To date, there are at least 35 cases of post office services being delivered from parish churches, Methodist chapels, United Reformed churches, church halls and centres. They are all ensuring that communities are able to access local post office facilities where none would otherwise exist.
The Cathedral and Church Buildings Division of the Church of England, the Methodist Church and the United Reformed Church worked closely with Post Office Ltd to seek to identify opportunities for church buildings to host such services in order to maintain their presence, particularly in isolated rural communities. This work produced Guidelines and Best Practice for the Provision of a Hosted Post Office® Service in Churches and Chapels, which you can download by clicking the link.
In addition many Rural Community Action Networks will give advice and have developing toolkits for communities who want to set up post office services/and or community shop. To find contact details for your Rural Community Action Network go to: http://www.acre.org.uk/about-rcan
See also the case study for St James, West Hampstead