications - also in environmental and energy terms - which for health. The houses can become intercommunicating, offering modular solutions, depending on your needs, which can accommodate up to 17 people in the overall structure. We have also installed a photovoltaic system, and a Wifi coverage.