what's the closest settelment to a clean slate?

what I mean by this question is what's the settelment with the biggest space to build while having as few buildings as possible that I can't remove?

I didn't like any settelment I went to up until now because they all have an unremovable building that I don't like how it looks, I want a settelment where it's just an empty space that I can build from the ground up if that's possible