The residential areas are carefully organised, and apartments are allotted according to rank and marital status. The city has 1,200 four-story apartment blocks. The roofs of apartment buildings are color-coded by the jobs of their residents; Ministry of Health employees live in buildings with blue roofs and Ministry of Agriculture employees live in those with green roofs. High-ranking government officials live in mansions, of which there are about 50. However, in 2019, quite a few of the ministerial mansions were reported to be unused and left in a neglected state in overgrown compounds.