The overhaul of the Green Book, a cornerstone of government investment decisions, has reached a pivotal milestone as Chancellor Rachel Reeves writes to mayors across the UK, outlining further reforms aimed at boosting investment across all regions. This move comes a year after the review began and is designed to address concerns over the uneven distribution of funding, which has historically favoured certain areas over others.
The updated Green Book no longer relies solely on narrow metrics such as benefit-cost ratios, instead incorporating a more comprehensive assessment of economic and social impacts that are crucial for fostering growth. This revised approach includes factors like business environment favourability and regional innovation levels, ensuring that decisions reflect the complex needs of various regions.
Key changes also include an independent review into the discount rate to ensure fair assessments of long-term investments. Furthermore, guidance on business cases has been significantly streamlined, reducing it by more than half, in a bid to cut through bureaucracy and minimize administrative burdens for local authorities and project developers.
The government is collaborating closely with regional leaders on 'place-based' business cases in key locations such as Plymouth, Birmingham, Liverpool, and Port Talbot. These initiatives prioritize local priorities and expertise in project appraisal. In Plymouth, focus is on maximizing the impact of defence investments, while Birmingham concentrates on coordinated health, housing, and skills investments. Liverpool aims to unlock infrastructure investment for growth and housebuilding acceleration, while Port Talbot addresses systemic barriers to economic growth.
For the first time, business cases for major government projects are being consistently published, enhancing transparency and allowing the public to understand decision-making processes. This reform is expected to significantly influence projects like Northern Powerhouse Rail, ensuring broader considerations such as local growth, job creation, and prosperity are fully integrated into decisions.
The overhaul will also support mayors in effectively deploying £900 million of local growth funding over four years. Chancellor Reeves emphasized the central role this work plays in driving growth and improving living standards across every region of the UK, expressing gratitude for the partnership between central government and local leaders in shaping this critical agenda.