Barbican and Townhouses

In my reading, I've discovered that it was a fairly common practice to build homes up against an outer wall of the city, in effort to save building materials, in that only three walls would need to be built. With that premise in mind, I built these townhouses, attached to the cities outer wall. As well as the wall, I decided to build a Barbican as well, to make a space for more details and a town watch. The buildings themselves are built as townhouses, each one having living space for 2 or 3 different families. I left the walkway on the wall open, so that the watch could still walk the walls. I also modified the design of the wall a bit, without changing it too drastically.