Eastbourne BNG advice
Biodiversity Net Gain in Eastbourne
Plan your Eastbourne development around local habitats, planning requirements and practical biodiversity gains.
ACP Consultants can help with habitat surveys, biodiversity metric calculations and a practical BNG delivery plan for your Eastbourne site.
Local requirements
Eastbourne BNG requirements at a glance
| Check | Practical answer |
|---|---|
| Planning authority | Eastbourne Borough Council — verify the actual parcel, any special planning jurisdiction and site type |
| Adopted development plan | Eastbourne Core Strategy adopted February 2013, retained 2003 Borough Plan policies, Town Centre Plan 2013 and Employment Land Plan 2016 |
| Specific biodiversity policies | Saved Borough Plan NE4 – Sites of Nature Conservation Importance, NE6 – Ancient Woodland, NE7 – Habitats and Species, NE11 – Biodiversity and Geological Interest |
| Emerging plan status | The new Eastbourne Local Plan 2025–2042 reached Regulation 19 consultation on 2 October 2026. Due to an email-delivery issue, the consultation deadline was extended to 1 December 2026. It is not adopted. The consultation applies to borough land outside the South Downs National Park. |
| LNRS | East Sussex and Brighton & Hove Local Nature Recovery Strategy, Published 24 June 2026; East Sussex County Council |
| Statutory BNG | Normally at least 10% for eligible applications; exemption and application date checks are essential |
| Protected sites | Independent Habitats Regulations or protected-species evidence where a credible impact pathway exists |
Planning authority and policy
Local planning requirements for Eastbourne
Confirm the planning authority
Eastbourne Borough Council handles applications outside the South Downs National Park. For mapped National Park land, check the Park Authority’s role and any delegated arrangements. East Sussex County Council handles county matters such as minerals and waste.
See BNG in East Sussex and the South East regional guide.
Use the adopted development plan
Use the 2013 Core Strategy, relevant saved 2003 Borough Plan policies, 2013 Town Centre Plan and 2016 Employment Land Plan. Saved policies NE4, NE6, NE7 and NE11 address nature conservation, ancient woodland, habitats and biodiversity.
The proposed Local Plan 2025–2042 is at Regulation 19 stage, with representations open until 1 December 2026. It covers borough land outside the National Park and is not yet adopted.
Establish the gain target
Eligible development normally needs at least 10% statutory gain. Establish the applicable target using current national policy, any relevant site-allocation policy and existing permission.
Plan habitat retention, suitable enhancement and long-term management alongside the site layout. Check the national biodiversity planning policies when establishing obligations.
Check dates and exemptions
For applications from 6 August 2026, sites up to 0.2 hectares may qualify for an exemption if no onsite priority habitat is adversely affected.
Householder, de minimis, temporary-development and transitional rules have their own conditions. Record the application date, site area and supporting habitat evidence.
Use the BNG exemptions guide to identify the relevant route.
Nature recovery and local geography
Local habitats and nature recovery in Eastbourne
Use the local nature recovery map
The published East Sussex and Brighton & Hove Local Nature Recovery Strategy provides priorities and mapped opportunities for habitat recovery. It was published in June 2026.
For Eastbourne, consider Beachy Head downland edges, Pevensey Levels drainage connections, Sovereign Harbour and urban green spaces. Match the actual site location and proposed habitat to a relevant recovery measure.
Local habitats to consider in Eastbourne
Use the landscape context to scope the survey, then record the habitats actually present within the site boundary.
| Local setting | Potential habitat or evidence issue |
|---|---|
| South Downs/Beachy Head margins | Chalk grassland, scrub, downland edges and priority species where site boundaries intersect relevant habitats. |
| Pevensey Levels surroundings | Wet grassland, drainage networks and internationally important wetland ecosystems in affected catchments. |
| Sovereign Harbour and seafront | Coastal development may involve intertidal, flood and coastal biodiversity considerations. |
| Eastbourne parks and brownfield sites | Mature urban trees, planted spaces, railway corridors and small ponds can hold habitat value. |
Plan protected-site and species evidence
Where a proposal could affect Pevensey Levels SAC/Ramsar, establish the actual hydrological or other impact pathway. Protected wetland assessment and any required mitigation should be planned alongside BNG.
Beachy Head and downland sites can raise grassland, species and landscape considerations. Around Sovereign Harbour and the seafront, consider coastal ecology, drainage and flood-related constraints appropriate to the proposed works.
