Kest, you're missing the point of the map. He's aiming to make a straightforward, bustling, major city. Cities like that often have a group of the same houses or apartment buildings lined up for better space management and maneuverablity simply because it's so populated. If the houses were placed in random locations, it wouldn't be much of a big-city, would it?
Edit:http://www.accuspect.com/images/Townhouse.jpg[/img]
I took the liberty of finding an image of a Chicago residential area.
Edit:http://www.accuspect.com/images/Townhouse.jpg[/img]
I took the liberty of finding an image of a Chicago residential area.