The growth of the sector has critical environmental implications. It has been estimated that buildings are responsible for more than 40% of the total global energy used, and contribute to approximately one-third of the global greenhouse emissions, both in the developed and the developing countries (UNEP SBCI, 2007). Apart from the energy footprint, it also has a high resource footprint. With is understanding of the status of the construction sector in South Asia and the increasing demand for housing in these respective countries, the project aimed to focus on the housing sector especially social housing in small and peri-urban areas. Thus in order to build a narrative on use of low-carbon technology options in South Asia, case studies on the application of such technology options were documented in the 3 selected countries, namely India (Fly-ash bricks, prefabrication, bamboo), Nepal (Hollow Concrete Blocks, Compressed Stabilised Earth Blocks, Bamboo) and Pakistan (Vertical Shaft Brick Kilns, Hydraulic Lime and Earth and Bamboo).
Overall, the case studies on low carbon and energy efficient materials and technologies from across South Asia revealed that the construction sector as a whole is these countries is disaggregated with complex interlinks among both the public and private stakeholders. While low carbon materials and technologies do exist, their adoption and mainstreaming of these materials and technologies continue to be an uphill task. While policies and markets need to be strengthened, capacity building and more importantly awareness generation is crucial for the successful adoption of these technologies. Thus attention needs to be paid to all stakeholders in the value chain, their coordination and cooperation in mainstreaming the use of these materials and technologies, which will thus result in the transition towards more green and inclusive economies.