Over the past two decades, the number of extreme climate disasters has increased by 83% worldwide, resulting in 26 million people a year leaving or losing their homes. The Mediterranean region is particularly vulnerable to the effects of climate change in Europe, as are coastal and mountainous areas in Bulgaria, which are prone to heavy precipitation, resulting in flooding and landslides. The consequent demolition of buildings and property requires temporary accommodation that meets contemporary standards of comfortable living and sustainability, achieved in a timely manner to address the crisis effectively. The current report is part of a twofold scientific design project (10.5593/sgem2023V/6.2/s27.84) focused on such a post-disaster solution—a light reusable micromodule, designed for short-term stays and providing a transitional shelter that facilitates the re-establishment of daily routines (10.1111/j.1467–6486.1988.tb00043.x). The module is a prefabricated, self-contained unit, constructed from recycled polycarbonate panels and timber-bearing structure with dimensions 2.4 per 6.0 m. Designed for rapid assembly and disassembly by volunteers, the compact module can be easily transported and erected on steep terrains using ground anchors for foundations. The modules can be grouped to create outdoor spaces for daily activities such as social interactions, sports, playgrounds, musical events and reading, which further enhance psychological and social well-being. In order to guarantee an appropriate standard of living on minimum area for a period of several months, the module is furnished with essential daily amenities, including a kitchen, bathroom and storage space, and is designed to accommodate a family of four. With regard to sustainability, the utilization of rainwater harvesting is a notable feature together with improving light and air circulation using roof vents, roof construction and material selection.