[5] The idea for what would eventually become the AONB designation was first put forward by John Dower in his 1945 Report to the Government on National Parks in England and Wales.
Dower suggested there was need for protection of certain naturally beautiful landscapes that were unsuitable as national parks owing to their small size and lack of wildness.
[8] There are 46 Areas of Outstanding Natural Beauty in the United Kingdom: 33 in England, four in Wales, one on the England–Wales border, and eight in Northern Ireland.
[10] AONBs vary greatly in terms of size, type and use of land, and whether they are partly or wholly open to the public.
However, further regulation and protection of AONBs in England and Wales was added by the Countryside and Rights of Way (CRoW) Act 2000, under which new designations are now made,[13][14] In the National Planning Policy Framework (March 2012), the government stated that AONBs and national parks have equal status when it comes to planning decisions on landscape issues.
Two of the AONBs (the Cotswolds and the Chilterns), which extend into a large number of local authority areas, have their own statutory bodies, known as conservation boards.
As required by the CRoW Act, each AONB has a management plan that sets out the characteristics and special qualities of the landscape and how they will be conserved and enhanced.
[20] In September 2007 government approval was finally given for the development of a new football ground for Brighton and Hove Albion within the boundaries of the Sussex Downs AONB, after a fierce fight by conservationists.
[21] Writing in 2006, Professor Adrian Phillips listed threats facing AONBs, which he says include uncertainty over future support for land management, increasing development pressures, the impacts of globalization, and climate change.