When the Rohingya refugee crisis escalated in late 2017 - with a massive influx of 700,000 refugees into Bangladesh (bringing the total Rohingya refugee population in Bangladesh to nearly 1 million) - the country saw itself at the epicenter of one of the world’s most pressing, and quickly-evolving, humanitarian crises. About 600,000 settled in the Kutupalong-Balukhali expansion site, the world’s largest and most densely populated refugee camp. The refugee population initially settled on a hilly landscape that was quickly deforested, and ripe for risk in the cyclone-prone area.In Cox’s Bazar, Bangladesh, which had become one of the world’s most congested and largest refugee settlements after the 2017 Rohingya refugee crisis, CRS supported Caritas Bangladesh in piloting a range of Mid-Term Shelter designs to improve people’s safe, dignified living conditions in the precarious surroundings. The designs sought to improve the durability and ease of construction, while maintaining a temporary construction model for large-scale implementation. The design model was approved by the Refugee Relief and Repatriation Commissioner (RRRC) and endorsed by the Shelter/NFI sector technical working group.