Report guide
Tree Protection Management Plan
A Tree Protection Management Plan (TPMP) sets out the practical, on-site measures needed to protect retained trees during demolition and construction — turning the Tree Protection Zone (TPZ) into a physically fenced, enforceable site condition.
What a TPMP typically includes
- Tree protection fencing locations marking each tree's TPZ — under AS 4970:2025 the TPZ is the area actually fenced off, set by the project arborist from the Notional Root Zone (NRZ).
- Ground protection specifications (e.g. plywood over mulch, or engineered decking) where access within the TPZ is unavoidable.
- Rules for storage, machinery access, and prohibited activities (fill, trenching, chemical storage) within the TPZ.
- A monitoring and sign-off schedule, often with site inductions and a nominated project arborist.
When you need one
A TPMP is usually a condition of development consent once an Arboricultural Impact Assessment has confirmed which trees are being retained. It's handed to the builder before site establishment and referenced throughout construction.
Why it matters
Even a well-designed AIA can be undermined on site if protection fencing is moved, machinery compacts root zones, or materials are stockpiled over roots. A clear TPMP gives builders unambiguous, enforceable instructions, and gives councils a compliance document to check against during inspections.
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