Planning and delivery
Preparing evidence and delivering biodiversity gain
Prepare the habitat baseline and metric
Start with the site’s habitat baseline and condition. Use the appropriate statutory metric; the Small Sites Metric is suitable only where its eligibility conditions are met.
In Eastbourne, survey Beachy Head downland edges, Pevensey Levels drainage connections, Sovereign Harbour and urban green spaces where these occur within or affect the proposal. Record the actual habitat condition and relevant watercourse evidence.
See BNG assessments and habitat surveys, habitat condition assessment and Small Sites Metric assessments.
Prepare the planning submission
Confirm the planning authority, application date, relevant policies and whether statutory BNG applies. Then agree a proportionate submission scope with the council.
- An applicability or exemption explanation supported by site evidence.
- The red-line boundary, baseline habitat plan and metric where required.
- Proposed layout, retained habitats and feasible habitat gains.
- Any protected-species, watercourse, drainage or Habitats Regulations evidence.
Test the layout against local habitat constraints
Retain sensitive habitats and useful connections where possible. Use these questions to compare realistic layout and habitat options.
| Local setting to test | Useful design and survey question |
|---|---|
| South Downs/Beachy Head margins | Can the proposal avoid impacts? Chalk grassland, scrub, downland edges and priority species where site boundaries intersect relevant habitats. |
| Pevensey Levels surroundings | What would retaining or improving connectivity involve? Wet grassland, drainage networks and internationally important wetland ecosystems in affected catchments. |
| Sovereign Harbour and seafront | Do the existing habitats or species interests restrict the proposed gain type? Coastal development may involve intertidal, flood and coastal biodiversity considerations. |
| Eastbourne parks and brownfield sites | Can the layout integrate useful green infrastructure? Mature urban trees, planted spaces, railway corridors and small ponds can hold habitat value. |
Choose habitats suited to the site and its long-term management. Match nature recovery measures to the published LNRS map, then calculate all relevant unit categories.
Development and regeneration context
Eastbourne’s emerging plan addresses the future development of the borough, including town-centre and harbour contexts. While it progresses through consultation and examination, establish the application’s policy position from adopted documents and the relevant site allocation.
A practical Eastbourne planning example
Illustration: a residential scheme east of town affects grassland and a drainage ditch. Confirm the planning boundary, map habitats and investigate water connections. Compare realistic habitat options, calculate the gain and assess any potential Pevensey Levels effects through the separate protected-site process.
Plan off-site delivery and long-term management
Calculate the genuine shortfall before committing to off-site units. Apply the relevant gain hierarchy, habitat trading rules and location requirements to the proposed delivery route.
Use the East Sussex and Brighton & Hove Local Nature Recovery Strategy to explore habitat opportunities. Confirm registration, suitable units and current availability directly with the proposed supplier.
Read about off-site biodiversity units, Biodiversity Gain Plans and Habitat Management and Monitoring Plans.
Council and delivery costs
What should your Eastbourne BNG budget cover?
Budget for habitat surveys, metric calculations, planning reports and any gain-plan or management work. The scope depends on the site, habitat types and planning stage.
Allow for any watercourse, coastal or protected-wetland assessment needed by the proposal. A harbour site and a downland-edge site can require different survey seasons and specialist inputs.
Planning evidence
Eastbourne BNG preparation checklist
Free resource: Use the local BNG planning evidence route worksheet. It provides a light, accessible reference to official documents and the difference between BNG and separate ecological duties.
Planning evidence worksheet
Find your Eastbourne planning and evidence route
Use these questions to identify the planning documents, habitat evidence and delivery information relevant to your site.
Open the question relevant to your project
Which planning authority and adopted plan?
Adopted framework: Eastbourne Core Strategy adopted February 2013, retained 2003 Borough Plan policies, Town Centre Plan 2013 and Employment Land Plan 2016. Policies: Saved Borough Plan NE4 – Sites of Nature Conservation Importance, NE6 – Ancient Woodland, NE7 – Habitats and Species, NE11 – Biodiversity and Geological Interest.
Check the red-line boundary, current local list and official policies map. The county parent is Biodiversity Net Gain in East Sussex.
Is a new Local Plan or higher BNG target already operative?
The new Eastbourne Local Plan 2025–2042 reached Regulation 19 consultation on 2 October 2026. Due to an email-delivery issue, the consultation deadline was extended to 1 December 2026. It is not adopted. The consultation applies to borough land outside the South Downs National Park.
The current national 10% requirement applies to eligible development, subject to exemptions. An emerging percentage must not be presented as an adopted obligation.
