Implementing GIS Standards for BNG Assessments

Description

The introduction of Biodiversity Net Gain (BNG) legislation in England marks a significant shift in environmental planning. Yet, its success is being compromised by inconsistencies in GIS data submissions and the absence of standardised requirements. This creates challenges for Local Planning Authorities (LPAs), many of which lack the resources and technical capacity to manage spatial data issues. Inaccuracies—such as misaligned red line boundaries, missing slope data, and inconsistent habitat classification—undermine the reliability of biodiversity metric calculations and delay planning decisions.
To address this, we developed the FRIDAS® checklist—a practical framework for improving GIS data quality in BNG submissions. It covers six core areas: Format, Red Line Boundary, Identification, Data and Metadata, Attributes, and Slope. Each element ensures data is accurate, consistent, and aligned with recognised standards such as GEMINI 2.3 and Natural England guidance. By strengthening spatial data governance, FRIDAS® helps ensure that BNG assessments are robust, actionable, and aligned with long-term conservation goals.

About the presenter:
Dr Katie Dawson is the Technical Director of EcoSpatial, a GIS consultancy and Esri partner specialising in environmental data, spatial analysis, and Biodiversity Net Gain (BNG). With over 10 years of experience in geospatial strategy and project delivery, Katie leads the development of digital tools and data standards to improve the quality and interoperability of spatial information in planning and conservation. She is a recognised advocate for practical, accessible mapping solutions and has recently co-founded the Biodiversity Net Gain Spatial Insights Group to support sector-wide collaboration.

Knowledge Level

Suitable for all

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