Informal settlements are the common features of urban growth in most developing countries and are typically the product of an urgent need for shelter by the urban poor. Rapid urbanisation, inefficient land administration and inadequate capability to cope with the housing needs of people in urban areas have contributed to the development of informal settlements or slums. The problem related to informal settlements is a very serious urban issue for developing countries. Informal settlers are more exposed and vulnerable to natural hazards than the general population and they are more likely to be affected and displaced by disasters. They tends to receive less housing assistance in their aftermath and are one of the vulnerable groups after disasters as they do not have legal land ownership documents and they are invisible on the records of city authorities. The humanitarian response and the reconstruction program led by central government or concerned authority tends to overlook informal settlers.

The spatial data and technology can play a significant role for building resilience of vulnerable urban groups such as informal settlers. This paper explores the role of spatial data infrastructure (SDI) and technology for disaster risk reduction and community resilience. A case of Nepal Earthquake 2015 has been taken as a case study.