Biodiversity Net Gain Requirements

Biodiversity Net Gain Requirements mandate that most new developments in England deliver at least a 10% measurable increase in biodiversity, secured for a minimum of 30 years. Developers must calculate biodiversity value using the statutory metric, submit an approved biodiversity gain plan, and secure on-site or off-site units before construction begins. Biodiversity Units UK supports the full process, from sourcing verified BNG units to managing legal agreements and council approvals, ensuring smooth compliance and reduced planning risk.