The United Kingdom constitution – a mapping exercise – House of Commons Library
‘It is often said that the constitution of the United Kingdom of Great Britain and Northern Ireland is “unwritten”, or even that it does not exist. In fact, and as the Law Wales website notes, “most of the laws, conventions and understandings relating to the constitution are written down”, it is just that “they cannot be found conveniently written down all in one place”. This lack of a codified constitution makes the UK unusual but not unique: Israel and New Zealand also lack fully codified constitutions.’
House of Commons Library, 25th March 2025
Source: commonslibrary.parliament.uk