The article discusses how traditional Indonesian architecture, which is passed down through generations, considers the surrounding climate for energy efficiency. In contrast, modern architecture often overlooks this connection. The research emphasizes the importance of harmonizing buildings with nature to improve energy efficiency and reduce construction costs. By studying vernacular architecture and its relationship with contemporary design, the paper highlights the need for architects to consider elements like air temperature, wind, sun radiation, and humidity in tropical regions like Indonesia. This approach can lead to more sustainable and efficient buildings.