The document discusses the Open Addresses project, which aims to build a sustainable open database of addresses in the UK as an alternative to addresses currently only available from the private sector. It hypothesizes that closed address files are not well-suited to modern needs and that an open collaborative model could meet expectations of the modern economy while allowing new services and value-added products. The project is funded by the Release of Data Fund and in initial phases will develop a minimum viable product and engage stakeholders toward establishing an operational open addresses service and detailed business plan.