Arboricultural Impact Assessment (AIA) in Hampshire
Is tree impact uncertainty putting your Hampshire layout at risk?
We provide clear, defensible Arboricultural Impact Assessments 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 Hampshire?
If your proposal cannot avoid tree influence, Hampshire 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.
Across Hampshire, Arboricultural Impact Assessments are often required where:
Residential infill introduces development close to mature trees
Edge-of-settlement schemes require access routes through retained tree belts
Regeneration land includes historic trees influencing design
Semi-rural plots introduce services within root protection zones
Planners examine whether proposed layouts genuinely accommodate tree retention.
Our Arboricultural Impact Assessments support projects in Southampton, Portsmouth, Winchester, Eastleigh, Fareham and the wider Hampshire area, where layouts, access and retained trees interact.
Why Planning Authorities Require an AIA in Hampshire
Hampshire 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 Hampshire 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 Hampshire
We resolve tree-related planning risk across Hampshire 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 Hampshire project needs an AIA?
Send us your site details and we’ll give you a clear, proportionate route forward.
FAQ - AIA in Hampshire
Why are Arboricultural Impact Assessments commonly required for development in Hampshire?
In Hampshire, AIAs are often required where development affects mature trees on large residential plots or settlement edges.
Hampshire County Council – https://www.hants.gov.uk/
When do Hampshire planning authorities expect an Arboricultural Impact Assessment?
Hampshire councils typically expect an AIA where construction could impact root protection areas or canopy spread.
What developments in Hampshire usually require an Arboricultural Impact Assessment?
Replacement dwellings, residential extensions, and redevelopment of larger plots frequently require AIAs in Hampshire.
How does an Arboricultural Impact Assessment support planning approval in Hampshire?
An AIA demonstrates that tree retention has been integrated into layout and construction methodology.
Can an Arboricultural Impact Assessment help avoid planning delays in Hampshire?
Yes. Clear arboricultural evidence can reduce requests for amendments or conditions.
Who should prepare an Arboricultural Impact Assessment in Hampshire?
AIAs in Hampshire should be prepared by qualified arboriculturists familiar with local planning expectations.
