Introduction: To construct from renouncement (n'UNDO) is an attitude, a cultural reaction, extendable to any field of knowledge and life that, from architecture and by means of the implication of diverse disciplines, aims to generate a base of thought and action (No Construction, Minimization, Reuse and Dismantlement) as a way of doing sustainable architecture of the territory and the city. This is formulated as a philosophy of renunciation, of the search for the essential and necessary, of the do without doing, as the nothing is more philosophy.
Two major crises challenge our models, one systemic and cultural, samples that the subculture of masses of our society, advocates insatiable consumption, irresponsibility, continued growth, uncontrolled accumulation, obsolescence, unsustainable waste generation, mass propaganda and monumentality. A culture where speculation has replaced economy; technocracy is understood as politics; consumption as freedom and charity as social justice.

Contribution to the 3rd International Degrowth Conference for Ecological Sustainability and Social Equity in Venice in 2012.