Human activities increasingly damage the environment, contributing to global warming through the greenhouse effect. Reducing the carbon footprint (Low Carbon Footprint) is essential to mitigating these impacts. One strategy in building design is the use of local materials, especially on islands distant from city centers. Belitung Island, rich in kaolin, presents an opportunity to utilize this underutilized resource for interior wall finishing. This research explores the application of kaolin as a wall finishing element in Belitung buildings, aiming to empower local materials and human resources while reducing carbon emissions. The study employs a qualitative method with a naturalist paradigm, using observation, interviews, and field experiments. The expected outcome is a new wall finishing method utilizing Belitung’s kaolin, enhancing public awareness of low carbon footprint principles. The benefits include high-quality interior design with natural aesthetics, economic sustainability for Belitung’s community, and a harmonious balance between human activities and nature. This research highlights the potential of kaolin as an environmentally friendly material in sustainable building practices.