I lived in two houses that changed. The first had an attic, & then it didn't. In the second house, the room that had been my bedroom when I was in high school completely changed.

I also lived in an apartment when my kids were young that, in the middle of the night one night, I awoke to notice two things: There was a blue dwarflooking creature crouched x the far side of my bed, and the bedroom was separating & moving away from the rest of the building!! I screamed my son's name name three times, awakening him, resulting in him opening the door & breaking the connection with whatever was causing this to happen. Thankfully, it never happened again.