Out of Character
The old district is kind of a mishmash, with houses, market stalls, warehouses, workshops all jumbled together as a result of totally unplanned growth in the early days. The other two districts, on either side of the river after the junction, were developed later and more or less planned for specific purposes by Mongoose, with straighter streets and logical arrangements. But fewer people actually have permanent houses in those districts. I might be able to get a map up soon to make this clearer.
So the two pairs of characters are pretty close to one another, and yes, everyone heard the commotion.