Research and analysis

Methodology Note: A data led assessment of areas in England that count or have potential to count towards the 30by30 target

This paper outlines data-driven spatial analysis used to assess areas of land across England that meet the 30by30 criteria or have potential to meet the criteria in the future.

• From: Department for Environment, Food & Rural Affairs
• Published: 18 March 2026

Applies to England

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Methodology Note: A data led assessment of areas in England that count or have potential to count towards the 30by30 target

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We have committed to protecting 30% of the UK’s land and sea by 2030 (30by30). This paper explains the data-driven spatial approach used by the Government to determine England’s progress towards delivering this target. Presented here are area estimates of land already contributing to the 30by30 target, as well as land with ecological potential to contribute to this target in the future. Also included are the methodology assumptions, limitations and caveats.

Contact details: 30by30onland@defra.gov.uk

Published 18 March 2026