Biodiversity Net Gain (BNG) Surveys & Consultants in Yorkshire and the Humber

What does the minimum 10% biodiversity net gain requirement mean?
The minimum 10% biodiversity net gain requirement means that for most planning applications in England (including across Yorkshire and the Humber) developers must demonstrate that their development will provide a minimum uplift of 10% biodiversity units over the baseline.  This uplift must be secured for a minimum period of 30 years and tracked through the lifecycle of the project. The requirement ensures that development leaves nature in a better state than before.

Mandatory biodiversity net gain under the Environment Act 2021 applies for major development applications in England from 12 February 2024, and for most other applications (including many minor sites) from 2 April 2024.  For Yorkshire and the Humber this means recent planning applications must incorporate BNG or risk non-compliance with local policy.

Yes. The statutory biodiversity metric (version SBM 4.0) developed by DEFRA is the required tool for calculating biodiversity units across England including Yorkshire and the Humber.  As BNG consultants we use the metric to model the baseline, post-development scenario and any off-site or on-site interventions, ensuring the calculations align with LPA expectations.

Yes if on-site opportunities for habitat creation or enhancement are limited, developers may opt for off-site habitat delivery or purchase biodiversity units/credits as a last resort.  That said, many local authorities in Yorkshire and the Humber emphasise the importance of on-site delivery or habitat enhancement within the region. Our consultancy advises on the correct balance of on-site versus off-site solutions, and the implications of spatial risk multipliers, management obligations and local authority preferences.

In this region, typical habitat types include chalk grasslands (e.g., Yorkshire Wolds), estuarine wetlands (Humber), upland moor, rural farmland, green urban infrastructure and post-industrial land. Special designations such as SSSIs, AONBs and Green Belt may create constraints. For BNG delivery this means that:

• baseline habitat distinctiveness and condition need rigorous assessment.
• the trading rules of the metric must be followed (e.g., you cannot replace very-high distinctiveness habitat with a lower band) GOV.UK;
• planning for long-term management (30 years +) is essential in rural and remote locations.
  As your BNG consultant we integrate local mapping, habitat baseline data (for example from South Yorkshire natural capital mapping) South Yorkshire MCA and LPA policy to design site-appropriate, deliverable biodiversity gain strategies.

BNG is more than compliance by embedding biodiversity uplift into your development you also support broader objectives: environmental sustainability, climate change adaptation, enhancement of ecosystem services, natural capital appreciation and integration of wildlife conservation practices. Using a natural capital approach and green infrastructure planning helps to align your scheme with region-wide biodiversity action plans and demonstrate value beyond simply the 10% uplift. These aspects strengthen planning submissions and can add reputational and ecological value to your project.

• Commission a preliminary BNG survey early, ideally during pre-application.
• Ensure the consultant is familiar with local authority policy in your LPA area (e.g., whether additional local gain targets exist).
• Use the statutory biodiversity metric (SBM 4.0) and ensure metric outputs are auditable and transparent.
• Develop a habitat creation/enhancement plan, with costings, timescales, and legal-agreement advice (S106 or covenant).
• Secure management and monitoring arrangements for a minimum of 30 years and ensure you liaise with any off-site habitat providers if used.
  By following these steps, you reduce risk of planning delay or refusal, embed sustainable development values and align your project with nature-recovery ambitions in Yorkshire and the Humber.

Biodiversity action plans (BAPs) outline priority habitats and species for conservation across Yorkshire and the Humber. Integrating these BAP objectives into biodiversity net gain Yorkshire and the Humber assessments ensures that habitat creation and enhancement directly contribute to regional biodiversity targets. ACP Consultants aligns every BNG project with both national and local biodiversity action plans, ensuring ecological continuity, measurable results and long-term environmental sustainability.

Environmental sustainability underpins all aspects of BNG. By delivering measurable biodiversity enhancement, sustainable drainage, and green infrastructure planning, developers not only meet planning policy but also contribute to broader sustainability goals. In Yorkshire and the Humber, ACP Consultants ensures each BNG consultant Yorkshire and the Humber project integrates resource efficiency, carbon reduction and climate resilience key principles of sustainable development goals (SDGs).

BNG can significantly aid climate change adaptation by strengthening ecosystem resilience and natural flood management. In the Humber catchment, for example, habitat creation and wetland restoration can reduce flood risk while enhancing biodiversity. ACP Consultants designs regional BNG guidance and schemes that address both biodiversity improvement and climate resilience, creating long-term, adaptable land management solutions for developers and local authorities.

The natural capital approach values the benefits provided by ecosystems clean air, water regulation, pollination and wellbeing by integrating them into decision-making. In our biodiversity net gain Yorkshire and the Humber assessments, we use this approach to quantify not only habitat units but also broader ecosystem services valuation. This strengthens planning justification and demonstrates wider community benefit.

Ecological impact assessments (EcIAs) evaluate how development affects habitats and species. In Yorkshire and the Humber, these assessments form the foundation for BNG consultants Yorkshire and the Humber to measure baseline conditions and forecast ecological uplift. By combining EcIA findings with the statutory biodiversity metric, ACP Consultants ensures that every proposal achieves compliance, delivers measurable gains, and meets regional BNG guidance set by local authorities.

For more detailed or complex projects—such as those involving large mixed-use sites or regional strategies—the statutory metric can also complement environmental impact assessments, ensuring all ecological changes and residual effects are captured within wider planning documentation.

Ecological restoration consultants design and oversee habitat creation and restoration projects, often in collaboration with BNG professionals. At ACP Consultants, our multidisciplinary team combines restoration expertise with statutory metric proficiency to deliver high-quality, enduring biodiversity outcomes. Whether it’s the re-establishment of chalk grassland in East Riding or woodland corridors in West Yorkshire, our biodiversity net gain consultants Yorkshire and the Humber ensure every intervention supports long-term nature recovery.

Typical wildlife conservation practices across Yorkshire and the Humber include protecting nesting birds, enhancing bat roost potential, restoring hedgerows and planting native woodland buffers. These practices not only support biodiversity but also directly contribute to achieving statutory BNG targets. ACP Consultants integrates such measures into each project, aligning them with regional BNG guidance, biodiversity action plans, and green infrastructure planning.

High-quality ecological surveys Yorkshire are fundamental to reliable metric results. Baseline errors can lead to incorrect biodiversity unit calculations and planning delays. ACP Consultants’ regional team conducts detailed field surveys assessing habitat distinctiveness, condition and strategic significance to ensure accurate inputs for the statutory biodiversity metric. This precision guarantees your BNG consultants Yorkshire and the Humber assessment is defensible and compliant with LPA expectations.

Implementing long-term land management solutions is crucial to maintain biodiversity gains for the mandatory 30-year period. These include scheduled habitat maintenance, monitoring, adaptive management and periodic ecological reporting. ACP Consultants works with landowners and habitat-bank providers across Yorkshire and the Humber to design robust management plans that deliver sustained environmental sustainability and measurable improvement to natural capital assets.