Save Britain's Heritage (styled as SAVE Britain's Heritage) is a British charity, created in 1975 by a group of journalists, historians, architects, and planners to campaign publicly for endangered historic buildings. It is also active on the broader issues of preservation policy. SAVE Britain's Heritage is a registered charity governed by a board of trustees. SAVE Britain's Heritage was the first organization to campaign for the introduction of the Thirty-Year Rule, which now makes outstanding post-war buildings in England and Wales eligible for listing.