What is a Biodiversity Net Gain Assessment?
A Biodiversity Net Gain Assessment is used to compare the baseline conditions to post-development plans with the Biodiversity Net Gain which is achieved (if) the post-development plans provide a net improvement to the biodiversity of a site.
The following steps are used to calculate biodiversity net gain or loss
- A field survey is undertaken to collect pre-development habitat data.
- The Post-development habitat data is assessed and defined using the landscaping plans.
- The Pre-development habitat data and post-development habitat data are then converted into ‘biodiversity units’ using a biodiversity metric, with additional biodiversity units which may be added to post-development data using offsite compensation or biodiversity credits.
- The Biodiversity Net Gain or Loss is then calculated using the difference between the pre-development and post-development habitat data.