What is biodiversity net gain?

Biodiversity net gain (BNG) refers to an approach to property development that leaves biodiversity in a measurably better state than it was before any construction work took place.

What are the new BNG legal responsibilities for developers?

The Environment Act 2021 received Royal Assent in November 2021. This Act of Parliament requires all new developments in England to provide a minimum 10% net gain in biodiversity.

The Environment Act will go a long way towards halting and even reversing this tragic decline in biodiversity in England by ensuring that the issue becomes a primary focus for property developers nationwide.

What are 'onsite' and 'offsite' solutions for BNG?

Onsite BNG means meeting the new requirements and introducing the 10% biodiversity net gain at the same site as a development takes place. This is the preferred solution, but it is not always viable without losing developable area, therefore mitigating against this biodiversity loss is possible offsite. Green Agri Land offering provides the full service to ensure that the net gain offsite is achieved. It is important to note that offsite land should be as close to the development site as possible, preferably within the same Local Authority.

Are onsite or offsite habitats better for the environment?

From an ecological perspective, offsite is better. The types of habitats and species generated onsite tend to be very heavily weighted towards species that thrive in proximity to human activity. Working offsite – and preferably linking up several biodiversity sites into larger sites – means a greater diversity of species can thrive.

What is the DEFRA metric?

The biodiversity metric system was developed by The Department for Environment, Food and Rural Affairs (DEFRA) to measure the delivery of mandatory BNG for new developments in England. The metric tool scores different habitat types based on their relative value to wildlife. It also calculates and measures biodiversity losses and gains for developments.

What is a Habitat Unit (HU)?

A Habitat Unit is a parcel of land that is used to create an uplift in biodiversity. A unit is usually created on land of low productivity which can be converted to species-rich grassland, woodland, wetland, mixed scrub or rewilding sites. The numerical value of a Habitat Unit is based on its type, distinctiveness, condition and location.