The environment around these houses is made of many trees, and many ponds can be found, that were created since earth was taken to create Pisé (rammed earth) walls. Edifices of rammed earth are thought to be more sustainable and environmentally friendly than popular techniques of construction. Because rammed-earth edifices use locally available materials, they usually have low embodied energy and generate very little waste. The soils used are typically  low in clay, between 5% and 15%, which conserve the topsoil for agriculture. When the soil excavated in preparation for a foundation can be used, the cost and energy consumption of transportation are minimal.    
Rammed earth is probably the least environmentally detrimental construction material and technique that is readily and commercially available today to construct solid masonry edifices.
ii.          Cantal Houses
Made of Schist, Granite with roofs covered by Lauze stone tiles, volcanic slate or grey Lava. The steepness of the roofs is explained by the fact that in this way the snow slides off, hence lightening the load on the chestnut or oak roof beams.  
The walls of the houses in the northern part of the area are made of volcanic stone and sometimes those situated in the south are made of granite stone. The thickness of the walls and the small openings ensure that the houses are perfectly suited to even the coldest of winters and hottest of summers.
Houses often boast a tower attached often a pigeonnier. The tower can be of round or square shape.