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UK Biodiversity Indicators 2023. Indicator C1: Protected areas 2023


Updated 14 November 2023.

These documents support response indicator C1 – Protected areas. The documents include a datasheet and technical background document.

This indicator shows the extent of UK protected areas both on land and at sea. The two extent measures are a calculation of the net (non-overlapping) extent of protected areas using mean high water as the boundary between the on-land and at-sea measures. The indicator also shows the condition of terrestrial and coastal features on Areas or Sites of Special Scientific Interest (A/SSSIs). A/SSSIs are designated for their ‘features’ – habitats or species which give them their scientific interest. Each country in the UK assesses the condition of features and reports either the area or the number of features in favourable or unfavourable-recovering condition. These assessments are converted to percentages in this indicator, to allow them to be combined, but the percentage does not equate exactly to the area that is favourable or unfavourable-recovering.

These resources may not be fully accessible for all users. If you need a copy of any of these resources in a different or more accessible format, please get in touch.

More information on UK Biodiversity Indicator C1 is available on the UKBI C1 webpage.

Resource type Publication

Topic category Environment

Reference date 2023·11·14

Department for Environment, Food and Rural Affairs, UK. 2023. UK Biodiversity Indicators 2023.

The UK Biodiversity Indicators were created to provide a measure for reporting on the UK’s progress towards meeting international biodiversity goals and targets and were first published in 2007.

Responsible organisation
Communications, JNCC distributor

Limitations on public access No limitations

Use constraints Copyright of data and/or information presented in these resources may not reside solely with the distributor (JNCC). For more information, please contact

Metadata date 2024·01·10

Metadata point of contact
Communications, JNCC

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