What is a Biodiversity Gain Plan?
A Biodiversity Gain Plan (BGP) explains how your development meets mandatory Biodiversity Net Gain. Our tool assembles your site details, baseline habitats, proposed changes, unit calculations, delivery mechanisms, and monitoring commitments into a clear, planning‑ready document.
Who this Tool is For
Meeting BNG rules on smaller projects
- Even small developments must show a 10% biodiversity net gain under the Environment Act 2021.
- Plans need to evidence how habitats will be maintained or improved, not just replaced.
- Local planning authorities require a formal Biodiversity Gain Plan before granting permission.
- Our tool simplifies this process by generating a clear, compliant BGP for submission.
Understanding the new legal requirements
- The Environment Act 2021 requires a minimum 10% biodiversity net gain for most developments.
- Developers must evidence how habitats will be protected, enhanced, or compensated.
- Local planning authorities will only grant permission once a compliant Biodiversity Gain Plan is submitted.
- Our tool helps you structure, calculate, and generate the Gain Plan for submission.
How the tool makes BNG simple
Everything planning officers expect to see in a clear, consistent format.
Create planning-ready documents in minutes—not days—with our free, intuitive BNG Plan Tool.
No Extra Forms, Just What’s Needed
The tool collects key details about your project, then guides you through filling only the necessary fields in our UI, generating a free, planning-ready Biodiversity Net Gain PDF.
Our BNG plan tool fills out the relevant sections of the BNG gain plan template pdf, based on information you provide.

Interactive Habitat Map
Works with our built-in biodiversity net gain calculator: draw habitats on the map, and the tool automatically calculates results and populates your BNG plan—showing how to achieve BNG on-site or how many off-site credits are needed.

Outputs
- Planning ready Biodiversity Gain Plan (PDF).
- Existing habitats map and post developments map (PDF).
- Completed Biodiversity metric (Excel).

Key Features – BNG Planning anyone can complete
Seamless data flow
- The tool can generate all the documents you need for planning including, habitat maps, BNG gain plan pdf and Biodviersity Metric using the integrated biodiversity metric tool
- Our tool auto completes calculations and sections within the Gain Plan PDF. Including biodiversity gains, habitat percentages and BNG values
Dynamic Info Section
- Instead of a one-size-fits-all PDF, our dynamic UI only shows the sections relevant to your project.
- Our tool auto completes calculations and sections within the Gain Plan PDF.
- Save time—our tool collects your information once and generates all the documents you need.