Quote Originally Posted by Angelic_Magic View Post
We already have housing glamours, so maybe the system could read the extension of a house in the same way, so it could be shown outside as well. Inside it is always instanced so I think it could be possible.
You couldn't show an extension outside of the house because it would end up outside of the plots boundaries, either overlapping the common area or another player's house depending on the plot location.

If the extension would be added to the basement as you suggest, it wouldn't be visible from outside of the house regardless since it would be underground.