Biodiversity net gain (BNG)

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An approach to development, and/or land management, that aims to leave the natural environment in a measurably better state than it was beforehand.

A term used by regulators in the UK, to make biodiversity net gain a mandatory element of the English planning system and national planning policy frameworks. It is intended to replace the current principle of “no net loss” which is regarded as insufficient to meet the UK’s biodiversity targets.


Understanding biodiversity net gain (UK Government)
Biodiversity Net Gain – Principles and Guidance for UK Construction and Developments (CIEEM)