incorporating passive design principles, 'green screen house' by japanese firm hideo kumaki architect office, is located in saitama, japan. the house features a large green wall that is supported by the building's curving facade.
Sky Garden House by Guz Architects. Wierd, but I think it would be really nice to inhabit. It's also an interesting application of green roofs/roof gardens to a very modern, otherwise steel and concrete design.