Each resident to the respective House Deed.

Not entirely sure with married couples though.
See them clustered together sometimes,
but they still occupy the same amount of Deeds.

When able, they also trot around to chat
with the other residents or fight enemies
(even if not set to guard).

Am designing the residence with an eye on:
- how well it can defend against enemies
(basically multiple layers of wall)
- liquids (no one likes downpour in their residence)
- fumes from below
- yet to implement proper Rapid Item Storing
- yet to implement Mainroaditis (when in Rome)

So each NPC goes into a different place?

WOW!!!!! That is really cool

Also, for some reason, all the statues get placed on the roof (there's one more on the very top roof, just not rendered).

Quite imperfect & so big that it does not fit / render fully; the leather/cloth workstations are top floor; many of the houses actually have doors and residents, they just don't show here.