With increasing demand for Government funding and philanthropic support from charitable trusts and HNWIs as a result of Covid-19, heritage organisations, and those involved in delivering projects in the historic environment, need robust evidence to help hone their case for support. Now, more than ever, organisations need to present a strong strategic narrative backed up by clear financial modelling and an articulate and well-argued economic case. Referencing the UK Government’s Green Book on project appraisal and evaluation, this practical and evidence-based session will draw on lessons from the HM Treasury process for developing ‘Five Case’ business cases and will offer advice on how we can all present the strongest possible case for support for our shared historic environment.