We're currently working on getting the maximum value out of a "small"(-er?) sized project, but it's still a generous 900 SF. What if all you had was 200 SF? That's the design problem that MIT Media Lab students have been working on and here's a pretty neat video to demonstrate their ideas. Below is another video from several years ago about Gary Chang's small ~344 SF apartment in Hong Kong that attempts to accomplish similar transformations out of a single small space.