I had a 978sf house ... which included 2-Br/2-Ba, eat-in kitchen, living room, dining room, W/D, attached garage, attic, and a front and back porch. It was a lot more house than I really needed, but I bought it anyway because the price was right and the location was great.
Right now, I live in a 480sq.ft. Studio Apartment, and its a little crowded, but still liveable, even luxurious at times. I could adjust to a 200sf Tiny House with little problem, but what I'd really like to have is a Tiny House on a truck platform, so I could rock out that RV-Lifestyle on a miniature scale.