Biodiversity Net Gain delivery
BNG units available around England
Biodiversity enhancement with Biffa's BNG units
With the introduction of the mandatory requirement for Biodiversity Net Gain (BNG) for new developments in England developers must achieve a minimum 10% gain in biodiversity measured against the site’s pre-development ecological baseline.
Biffa has a large portfolio of closed and restored landfill sites which offer developers the opportunity to increase the biodiversity of their sites through the purchase of additional biodiversity units.
Choosing BNG units from Biffa offers these benefits
Biffa BNG Brochure
With over 60 managed sites, we offer flexible, bespoke solutions through an easy, transparent purchasing process for developers of all sizes.
of former landfill sites around England which will be restored for
biodiversity and benefit from long term management plans.
Let us know your requirements and an expert will be in touch to discuss your project.
Barn Street provides over 52.21 BNG units
Our Barn Street site has been restored and managed for biodiversity since 1993. Located within the Medway Local Planning Authority and the North Kent Plain National Character Area, the site delivers measurable biodiversity net gain through targeted habitat creation and enhancement. Through careful management, the site flourishes as a haven for wildlife, with vibrant, biodiverse habitats and thriving plant communities.
Frequently Asked Questions
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What is Biodiversity Net Gain?
Biodiversity Net Gain makes sure that development projects improve the natural environment, leaving it in a better condition. It requires a measurable increase in biodiversity — at least 10% — achieved by creating or enhancing habitats either onsite, offsite, or through biodiversity credits.
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How is BNG calculated?
Developers use the Biodiversity Metric to calculate the biodiversity value of their site before and after development, ensuring the required 10% increase is achieved. If onsite gains are insufficient, developers can purchase biodiversity units from registered offsite gain sites or use statutory biodiversity credits.
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Are there any exemptions to BNG?
Certain small developments, such as those with fewer than 10 dwellings, may be exempt or eligible for simplified metrics.
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How long will the agreement be in place?Biffa is legally bound to maintain the biodiversity of the land for 30 years.
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How much do BNG units cost?Pricing depends on the size development and number of units required. Biffa’s BNG units offer cost-effective solutions for projects of any scale.
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What is the difference between credits and units?BNG units are offsite from the development within the local area and supplement the onsite biodiversity improvements. Developers can purchase BNG units to meet their BNG planning conditions. Credits are government-issued solutions used when suitable units aren’t available.
