We seem to be getting a bit flustered about addresses at the moment, so I thought I clarify something.

In Rome are two very different parts of the city side by side. The Carinae and the Subura.

Both are just to the north of the Forum. The main thoroughfare through the Subura is the Argiletum (which goes through the later Forum of Nerva) while the Carinae's main road is the Clivus Orbius which is a road that leaves the via Sacra about half way between the Regia and the (later) arch of Titus. It is roughly equivalent to the modern via Cavour.

Now the Subura is a very low lying area that is cut off from most of the winds that make the rest of Rome bearable in Summer, it floods occassionaly and is a by-word for poverty in Rome. There are a couple of nice houses very close to the forum and on the far side, where the Argiletum climbs onto the Viminalis, but the worst bits are between the Argiletum and the Forum of Augustus.

The Carinae/clivus Orbius on the other hand is the way to the Cispius/Esquiline and the horti of the rich and therefore very desirable in the late Republic.

But the Argiletum and the clivus Orbius are VERY close together and run roughly parallel. This means that if it is politically expedient, a politician living on the Argiletum (like Caesar) may address the public with the statement that he lives in the Subura, while he may describe himself to the senate as living in the lower Carinae.

This is a post-code lottery rather than an accurate description of their addresses.