I would love to live in a very small house in the distant future. My Nana and Pa live in a very small cabin in the mountains, and I would be thrilled to steal it out from under the rest of my family once they're dead. They actually have three tiny log cabins in a row--each a different size. One is just a bed and a bathroom and a stove, the next is a studio, and the one they're currently living in has a jacuzzi tub, a dining space, and a room in the back where they grow weed. They also have nice outdoor seating areas.
For now, though, I need a big house to raise children and have my own craft space.