Ocho Casas Housing Complex in Spain

http://inhabitat.com/origami-inspired-social-housing/ocho-casas-inscritas-y-tres-patios-eight-inscribed-houses-and-three-courtyards-spanish-architecture-world-architecture-festival-spain-barcelona-santamargarita-sustainable-architecture-sustaina-4/

http://freshome.com/2008/11/20/ocho-casas-housing-complex-in-spain/
http://inhabitat.com/origami-inspired-social-housing/