Arboricultural Survey (Tree Survey & AIA)
What It Is
An Arboricultural Survey — including a Tree Survey and Arboricultural Impact Assessment (AIA) — is a statutory planning requirement for developments near existing trees. It ensures compliance with BS 5837:2012 and evaluates the condition, value, and constraints posed by trees on or around the site. Local authorities use these surveys to decide whether trees should be protected, retained, or removed.
Why It Matters — Risks Without It
❌ Planning refusal or lengthy delays if trees aren’t properly assessed
⚠️ Breach of Tree Preservation Orders (TPOs) or conservation area regulations
📣 Enforcement action or fines for unlawful tree removal
🧾 Costly redesigns or site restrictions discovered too late
What’s Measured
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Tree species, height, age, and physiological condition
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Root Protection Areas (RPAs) and canopy spread
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Tree quality grading under BS 5837
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Potential impacts of proposed works on trees
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Constraints for site layout and design
How It Works
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Tree Survey – On-site recording of trees’ dimensions, health, and constraints
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Arboricultural Impact Assessment (AIA) – Analysis of how the development will affect trees
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Tree Constraints Plan – CAD-compatible plans showing RPAs and required buffers
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Arboricultural Method Statement (AMS) – Guidance for protecting trees during construction if needed
Who It’s For
🏗️ Housing developers working near existing trees
🏛️ Commercial and infrastructure projects within TPO or conservation areas
🏢 Planning consultants and architects preparing site layouts
🌳 Landowners seeking consent for tree removal or development works
What You Get
📄 A BS 5837-compliant Arboricultural Report for planning submission
📊 Tree constraints and impact analysis to inform design
🧠 Expert advice on tree retention, removal, and mitigation measures
✅ Confidence that your scheme meets planning and biodiversity requirements
Plan With Nature in Mind
By carrying out a Tree Survey and AIA early, you streamline planning approvals, avoid legal risks, and show a commitment to protecting trees and biodiversity while delivering your development.
