Arboricultural Impact Assessment in Sussex
Is tree impact uncertainty putting your Sussex layout at risk?
We provide clear, defensible Arboricultural Impact Assessments (AIAs) that explain how retained trees interact with layouts, access and foundations so planners and designers can move forward with confidence.
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 an AIA in Sussex?
If your proposal cannot avoid tree influence, Sussex planners will expect a formal Arboricultural Impact Assessment to validate the application.
If you’re a homeowner, you may need an AIA when an extension, driveway or garage sits close to retained trees or their roots.
If you’re a developer, an AIA is typically required where layouts, access routes, drainage or foundation designs interact with existing trees shown on a BS 5837 tree survey.
In Sussex, Arboricultural Impact Assessments are often required on sites where:
Infill housing in towns and villages introduces development close to mature boundary trees
Expansion at settlement edges requires access routes through retained tree cover
Regeneration land includes historic tree groups influencing layout design
Semi-rural plots introduce foundations within root protection areas
Planners evaluate not only tree presence, but the practicality of sustaining trees post-development.
Our Arboricultural Impact Assessments support projects in the wider Sussex area, where layouts, access and retained trees interact.
Why Planning Authorities Require an AIA in Sussex
Sussex planning authorities request Arboricultural Impact Assessments where development proposals interact directly with retained trees. LPAs use AIAs to test whether layouts, access routes, drainage strategies and foundation designs respond realistically to canopy spread and root protection areas, in line with BS 5837 and the National Planning Policy Framework. Where impacts are unclear or poorly justified, applications are commonly delayed, conditioned or returned for redesign.
Local Case Insight
The Process - Arboricultural Impact Assessment
Our AIAs in Sussex are commercially aware, proportionate and planning-led, designed to support real-world construction sequencing, access logistics and foundation strategy without unnecessary escalation.
Key Deliverables for an AIA in Sussex
We resolve tree-related planning risk across Sussex through:
Defensible impact assessment aligned to BS 5837
Proportionate mitigation and construction guidance
Clear layout compatibility testing for planners
Integrated reporting with TPPs, drainage or ecology where required
Your application is strengthened with evidence that planners trust.
Step 1
Site & Design Review
Assessment of site layout alongside tree survey data.
Step 2
Impact Testing
Root protection areas, canopy spread, access routes and construction zones are fully assessed.
Step 3
Mitigation & Design Alignment
Protection, construction methods and layout refinements defined.
Step 4
Planning-ready Reporting
Integrated with Tree Protection Plans (TPPs), drainage design or ecological surveys.
Next Steps
Ready to confirm whether your Sussex project needs an AIA?
Send us your site details and we’ll give you a clear, proportionate route forward.
FAQ - AIA in Sussex
Why are Arboricultural Impact Assessments commonly required in Sussex?
In Sussex, AIAs are often required where development affects mature trees on village edges, estate land, or settlement boundaries.
- East Sussex County Council – https://www.eastsussex.gov.uk/
- West Sussex County Council – https://www.westsussex.gov.uk/
When does Sussex planning policy require an Arboricultural Impact Assessment?
Sussex planning authorities usually request an AIA where construction could affect tree roots, canopies, or long-term viability.
What developments in Sussex typically need an Arboricultural Impact Assessment?
Residential infill, housing growth, and redevelopment of larger plots commonly trigger AIAs in Sussex.
How does an Arboricultural Impact Assessment support planning in Sussex?
An AIA helps demonstrate that retained trees can coexist with proposed buildings and access routes.
Can an Arboricultural Impact Assessment reduce objections in Sussex?
Yes. Early arboricultural input can resolve conflicts before determination.
Who should prepare an Arboricultural Impact Assessment in Sussex?
AIAs in Sussex should be prepared by qualified arboriculturists experienced in local planning expectations.
