Heritage Coasts boundaries. Heritage coasts are ‘defined’ rather than designated, so there isn’t a statutory designation process like that associated with national parks and areas of outstanding natural beauty (AONB). They were established to conserve the best stretches of undeveloped coast in England. A heritage coast is defined by agreement between the relevant maritime local authorities and Natural England. The national policy framework and objectives for heritage coasts were developed by the Countryside Commission, a predecessor of Natural England, and ratified by government.  For more information see the following links:Heritage Coasts - Definition, Purpose and Natural England's RoleNatural England's report - Review and evaluation of England's Heritage Coasts publications.naturalengland.org.uk/publication/4594438590431232?category=56001Full metadata can be viewed on data.gov.uk.