More than half of all steel produced worldwide goes into buildings and infrastructure. Research demonstrates that there is a link between the level of development of a region and its use of steel. For example, in developing regions steel used in construction and infrastructure represents around 60% of overall steel use while in developed areas it accounts for only 35%.1 According to a United Nations report, World Population Prospects: The 2012 Revision, launched in June 2013, the current world population of 7.2 billion is projected to reach 8.1 billion in 2025 and 9.6 billion in 2050.2 Population in developing regions is projected to increase from 5.9 billion in 2013 to 8.2 billion in 2050. During the same period, the population of developed regions will remain largely unchanged at around 1.3 billion people. According to UN Habitat, by 2030, about 3 billion people, or about 40% of the world’s population, will require proper housing and access to basic infrastructure and services such as water and sanitation systems. This population growth will be accompanied by rapid urbanization. In the 20 year-period, from 2010 to 2030, the population of urban areas is projected to increase by 42% and reach 5 billion. This means that in 2030 the world urbanization level may reach 60% compared to 52% in 2010.3 The process of urbanization will be largely driven by the developing world while the developed world will experience only an incremental increase. The need for non-residential buildings (schools, offices, shops and manufacturing facilities) and related infrastructure will also continue to grow. Many of the challenges posed by population growth, urbanization, poverty reduction and mitigation of natural disasters can best be met by steel. ACERHOGAR houses consist of modular prefabricated parts assembled on-site, with a minimum amount of tools necessary. The fabrication does not require on-site welding. The components are purchased in a package. Each package contains all the parts required to assemble one module, excluding the walls which are typically locally sourced. The houses are of high quality and compatible with many materials used for the walls, e.g. cinder-bloc, brick and adobe, cement board, gypsum board, etc. ACERHOGAR is an innovative self construction system for affordable homes that can grow gradually according to the users’ needs. The system targets the poorest socioeconomic levels of the population, and can be built in disaster and inaccessible areas. The houses are solid, making it difficult for intruders to break in. In areas where a sense of insecurity prevails this can reduce stress and anxiety and improve quality of life.