Naturefy: Free UK Biodiversity Net Gain Tools

Draw your redline, map existing and proposed habitats, auto-complete the BNG metric, detect priority habitats, and download planning-ready biodiversity reports — for landowners or developers.

View BNG Calculator

Who Naturefy is for

Small site developers

Automatically complete the Small Site Metric by just drawing habitats. Test “what if” scenarios to hit 10% BNG without spreadsheet work.

Use the calculator →

Landowners & habitat providers

See which habitats on your land are low value, draw improvements, and estimate how many biodiversity units you could generate to sell.

Model habitat gains →

Large/complex developments

Map baselines and proposed habitats, flag trading-rule issues, and generate a planning-ready Biodiversity Gain Plan to share with your LPA.

Generate a BNG plan →

Purchasing Credits

Use our Interactive Map to find the biodiversity credits you need. All credit providers are verified and we handle the handover of credits for you so your development can get underway hassle free.

Find BNG Providers →

What you can do with Naturefy

From redline sketch to planning-ready BNG paperwork — made simple.

Manage BNG Projects

Keep your calculator runs, gain plans, and survey outputs in one account.

Automated Biodiversity Survey
Identify priority habitats within your site

Draft habitat scenarios

Test alternative habitat creations and enhancements to see which maximize BNG and credit creation.

Planning-ready reports

Download the completed biodiversity metric (Excel) and BNG plan (PDF) directly from the tool.

Built-in checks

Flag habitat trading-rule issues and priority habitats pulled from the survey tool.

Purchase Biodiversity Credits

Find the Biodiversity Units for sale in your area.

Free BNG tools — built for UK planning

Everything is designed to help you meet — and show — the 10% Biodiversity Net Gain requirement with minimal effort.

Biodiversity Net Gain Calculator

Trace habitats on the interactive map, tell the system which habitats you're creating or enhancing, and Naturefy auto-completes the biodiversity metric for you — small site or large site.

  • Auto-calculates biodiversity units
  • Experiment with habitat mixes to reach 10%
  • Create biodiversity credits for landowners
Open BNG Calculator →

Biodiversity Gain Plan Tool

Pulls in your habitats, unit calculations and trading-rule checks from the calculator to generate a planning-ready BNG Gain Plan PDF — ready for LPAs.

  • Auto-completes BNG plan template
  • Exports PDF for submission
  • Creates planning ready documents
Create a Gain Plan →

Biodiversity Survey Tool

Instantly checks priority habitats and designated sites on or near your redline boundary, and feeds that into your BNG documents.

  • Scans Natural England datasets
  • Gives source IDs for planning
  • Exports survey outputs
Run a survey →

Built for real UK planning workflows

Naturefy combines the three BNG tasks — metric, gain plan, survey — into one simple web experience. No GIS setup, no spreadsheet wrangling, no waiting for consultants to tell you whether you've reached 10%.

Use it to submit to your Local Planning Authority, to understand if you can deliver BNG on-site, or to explore off-site unit options.

BNG – common questions

What is Biodiversity Net Gain (BNG)?
Biodiversity Net Gain (BNG) is a UK requirement that most developments deliver at least a 10% measurable improvement in biodiversity compared to the pre-development state. Naturefy's tools help you calculate and plan your BNG strategy in line with the Environment Act 2021 and Defra's biodiversity metric.
Can I use Naturefy to create Biodiversity Credits?
Yes. Naturefy makes it easy for Landowners to convert their land into Biodiversity Credits. Using our tool, landowners and farmers can experiment to see how many credits their land can create and then we'll provide you with the necessary documents for free, then walk you through the steps to create these credits.
Can I do the Small Site Metric here?
Yes. If your development is under 1 hectare or 1–9 dwellings and has no priority habitats, you can map your site and Naturefy will auto-populate the Small Site Metric for you — and you can download it for planning.
How do I create the Biodiversity Gain Plan?
After you map habitats and run the calculator, open the Biodiversity Gain Plan Tool. It will pull in your habitats, unit calculations and survey results, then generate a compliant, planning-ready PDF.
Can I check priority habitats and designated sites automatically?
Yes. Use the Biodiversity Survey Tool to scan your redline and nearby area for priority habitats and designated sites. Naturefy will show sources and IDs you can reference in your planning documents.
Is Naturefy free?
Yes. The online tools — calculator, gain plan, and survey — are free to use.

Ready to Start Your BNG Journey?

Need help with a specific site?

We're here to help you complete your BNG journey from start to finish.
Email us at: admin@naturefy.co.uk

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