What Is Biodiversity Net Gain (BNG)?

Biodiversity Net Gain (BNG) is a development approach aimed at ensuring a positive impact on biodiversity compared to the pre-development state. It requires that the biodiversity value of the development exceeds that of the original habitat by at least 10%.

Will BNG Apply to My Development?

For most land development projects, the general BNG condition will apply. However, there are exemptions and timelines for different types of developments. For example, the BNG requirement for small sites will start on April 2, 2024, and nationally significant infrastructure projects won’t be subject to BNG until 2025. Exemptions also exist for specific types of developments, such as householder applications and certain self-build projects.

What Do I Need to Do?

If BNG applies to your development, you must achieve a 10% BNG as measured by DEFRA’s biodiversity metric. This can be accomplished on-site, off-site, or by purchasing statutory biodiversity credits. There’s a hierarchy to follow, with purchasing credits as a last resort.

It’s crucial to maintain the habitat created for BNG for at least 30 years, which must be legally secured through agreements or planning conditions. You’ll need to submit a biodiversity gain plan to the local planning authority for approval before commencing development.

Conclusion: Considering BNG in Your Development Process

While the new BNG regime contributes to wildlife recovery during land development, it also brings significant considerations and obligations for developers.

Early consultation with ecologists is recommended to navigate site selection, biodiversity assessment, and the delivery and maintenance of BNG. Taking these steps early on in the development process can help streamline compliance with BNG regulations and ensure positive outcomes for biodiversity.

If you have a project you are considering, 186 can help to work collaboratively with architects and planners to achieve your goals.

Please get in touch by calling 0191 435 6915 or [email protected] for more information.