Hi,
It's very simple, it's because the blueprint you use doesn't show the residence. This afternoon, I added a video related to "how to customize a blueprint". The blueprints, Ancestris is shipped with, are made by users of Ancestris. Ancestris is based on the principle "users helping users", so additional blueprints are available on the wiki (I guess only the french one, but of course it's free download). We are pleased to receive blueprints made by people to add them to the downloadable blueprints package.
About the videos, as I said, there are today 5 on line, but I will do others only if I have feedback about them. If it's useful I will add more if time permits.
Francois