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Frequently Asked Questions (FAQs)

Whether you are a local independent developer navigating BNG for the first time or a national housebuilder managing a complex pipeline, this comprehensive guide answers your critical legislative, commercial, and operational questions.

General & Legislative Basics (For All Developers)

Biodiversity Net Gain (BNG) is mandatory for most English developments, requiring a minimum 10% biodiversity gain maintained for at least 30 years. Small sites under 0.2 hectares are exempt, provided they impact less than 25 square metres of standard habitat or 5 linear metres of hedgerow. However, any impact on priority habitats (ancient trees or species rich grassland) instantly voids this exemption, making BNG compliance compulsory regardless of site size.

Navigating the BNG Hierarchy (On-site vs. Off-site)

Developers must follow a strict statutory hierarchy when achieving their 10% target:

  1. Avoid: Minimize habitat damage on-site through clever design.
  2. Mitigate: Enhance and create habitats directly within the development boundary (On-site BNG).
  3. Off-site: Buy off-site biodiversity units if the 10% target cannot be met within the development footprint.

Buying Off-site Units from Wild BNG, Derbyshire Wildlife Trust

Wild BNG is our bespoke commercial service offering high-quality, legally compliant off-site biodiversity units. By purchasing units from DWT, you transfer the long-term habitat creation, maintenance, and 30-year legal liability to the county's leading conservation charity.

Financials, Procurement, & Process

The pricing of off-site biodiversity units is variable and depends on the specific habitat type, rarity, location, and the scale of your order. To get an initial estimate use the Wild BNG quoting tool or contact our Wild BNG team directly for a tailored, site-specific quotation.

Why Choose Wild BNG?

Local Expertise: Wild BNG is a branch of Derbyshire Wildlife Trust, Derbyshire's primary nature conservation organization. We understand local planning authority expectations perfectly, ensuring faster application turnarounds.

Guaranteed 30-Year Security: We own or long-lease our land banks. Unlike private landowners who may pose long-term delivery risks, Derbyshire Wildlife Trust has the institutional longevity to guarantee habitat security for the full 30 years.

True Corporate Social Responsibility (CSR): Every pound invested in units purchased from Wild BNG Habitat banks stays in Derbyshire. Your environmental compliance spend directly funds local rewilding, community nature projects, and wildlife protection across the county.

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