Which published LNRS and map apply?
East Sussex and Brighton & Hove Local Nature Recovery Strategy — Published 24 June 2026. Responsible authority: East Sussex County Council.
Match the site to an actual mapped measure and suitable habitat. Record the mapped recovery measure and survey evidence supporting the metric entry.
Could my application qualify for a 2026 BNG exemption?
For applications from 6 August 2026, a red-line site up to 0.2 hectares may qualify if no onsite priority habitat is adversely affected. Other householder, de minimis, temporary and transitional categories have distinct conditions.
What separate habitat or designated-site issue matters here?
The Pevensey Levels SAC/Ramsar and coastal downland interest can introduce separate HRA or species questions where a real pathway exists. The South Downs National Park is also a separate planning jurisdiction for mapped land. Do not assume every Eastbourne application lies within a Ramsar impact zone.
Coordinate any Habitats Regulations, protected-species and water-quality evidence with the BNG work.
When do I need a gain plan and habitat management?
Planning-stage documents depend on the current council validation list and proposal type. The final statutory gain plan is normally approved after permission and before commencement. Significant habitat gains may need at least 30 years of secured management and monitoring.
Details to gather before an enquiry
Sources reviewed: 10 November 2026
Project support
How ACP can help with your Eastbourne project
ACP can help scope the habitat surveys, metric calculations and planning reports needed for your Eastbourne proposal. Early advice is most useful while the layout can still change.
We can consider Beachy Head downland edges, Pevensey Levels drainage connections, Sovereign Harbour and urban green spaces alongside the site’s planning route and proposed works.
Local planning questions
Frequently asked questions about BNG in Eastbourne
For a site-specific question, discuss your project with ACP.
Is Eastbourne's 2026 Local Plan already adopted?
No. It is at Regulation 19 proposed submission stage. The representation deadline was extended to 1 December 2026. The adopted 2013/2003 framework still matters.
Which authority decides development on Beachy Head land?
Some surrounding downland lies inside South Downs National Park. Check the mapped boundary and any delegated decision arrangements; the Park Authority can be the LPA.
Can Pevensey Levels affect BNG planning?
Protected wetland impacts can require independent assessment where a pathway exists. A statutory BNG metric gain does not replace a Habitats Regulations finding.
Which LNRS includes Eastbourne?
The East Sussex and Brighton & Hove LNRS, published in June 2026 and led by East Sussex County Council.
Which habitat surveys might a site in Eastbourne need?
Scope the assessment around the habitats and proposed effects. In Eastbourne, relevant settings include Beachy Head downland edges, Pevensey Levels drainage connections, Sovereign Harbour and urban green spaces. The red-line plan, habitat condition and any water or species pathways determine the survey work.
How should I use the local nature recovery map?
Use the published map to match the site and proposed habitat to a recovery measure. Survey evidence and feasible management then support the design and metric calculation. Confirm the planning authority separately, including any National Park jurisdiction.
How do BNG exemptions work for a small Eastbourne development?
Since 6 August 2026, a red-line site of 0.2 hectares or less may qualify for exemption if the statutory conditions are satisfied, including no adverse effect on onsite priority habitat. Other ecological duties may remain.
How can habitat retention help with BNG in Eastbourne?
Retain valuable habitats and connections where feasible, and test how the layout affects them. If a genuine shortfall remains, use the applicable gain hierarchy and habitat trading rules to select a suitable delivery route.
When is the final gain plan needed for Eastbourne Borough Council?
For eligible ordinary applications the final statutory Biodiversity Gain Plan normally needs approval after planning permission and before commencement. Check what the council asks for during validation and whether a management plan is needed.
Talk to ACP / Site enquiries
What does your site need next?
Tell us where the site is, what you plan to build and how far the application has progressed. We’ll use that context to discuss the surveys, calculations or plans your project needs.
What to have to handA red-line plan, an existing ecology report or a request from the council can help us scope the work. Start with whatever you already have.
Request a site-specific quotation
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Eastbourne BNG
Sources and references
Reviewed 10 November 2026.
Official planning and nature recovery sources
- Current GOV.UK exemption guidance
- East Sussex and Brighton LNRS
- Appropriate assessment guidance
- Eastbourne 2013 and saved 2003 adopted plans
- Eastbourne saved policies map
- 2026 Regulation 19 consultation
- East Sussex LNRS responsible authority
- GOV.UK's BNG guidance
- statutory biodiversity metric downloads
- National Planning Policy Framework: biodiversity policies N1 and N2