Bitlis is also notable for its many old houses. These are built of cut stone and are often large and impressive structures. Most have two stories, but three stories are also found. Ground floors were generally intended for storage and stables, with the residential quarters on the upper floors. Ground floor rooms have few windows, upper floors are well lit. Roofs are flat and covered with beaten clay. Unlike traditional houses in nearby Erzurum or Van, Bitlis houses do not have bay windows and balconies.