Market infrastructure · Compliance tools
BNG Exemption Checker
Six questions, one indicative answer.
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Checks whether your development in England is caught by Biodiversity Net Gain under the rules in force from 6 August 2026. Indicative only — not planning advice.
What changed on 6 August 2026
- Sites of 0.2 hectares or less are exempt, unless priority habitat is affected.
- Temporary developments of five years or less are exempt.
- The self-build and custom-build exemption has been removed.
- Qualifying minor developments may go straight to off-site delivery.