Really, I'd say modders, but I'm a console gamer. So I said Bethesda.

I would love something like this. Building my stronghold in Morrowind was one of my all-time favorite quests.

love the idea as long as its kept non fable-ish
the great house strongholds and the raven rock settlement really added alot to morrowind
loved having my own place that i could say 'this place is completely mine'