This book examines the social and spatial dimensions of dwelling from the perspective of sustainability. This publication avoids the traditional energy and technological dimensions of sustainability to position the notion of sustainable dwelling at the crossroads of spatial polyvalence and residents' empowerment. In the field of housing, this publication identifies the recurrent properties of 'sustainable space? and the variety of the socio-cultural practices that can embody them. Its purpose is to comprehend how the concept of sustainability is reflected in housing spaces as well as to analyse how inhabitants put those spaces to the test