Completed in March of 2010, Architects House by Sanpei Mitsumasa is a good case study for maximizing small space. Located in Tokyo, it belongs to husband-and-wife artists who use the space a a residence, a studio and also a meeting place for clients.
The structure itself takes full advantage of the oddly-shaped 10-tsubo (355 sq ft) plot of land. The architects then proceeded to pull out all the tricks of the trade to create a sense of spaciousness such as vaulted ceilings and variations in floor heights. Luckily the land had considerable greenery around it so by including various large and small windows they were able to provide different views of scenery as well.