The typical Norman houses of the 15th and 16th century proudly stand their half-timbered walls. They are built around thick beams that form tiles, a technique inherited from the Middle Ages. These are traditionally made of cob, a mixture of water, hay and clay. Once dry, it is covered with a coating of sand, linen and limethat gives it its typical shade and protects it from the elements. In the 17th century, granite replaced the cob and the windows got enlarged.