You are going to enjoy this “Mini House” designed by Nobuyoshi Furumi. With only 234 square feet of footprint area and less than 470 square feet of total floor area, a family of four enjoys the life in Tokyo.

Plenty of images with many interesting details of the house are shown here:
http://www.plastake.com/content/works/07housemini/main-mini001.html

There are also the images of the architecture models and many photos of the construction process:
http://www.plastake.com/content/project/project/07chiisanaie/main-chiisananew01.html