I don't think there is any definite and specific lore on that (maybe hidden in some quest tidbits?), but the way I see it obviously is that from an OOC development standpoint, they weren't going to model cities the size of all the wards combined together with unique plots for every house. I mean, you even have subwards that are the same as their parent ward but with a 90° rotation so... yeah, it's instanced.
I see it like the Goblet for example having 12 wards (it was 8 before), being just a city with 12 districts inside. Since it was specifically created for adventurers (like all housing areas), it's not that dissimilar to IRL modern suburbs where all the plots more or less follow the same patterns.
I see it like the Goblet for example having 12 wards (it was 8 before), being just a city with 12 districts inside. Since it was specifically created for adventurers (like all housing areas), it's not that dissimilar to IRL modern suburbs where all the plots more or less follow the same patterns.
Balmung:Â Suen Shyu