A black box built from oriented strand board houses the kitchen and bathrooms of this converted barn home in Portugal, and also integrates a staircase leading to the mezzanine floor above (+ slideshow). More
Concealed behind a historic facade, this narrow residence by Barcelona architect Josep Ferrando is wedged between the party walls of a pair of houses in the Spanish city of Sant Cugat. More
This glazed house built from thick concrete slabs was designed by Swiss architect Gian Salis to follow the slope of a plant-covered hill in Germany's Rhine Valley (+ slideshow). More