Outline a hypothetical commercial building project, defining its intended use, location, and scale. Provide a simplified financial evaluation considering initial costs, expected revenue streams (like rental income), and basic cash flow analysis. Calculate the Cost Benefit Ratio (CBR) for the project and discuss how this information inform your decision on the project feasibility, potential financial risks and how the risks can be mitigated. Analyse the environmental impact of the project throughout its life cycle, including construction phase, operation, and potential demolition. Consider energy efficiency, waste management, and sustainable building practices