Yes, there's one player-owned house. Vilja will sit down at the table with me, but there's only one bed which apparently I'm welcome to share with her!

I've updated the list on my previous post with the other mods, now tested. It's tricky to say because she's quite mercurial generally - as are all companions - when it comes to sitting down i.e. if I sit at a table she'll go off and find a chair on the other side of the room. She also gets lost between cells easily if there are a lot of cell changes in a mod, though her Summon spell works very well.
Well, I guess if the one bed is a single bed it wouldn't be fair to call the house companion-friendly

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As for chairs, from what I have seen (by building houses and testing them with Vilja) she has a tendancy of picking the first chair I add to a cell first! So, it seems to be related to Form-IDs. with Vilja it is of course less of a problem than with other companions, as you can tell her to sit down first, and then take a seat next to her (unless she'll, as in one of Shezrie's houses, go and sit on the toilet chair!)
If she gets lost between cells, there must be something in how it is set up in the construction set that is causing this, as it isn't 'normal'. I don't know which of your house mods you might be refering to with this - I guess it is either Silorn or Knight's addon?
I'll update the list with the new houses you have highlighted in your list (but not with the one where she has to sleep on the floor in an inn) as soon as I've had supper (hubby calling for me now)