From Treehugger, take a look at this interesting take on sustainable housing: HABODE. It can be transported in two standard shipping containers, which then unfold into the structure itself, so it can be set up in any place at any time (and moved and rebuilt at any time); it can be used as a conventional, permanent house, or as a temporary dwelling. It’s got a “one size fits all” footprint of 80 square meters (just over 260 square feet), but within that fixed shape it’s highly customizable: the rooms, doors, and windows can all be configured however one wishes, there are several color schemes to choose from, and one can add or subtract features like decks, solar panels, and wind turbines. If one were to opt for both the solar panels (used for water heating) and the wind turbine, and keep it in one spot, it could be very green. No mention anywhere of just what cost bracket it’s in, but they do make a big deal about it being “affordable.” And, bonus, it is also very lovely looking.