Houses are fundamental metaphors for self, world, permeability, transition, interiority, exteriority, multiplicity, and the power to move from one state of being to another.
If you're writing a book where you want to make a positive truth claim, then you should absolutely call it nonfiction or memoir. If you don't want to make that claim - if that's not what's important to you; if you're more interested in storytelling and interiority and interpersonal relationships than in objective, checkable facts about the world - then why wouldn't you call it a novel, and take advantage of what that gets you, of the extra freedom, of belonging to the tradition of the novel?
When you write in the third person, you get to imagine other people's interiority.
Memory as an inversion of historical time is the essence of interiority.
I don't talk about consciousness. I talk about interiority.