Due too the entire nation being one huge desert, all homes and businesses lie underground. There are enormous cities buried two miles under the ground.(Which means nukes have no effect against me, as the explosion wouldnt reach the cities and the radiation wouldnt hurt. We would just feel a slight jolt) The cities can be reached by elevators that run from the center of the city to the surface. Here is how the city layers are. Each layer is one mile below the one above it, connected by elevators.
1.Surface, no buildings.
2.Dirt, no buildings.
3.Dirt, no buildings.
4.Welcome area, security buildings only.
5.Business area, commercial and entertainment buildings.
6.Residential area, this is where the normal people live.
7.Rich area, this is where the rich people live.
8.Government area, this is where the government buildings are and where government officials and diplomats live.
9. Storage/farming/mining area, this is where we farm food using artifical light, mine for gold and other ores, and store everything.
The normal home which everyone possesses looks like this mainly.
http://img9.imageshack.us/i/27cptundergroundhouse.gif/#The rich live in enormous mansions. This is a blueprint for one.
http://img91.imageshack.us/i/undergroundmansion.png/