At Invasive Weed we specialise in biodiversity net gain (BNG) assessments in Selby to help developers, landowners, and planners comply with the UK Environment Act 2021, which mandates a 10% increase in biodiversity for most developments.
A BNG assessment ensures that construction projects not only preserve but also enhance natural habitats, making them more sustainable.
Many local planning authorities now require a BNG strategy as part of planning applications in Selby, making it an essential component of infrastructure, commercial, and residential developments.
Our licensed expert ecologists do baseline habitat surveys, biodiversity impact calculations, and mitigation and enhancement strategies to help projects meet all regulatory requirements.
For a biodiversity net gain assessment in Selby and across the UK, contact us today for a free consultation.
The biodiversity net gain (BNG) assessment process begins with the initial site survey, where ecologists conduct a habitat assessment to establish baseline ecological conditions. In the next step, the DEFRA 4.0 biodiversity metric tool is used to figure out the existing biodiversity value in Selby and biodiversity unit scores.
This is followed by the impact assessment in Selby, which evaluates how the proposed development will affect biodiversity, identifying areas where habitat loss or degradation may occur.
Based on these results, the BNG strategy development in Selby phase plans ways to improve habitats, fix up damaged areas, or make up for lost biodiversity in order to reach the goal of 10% net biodiversity gain.
Finally, the process concludes with the submission of the BNG report, which includes all required documentation for planning applications and regulatory approval.
A biodiversity net gain assessment in Selby includes habitat evaluation, impact calculation, mitigation planning, and compliance reporting.
Biodiversity net gain surveys in Selby include:
Baseline habitat survey in Selby – Ecologists assess the existing ecological value of the site using the DEFRA biodiversity metric tool.
Habitat classification & mapping in Selby – Categorization of different habitat types and their ecological importance.
Biodiversity impact calculation in Selby – Measurement of potential biodiversity loss due to development and calculation of required biodiversity gain.
Mitigation & enhancement strategies in Selby – Development of habitat creation, restoration, or off-site compensation measures to meet BNG requirements.
BNG report & planning recommendations in Selby – Summary of findings, ensuring project compliance with local planning policies and national biodiversity regulations.

The cost of a biodiversity net gain assessment ranges from £1,500 to £7,500, with additional expenses for habitat offsetting, biodiversity credits, and mitigation plans in Selby.
For small-scale developments, a BNG assessment typically costs between £1,500 and £3,000, while medium- to large-scale projects in Selby may range from £3,500 to £7,500, depending on the level of ecological detail required.
Additional costs may include habitat offsetting in Selby (£5,000–£25,000 per hectare), biodiversity credits (£10,000+ per credit), and mitigation plans (£2,000–£5,000).
Contact Invasive Weed in Selby to get customised pricing for a biodiversity net gain assessment in targeted biodiversity.
A biodiversity net gain (BNG) assessment in Selby itself does not require a permit, but achieving biodiversity net gain compliance is now a legal requirement for most developments under the UK planning system.
Local authorities require a BNG strategy as part of planning applications, and failure to comply could lead to project delays or rejection. In some cases, if protected species or habitats are identified during the assessment, additional mitigation licenses may be required from Natural England in Selby or relevant regulatory bodies.
Our team in Selby assists in securing permits, navigating planning requirements, and ensuring full BNG compliance.
A biodiversity net gain (BNG) assessment takes 2–4 weeks in Selby for small projects and 6–8 weeks for larger or complex sites, depending on survey requirements and seasonality.
A basic BNG assessment in Selby for a small development can typically be completed within two to four weeks, while larger or more complex projects may take six to eight weeks in Selby due to detailed habitat evaluations and mitigation planning.
Seasonality also affects BNG assessments in Selby, as certain habitat surveys must be conducted during specific times of the year.
A biodiversity net gain (BNG) assessment of environmental strategies includes habitat creation (wildflower meadows, wetlands, and woodlands), biodiversity corridors, rewilding projects, and off-site biodiversity credits in Selby.
We work with developers to integrate BNG measures in Selby into their projects, ensuring they align with sustainability goals and UK biodiversity laws.
Contact Invasive Weed in Selby to get detailed information on biodiversity net gain assessment in targeted biodiversity.
We cover Selby (North Yorkshire)