Biodiversity Net Gain (BNG) Surveys & Assessment
Biodiversity Net Gain (BNG) is now a mandatory requirement for most development in England. The policy requires development to deliver a measurable increase in biodiversity, typically achieving at least a 10% net gain compared with the site's pre-existing ecological value.
Biodiversity Net Gain is assessed using the Defra biodiversity metric, which calculates biodiversity units based on habitat type, condition, distinctiveness, and extent.
Serotina Ecology provides specialist ecological input to support Biodiversity Net Gain throughout the planning process, from baseline habitat assessment through to habitat design and long-term management planning.
Surveys typically include
Baseline habitat surveys including UKHab classification and biodiversity metric condition assessment
Calculation of biodiversity units using the Defra biodiversity metric
Advice on delivering both onsite and offsite biodiversity
Preparation of supporting documentation for planning applications
Typical uses
Planning applications requiring Biodiversity Net Gain
Ecological input to Habitat Management and Monitoring Plans
Development of onsite or offsite biodiversity units