Biodiversity Gain Plan in Sussex
Do you need a Biodiversity Gain Plan in Sussex before you can start work?
Where Biodiversity Net Gain applies, a Biodiversity Gain Plan becomes the legal document that allows work to begin. We put that plan together clearly, correctly and in a format councils approve, so your project moves ahead.
Fast, Clear, Planning-Ready Support
Fast response
Calls answered in 2 rings, emails replied to within the hour.
Free expert advice
Clear guidance before you commit.
Cost-effective
Working in partnership with clients to ensure planning approval first time
Typical 10-day turnaround
Industry Leading Standard
Expert Team
We stay with you from first call through to submission.
Do you need a Biodiversity Gain Plan in Sussex?
In simple terms, you’ll need a Biodiversity Gain Plan for your Sussex site if your planning permission includes a condition linked to Biodiversity Net Gain (BNG). The Biodiversity Gain Plan is the document that shows how the required biodiversity improvement will actually be delivered, how it will be maintained, and who is responsible for it.
Without an approved Biodiversity Gain Plan in place, many developments cannot legally begin, even where planning permission has already been granted.
In Sussex, planning officers regularly seek formal Biodiversity Gain Plan evidence for development affecting:
• Strategic housing growth and mixed-use schemes around Crawley, Horsham, Worthing and coastal growth areas
• Brownfield redevelopment sites within Brighton, Eastbourne and former employment land along the coast
• Infrastructure and transport-related schemes connected to the A27, A23, rail corridors and Gatwick-linked development
• Greenfield boundaries, downland margins and farmland adjacent to the South Downs National Park and rural settlements
Incomplete or incorrectly presented BNG documentation commonly results in validation delays or post-approval conditions.
We provide Biodiversity Gain Plan services across Brighton, Hove, Worthing, Crawley, Horsham, Eastbourne, Hastings, Lewes, Chichester and all surrounding towns and rural areas across Sussex.
Why Planning Authorities in Sussex Request a Biodiversity Gain Plan
Planning Authorities across Sussex require a Biodiversity Gain Plan because Biodiversity Net Gain is now a legal requirement under the Environment Act 2021 and must be formally secured through the planning system. The Plan provides the legally enforceable route for delivering and maintaining biodiversity improvements linked to a specific permission. Without an approved Biodiversity Gain Plan, the BNG condition cannot be lawfully discharged, and development cannot commence on site.
Local Case Insight
How the Biodiversity Gain Plan Process Works
We prepare compliant, planning-ready Biodiversity Gain Plans that meet Sussex’s policy requirements and keep your BNG on track.
Key BGP Deliverables for Sussex Projects
Your Biodiversity Gain Plan is structured to meet Sussex’s planning requirements and typically includes:
Habitat delivery strategy — how and where biodiversity uplift will be achieved
Mapped habitat parcels — legally reliable plans linking habitats to the approved metric
Optional integration with a Habitat Management & Monitoring Plan (HMMP) where 30-year management is required
Submission-ready planning document — formatted for Local Planning Authority approval
This ensures your BNG condition in Sussex can be discharged cleanly and lawfully.
Step 1
Initial review
We assess your existing BNG assessment, site layout and planning condition.
Step 2
Plan preparation
Habitat delivery proposals, mapping and management requirements are drafted.
Step 3
Coordination stage
The plan is aligned with your build programme and any wider ecological or planning documents.
Step 4
Submission and support
We respond to any LPA queries or amendments required.
Next Steps
Ready to secure approval and start on site? We’ll confirm what your Sussex site needs and help you move forward without unnecessary delay.
FAQ - BGP in Sussex
Why are Biodiversity Gain Plans commonly required in Sussex?
In Sussex, BNG conditions are frequently applied due to development pressure near the South Downs, coastal habitats, and greenfield settlement edges.
West Sussex County Council – https://www.westsussex.gov.uk/
East Sussex County Council – https://www.eastsussex.gov.uk/
Mid Sussex District Council – https://www.midsussex.gov.uk/
What information must a Sussex Biodiversity Gain Plan include?
Plans must detail habitat baselines, enhancement proposals, delivery phasing, and management measures that reflect local ecological sensitivity.
Are Biodiversity Gain Plans reviewed before works start in Sussex?
Yes. Most Sussex authorities require the condition to be discharged prior to commencement.
Do urban sites in Sussex still need Biodiversity Gain Plans?
Urban and brownfield sites can still trigger BNG requirements, especially where grassland or mosaic habitats are present.
Can a Biodiversity Gain Plan avoid further ecological surveys in Sussex?
A well-prepared plan can often resolve habitat matters without additional seasonal survey requests.
Who checks Biodiversity Gain Plans in Sussex?
Plans are reviewed by planning officers, often with input from ecological advisers.
