Biodiversity is vital to sustain the UK’s society and economy. Improving biodiversity is integral to sustainable development, and biodiversity net gain (BNG) is an approach to embed and demonstrate this.

Working in partnership, CIRIA, CIEEM and IEMA have produced good practice guidance on BNG (CIRIA C776a), which builds on the good practice principles issued in 2016.

Given the emergent, but rapidly developing approach to BNG, the project involved extensive consultation with stakeholders. Also, organisations were invited to submit short case studies to illustrate how they are approaching BNG.

The case studies are reproduced in full in this document. Some mention awards or metrics that are relevant to the development described. However, these have not been subject to any form of audit as part of this project and are published as submitted. However, the collection demonstrates the interest and commitment of stakeholders towards achieving BNG.

This document has been developed collaboratively by CIEEM, IEMA and CIRIA.