We are living in an era where environmental challenges are becoming increasingly urgent, as the pursuit of economic growth continues to accelerate. The construction industry, in particular, significantly contributes to greenhouse gas emissions due to the processes involved in the production, construction, and lifecycle use of building materials. Addressing this issue requires innovative approaches and materials that balance economic and environmental priorities. Hempcrete, a composite material made from hemp shives (the woody core of the hemp plant) and lime, has emerged as a promising solution. It is recognized as a “carbon-negative” material because it absorbs more CO2 during its lifecycle than it emits. Moreover, hempcrete is derived from natural, renewable resources, making it inherently eco-friendly. This material is not only sustainable but also offers exceptional properties, such as being lightweight, highly soundproof, and providing superior thermal insulation. The application of hempcrete in construction projects represents a forward-thinking approach to green building. This paper delves into the performance characteristics of hempcrete and highlights its multifaceted benefits. Beyond its contributions to environmental protection and energy efficiency, hempcrete can reduce the loads on buildings by replacing traditional masonry materials like burned clay and unburned bricks, it saves the materials like concrete and steel, further promoting sustainability in the construction industry.