What Is BNG?

Biodiversity Net Gain (BNG) is now a legal requirement for most developments in England under the Environment Act 2021.
As of 2024, both major and small developments must deliver a minimum 10% increase in biodiversity compared with the site’s pre-development condition.

To comply, developers must:

Establish the baseline biodiversity value of the site

Use the government’s Statutory Biodiversity Metric to calculate losses and required gains

Provide a Biodiversity Gain Plan to the Local Planning Authority

Commit to 30 years of habitat creation, enhancement and management

BNG aims to ensure developments leave nature in a measurably better state.

Our Ecology & BNG Services

We provide a complete package to help you meet ecological and planning requirements smoothly and efficiently:

1. Ecological & Habitat Surveys

Baseline habitat mapping

Identification of ecological constraints and opportunities

Protected species considerations

2. BNG Metric Calculations

Pre- and post-development biodiversity unit calculations

Use of the official Statutory Biodiversity Metric

Clear outputs for planning submission

3. Biodiversity Gain Plans

Full, LPA-compliant plans

On-site and off-site habitat proposals

Long-term management and monitoring plans (30 years)

4. Habitat Creation & Enhancement Advice

Practical, cost-effective measures to deliver net gain

Connectivity, planting, and landscape design input

5. Off-Site Units & Statutory Credits

Guidance on sourcing off-site BNG units

Support with statutory credit purchase if required

6. Planning Support

Submission-ready documentation

Liaison with planning officers

Smooth integration with Ecology, Sustainability, and EIA/ES chapters

Why Choose Us?