The law and best practice for the renaming of streets and buildings (December 2020) page 27
Councils should manage their SNN records and information effectively, keeping them organised and accessible for as long as they are needed but no longer. These retention guidelines are issued to support councils in the areas of Data Protection, General Data Protection Regulation (GDPR), Freedom of Information and the relevant access-to-information legislation. Each council must ensure the actions shown in the guidelines are ratified internally within the council.
Recommended best practice
Function
Retention Action
Application for a new street name and to rename an existing street.
Destroy 6 years after last action.
Application for new property number or name and to renumber or rename an existing property.
Destroy 6 years after last action.
Official decision document and plan approving a new street name or approving a rename to an existing street.
Permanent.
Official decision document and plan approving a new property number or name and approving a renumber or rename to an existing property.
Permanent.
Request to Royal Mail for postcode allocation.
Destroy 6 years after last action.
Confirmation from Royal Mail of postcode allocation.
Destroy 6 years after last action.
New street name and renamed street allocation or distribution document.
Destroy 6 years after last action.
New property number or name and renumber or rename to an existing property allocation or distribution document.
Destroy 6 years after last action.
Working files relating to Street Naming and Numbering.
Destroy 4 years after last action.