This paper explores the integration of green architecture and circular economy principles in Nigeria, aiming to achieve sustainable development goals. Leveraging Building Information Modeling (BIM), the study examines BIM's role in driving sustainable practices within the Nigerian construction industry. The paper showcases how BIM facilitates lifecycle analysis, facility management, and retrofitting of existing buildings for improved energy performance and circularity. Real-world examples illustrate BIM's potential to enhance building sustainability and operational efficiency. Furthermore, the study emphasizes BIM's contribution to collaborative decision-making and stakeholder engagement. BIM-driven communication tools effectively convey sustainable architecture concepts to diverse stakeholders. Addressing challenges, the paper underscores the need for policy support and capacity building to encourage BIM adoption in green architectural projects in Nigeria. In conclusion, embracing BIM as a catalyst for sustainable architecture and circular economy practices can accelerate Nigeria's transition towards a greener, more resilient, and socially equitable future