Tree Preservation Orders in Sydney: What You Need to Know

A Tree Preservation Order is a council-level legal protection for trees on private and public land. There's no single Sydney TPO — every council writes its own, and they vary widely in scope and enforcement.

What a TPO actually does

It makes it an offence to remove, damage, or significantly prune a protected tree without council consent. "Damage" includes ringbarking, root cutting, deliberate poisoning, and even excessive pruning that compromises tree health.

What's typically protected

• Native species above a size threshold (usually 30cm trunk diameter at breast height)
• Heritage trees on a council Significant Tree Register
• Trees within heritage conservation areas
• Trees that contribute to a streetscape or public visual amenity

What's typically exempt

• Dead trees (you may need an arborist report to confirm)
• Non-native pest species — though even these often need a permit, just one that's quicker to get
• Light pruning that doesn't significantly affect canopy form
• Trees within bushfire asset protection zones (the 10/50 rule)

The Significant Tree Register

Several Sydney councils maintain a separate register of "significant" trees — trees of historical, botanical, cultural or visual importance. Removal of a registered tree requires development consent, not just a tree application. Council can refuse, and refusal is harder to appeal.

Ku-ring-gai, Woollahra, Randwick, Mosman and Waverley all maintain registers.

What about pruning?

Most Tree Preservation Orders allow light pruning (typically up to 10% of the canopy) without consent. Heavier pruning — crown reduction, structural pruning, removing major limbs — usually requires either consent or work performed by a certified arborist to the Australian pruning standard.

How to find your council's rules

Search "[council name] tree preservation order" or "[council name] development control plan tree". The DCP almost always includes the tree provisions.

Working with a TPO, not against it

For most owners, the TPO is a permit process, not a blocker. Properly managed trees almost always get approval for legitimate work — pruning, removal of declining specimens, structural work for safety. Long-term management plans help by documenting tree condition over time, which makes future applications faster and easier.