The State of Biodiversity Net Gain in 2026: Key Policy Updates
Overview Of The Current BNG Policy Landscape
Biodiversity Net Gain (BNG) is now a legal requirement in England, aiming to increase biodiversity by ensuring developments leave habitats in a better state than before. Developers must deliver at least a 10% net gain, either on-site, off-site, or via biodiversity credits, verified through the national register. BioGains facilitates compliance by providing verified habitat, hedge, and watercourse units.
Key Updates To DEFRA Metric 4.1 and The Environment Act
The DEFRA Metric 4.1 remains the standard for calculating biodiversity units. BioGains’ units are designed to comply fully with this metric, enabling developers to meet statutory obligations efficiently. The Environment Act enforces long-term habitat management (for a minimum of 30 years), ensuring that biodiversity gains are lasting.
Ministers announced in December 2025 that a new de minimis exemption threshold would be introduced via an update to the legislation, meaning BNG will only be applied to developments greater than 0.2ha in area. Further announcements are due in Q1 of 2026 regarding possible changes to how brownfield sites are assessed.
How Natural England’s Latest Guidance Impacts Developers
Natural England’s guidance highlights the importance of early planning and proper metric use. Developers must submit Biodiversity Gain Plans, which, where applicable, will detail any off-site units that have been required, ensuring a streamlined solution without delays. This approach ensures projects meet regulatory requirements while delivering measurable ecological improvements.
Market insights: Demand, Supply, and Unit Pricing Trends
Demand for off-site BNG units is rising as developers seek reliable compliance options. BioGains’ habitat banks supply a range of units types, from fractional unit sales to large volume requirements, ensuring flexibility in meeting project needs. The market for biodiversity units is expanding, with the need for biodiversity credits sold via the Secretary of State becoming the infrequently used route to market that it was originally designed to be.
How BioGains is Adapting to The Evolving BNG framework
BioGains continues to expand its habitat bank portfolio, integrating DEFRA Metric 4.1 updates and aligning with LNRS priorities. Their ecologist-designed units simplify compliance, reduce legal complexity, and allow developers to meet their biodiversity net gain requirements effectively and efficiently, contributing to long-term environmental restoration while supporting landowners with new income streams.
Buy Units With BioGains Today
Ensure your projects comply with the latest BNG regulations while helping the environment. BioGains’ verified habitat, hedge, and watercourse units make it simple to meet statutory obligations and increase biodiversity.
Start today and secure your off-site units to support sustainable development and meaningful ecological recovery.