There are currently 2.6 million people with Type 2 diabetes in England, accounting for just under nine per cent of the annual NHS budget (£8.8 billion a year). There are currently 5 million people in England at high risk of developing Type 2 diabetes and, if current trends persist, one in ten will develop Type 2 diabetes. At this rate, diabetes, pre diabetes and the complications of these conditions would result in a massive increase in the burden of disease and costs of treatment. Evidence shows that prevention is cost-effective for many cases of Type 2 diabetes. But these interventions do not save costs to the NHS. This is because interventions to prevent diabetes can be expensive if sustained for a long period of time, but also because the benefits are relatively short and they translate into savings only in the long term. NIHR CLAHRC North Thames is currently working on a project which aims to review local economies’ plans to prevent diabetes in terms of their scale against the population estimated to be at risk and estimate the cost and impact of those plans.