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Government response signals refinements to BNG regime

#181 | Source: Ros Trotman, Partner in Thrings’ Planning and Environment | Published on May 13th, 2026

Biodiversity net gain (BNG) was never going to stand still – and it hasn’t – with the government’s response to development on minor, medium and brownfield sites signalling a clear shift towards making the rules work on the ground.

Under the current legal framework, BNG provisions under the Environment Act 2021 require most developments to deliver at least 10% increase in biodiversity through planning conditions or obligations – often for a minimum of 30 years.

Ros Trotman, Partner in Thrings’ Planning and Environment team, looks at the response to the eight-week consultation and the key changes expected this summer.