This paper introduces a method for integrating ancient Vastu Shastra principles into modern house division using Large Language Models (LLMs). The Vastu Shastra Tool combines traditional wisdom with modern technology, offering features like house map division based on com-pass degrees. It aims to help homeowners and architects design spaces in accordance with Vastu principles. By incorporating Vastu Shastra into modern techniques, tool assists in making optimal choices for room placements and remedies for inaccuracies. This technology and traditional knowledge fusion is a significant advancement in architectural design, promoting harmony and well-being in living spaces. The paper has been supported with case studies on Angkor Wat and Infrastructure Leasing & Financial Services (IL & FS) which depict the Vastu features of these places and the results obtained from our tool aligned with these features.