Biodiversity
Net Gain
We support the delivery of Biodiversity Net Gain (BNG) through clear, practical assessments and strategies that meet planning requirements while remaining commercially viable and deliverable. Our approach maximises biodiversity improvements are integrated into development from the outset, not added as an afterthought.
What is Biodiversity Net Gain?
Biodiversity Net Gain (BNG) is a planning requirement that ensures development leaves biodiversity in a measurably better state than before. It involves assessing existing habitats, calculating biodiversity value using the statutory metric, and designing strategies to achieve a minimum 10% net gain through on-site or off-site measures, in line with current UK planning policy.
Why a Biodiversity New Gain Matters
BNG is now a mandatory requirement for most developments in England, making it a critical part of the planning process. Without a clear and deliverable BNG strategy, planning approval can be delayed or refused. Early consideration of BNG helps inform site design, manage land use efficiently and avoid costly redesigns later in the process.
Typical Deliverables for Biodiversity Net Gain
BNG assessments typically include habitat surveys, baseline calculations using the statutory metric, and clear biodiversity gain strategies. This includes River MoRPH Condition Assessments for natural watercourses. Deliverables may also include habitat creation plans, management and monitoring proposals, and supporting documentation for planning submissions and discharge of conditions.
Outcomes and Value of a Biodiversity Net Gain
A well-prepared BNG strategy provides clarity and confidence for both clients and planners. It ensures compliance with policy while supporting efficient land use and viable development. By integrating biodiversity considerations early, projects can progress smoothly while delivering measurable environmental improvements and long-term ecological value.
When is a Biodiversity Net Gain needed?
BNG is required for most planning applications involving development in England. It should be considered at the earliest stages of a project to inform site layout and design. It is typically required at planning submission and will often form part of post-consent conditions, including habitat delivery, monitoring and long-term management.
Most developments in England are now required to deliver a minimum 10% Biodiversity Net Gain as part of planning. It applies to the majority of planning applications unless specific exemptions apply.
Yes, this is the primary location for mitigation. If not, off-site solutions or the purchase of biodiversity units may be used. The right approach depends on site constraints, layout and viability
As early as possible. Incorporating BNG at early design stage helps avoid redesign, reduces cost and ensures a more efficient planning process.
It’s a government-approved tool used to calculate biodiversity value before and after development. It ensures gains are measurable, consistent and policy-compliant.
Often, yes. Early input allows BNG to be integrated into the design rather than becoming a constraint later in the process.
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