Dwelling is understood in the sense of Martin Heidegger: »Dwelling is the manner in which mortals are on the earth.« The way in which people are living on earth situates them in their dwelling. Because dwelling is not an activity, but a mode of being, an ethics of dwelling is required because »habitability« of the earth is limited. This demands a sustainable way of life. Responsible housing therefore needs a structural pause in the growth-focussed process of civilisation. As a result, dwelling becomes a reason for a critical reflection on life and this becomes an existential piece of thinking about dwelling.