I know the Devs have tons of stuff stacked up and this is not a "priority" but the idea came to me and I figured I might as well throw it out there.
What if each house had a lawn with it inside of which you could drop and arrange items exactly as you can inside your house? Making the decorating possibilities so much more than the massive potential they already have? :D
while this may be possible for planets with flat land like lok or tatooine and some parts of naboo but I would gather this would be a coding nightmare for corriella, Rori, Talus and anywhere else the land isn't flat.
I think however the tree house did a decent job of it creating a porch in that model but it was still part of the tree.