This study is an initial attempt to assemble a dual history of the topics of informal settlements and sustainability within architectural discourse over the past fifty years. During the 1960s and 1970s, architecture adopted a renewed sense of social immediacy, which increased the study into informal and slum settlements, as well as a burgeoning concern of its own ecological impact, which encouraged investigation into sustainable design. While these interests all but disappeared amidst the artistic and political climate of the 1980s, they have again become relevant to architectural discourse, albeit as separate entities. The aim of this study is to unite these two discussions within architecture so that they may together become more potent. / text