This paper delves into the role of civil society in propelling green building practices, one key to a sustainable future. It focuses on the Saudi Green Building Forum (SGBF) “in Consultative Status with the United Nations Economic and Social Council, since 2017” as a case study that illuminates how civil society organizations contribute to environmental stewardship, social equity, and economic prosperity in the construction sector. The concept of green building is traced from its origins through its global development, explicitly emphasizing notable examples from Gulf Cooperation Council (GCC) countries and Saudi Arabia. The paper reassures the audience by outlining the unique and robust alignment of SGBF’s initiatives and its support for the Sustainable Development Goals (SDGs), underscoring its commitment to global sustainability. The study presents a descriptive analysis based on desktop research, illustrating the transformative impact of civil society in promoting sustainable construction practices through the SGBF. Key aspects covered include the historical evolution of the green building movement, successful implementations of green building standards, and the activation of civil society institutions and organizations in driving sustainability. The paper showcases SGBF’s strategies and projects as exemplary models of civil society’s contribution to greening the built environment and fostering a sustainable future in Saudi Arabia and beyond. The objective is to inspire by highlighting civil society’s far-reaching impact on the construction sector’s environmental, social, and economic dimensions of sustainable development.