Smart buildings, utilising automation and advanced technologies, play a key role in reducing carbon emissions and energy consumption, supporting sustainability goals. By integrating energy-efficient systems like automated lighting and HVAC, these buildings optimise energy use and reduce costs. The Internet of Things (IoT) enables real-time monitoring, allowing adaptive operations and efficient maintenance. Additionally, smart buildings incorporate renewable energy sources, such as solar panels, to decrease reliance on fossil fuels. Advanced water management systems further enhance efficiency, while improved air quality and environmental sustainability boost occupant well-being and productivity, making smart buildings essential for a sustainable future.