The use of sustainable building materials is a top priority since the construction sector is one of the biggest worldwide greenhouse gas emitters. Fast-growing and sustainable hemp has emerged as a possible replacement for conventional concrete as a construction material. In comparison to conventional concrete, hempcrete, a composite material comprised of hemp hurd and cement binders, has higher insulation and hygrothermal characteristics. This paper gives a general overview of hemp's usage in concrete as a sustainable construction material, outlining its self-curing qualities, prospective uses, and advantages for the environment. We also look at the potential and problems that come with using hempcrete, such as supply chain constraints, regulatory obstacles, and the need for additional research and development. In the conclusion, we contend that the incorporation of hemp into concrete has the potential to revolutionise the building sector by giving designers and builders a green and ethical option.