The scene is as familiar as it is tragic: A devastating hurricane or earthquake strikes a populated area in a poor country, inflicting a high number of casualties, overwhelming the resources and capacity of rescue teams and hospital emergency rooms.

First responders must resort to “triage” – the medical strategy of maximizing the efficient use of existing resources to save lives, while minimizing the number of deaths.

But if governments could apply triage to substandard housing, medical triage would be a much less frequent occurrence – because in the developing world, it is mainly housing that kills people, not disasters.

From the 2017 Global Platform for Disaster Risk Reduction to the 2017 Urban Resilience Summit, practitioners and policymakers have increasingly focused their discussions on how we can boost the resilience of urban areas. But this is a problem with a well-known solution: Resilient cities require resilient housing.