Coming closer to another home, "Chandan" (meaning "sandalwood"), we see that the walls are made of stabilized mud blocks. These blocks are made with local soil, to which 3% cement and 3% lime are added. But the blocks are not fired, they are mud blocks, yet strong and beautiful. They require no plastering. Cost works out to just one-fourth of the usual fired bricks. The roof tiles are purchased from a nearby kiln; they must be fired for durability against water. The structures use very little cement and steel, depending instead on locally available materials and labour. Thus, the homes at Nd are economically as well as ecologically attrative.