Even in Bellingham, Washington where I reside, I have seen Craig's List posts for 250 and 300 square foot apartments and one-bedroom or studio houses. I've even visited a few of these smaller spaces. While smaller does mean smaller energy bills and easier upkeep, these spaces can also seem cramped when not built with windows peering into the outer world (usually a natural setting) and for some people it will feel like sharing a dorm room. So think twice before going small, but if you follow the small house trend, then you'll love this video of a micro cube home in Anjou, France.
https://www.youtube.com/watch?v=gM0vpsP-Bmg
French with English subtitles