Tree Protection Policy

Trees are an important part of what makes our neighbourhoods liveable. Large, established trees provide shade, keep our suburbs cooler, support wildlife and add to the character of our streets. 

The City’s Tree Protection Policy sets out requirements for the removal of certain regulated trees on private property. 

In some circumstances, Development Approval is required before a tree on private property can be removed or significantly damaged. Routine garden maintenance and general pruning can still continue as normal in most cases.

Street trees are protected by local laws, with local government approval required for their removal.  The City will only remove trees on reserves where they are unsafe or where unavoidable as part of new works.

What is a regulated tree?

A regulated tree is:
  • A tree that is 8 metres or taller 
  • A tree listed on the City’s Significant Tree Register 
  • A tree required to be retained or planted through subdivision or development approval conditions 
The policy generally excludes:
  • Palms 
  • Certain listed pest species 
  • Exempt vegetation types identified in the policy 

Find out if a tree is regulated

Residents can use the City’s online mapping to identify trees that are 8 metres or taller.

Search tree mapping

When is Development Approval required?

Development Approval may be required before undertaking ‘tree damaging activity’ to a regulated tree.

This can include:
  • Removing a regulated tree 
  • Topping or lopping significant branches 
  • Works that may cause the decline or death of the tree 
  • Damaging more than 10 per cent of the root area 
  • Paving, excavation, soil level changes or compaction within the tree’s drip line that may affect tree health. 
There are also requirements for Development Approval prior to clearing native vegetation in the rural zones.

If you are unsure whether approval is required, please contact the City before starting works.

What activities are exempt?

Approval is not generally required for:
  • Routine pruning and maintenance 
  • Removal of dead branches 
  • Works required to manage an immediate safety risk 
  • Works required under an approved Bushfire Management Plan 
  • Compliance with the City’s Fire Control Order or the Bush Fire Risk Treatment Standards
  • Other exemptions identified in the policy. 
Exemptions may still require supporting evidence or documentation in some circumstances.

How to apply

Applications can be submitted online through the City’s Development Application portal.

Applications should include:
  • Details of the proposed works 
  • Photographs of the tree 
  • Site plans where relevant 
  • Supporting reports or advice (such as arborist or engineering reports) if applicable (please check if required to justify proposed works).
Applications will be assessed on a case-by-case basis.

While the City aims to retain Regulated Trees wherever practical, applications will be assessed pragmatically, taking into account safety, property impacts, development rights and site constraints.

Apply now

Native vegetation removal in rural areas

These new requirements for regulated trees operate alongside existing controls in the ‘Rural’ and ‘Resource’ zones whereby removal of native vegetation requires Development Approval (including within Building Envelopes unless complying with an approval issued by the City).

Clearing to comply with the City’s Fire Control Order, an adopted Bushfire Management Plan or the Bush Fire Risk Treatment Standards does not require prior written approval from the City.

Vegetation clearing is also regulated under State and federal requirements:
  • Environmental Protection Act 1986 (administered by the Department of Water and Environmental Regulation)
  • Environmental Protection and Biodiversity Conservation Act 1999 (administered by the Department of Climate Change, Energy, Environment and Water).
Landowners must ensure all necessary approvals, permits, or exemptions are obtained before undertaking clearing activities.

If you need assistance identifying trees or native vegetation on your property, please contact the City’s Environment team.

FAQ 

Do I need approval to prune my tree?
Routine pruning and general garden maintenance can usually continue without approval, provided the works are not likely to significantly damage or decline the tree.

Major pruning, topping or lopping of a regulated tree may require Development Approval.
 
How do I know if my tree is 8 metres tall?
The City provides online mapping to help identify trees that are 8 metres or taller.

If you are unsure, you can also contact the City for guidance.
 
What is a tree’s drip line?
The drip line is the area beneath the outer edge of a tree’s canopy. Damage within this area can affect the tree’s roots and long-term health.
What if my tree is dangerous?
Exemptions apply for emergency works to imminently hazardous or dangerous trees.

If there is an immediate safety risk or emergency situation, please contact the City as soon as possible.

Where development approval is being on the basis of safety issues supporting evidence, such as an arborist report, may be required.
 
Can I remove a tree that is damaging my property?
Applications can be made where there are structural, safety or infrastructure concerns.

Supporting information, such as engineering or arborist advice, may be required to demonstrate the impact.
 
Are palms regulated trees?
No. Palms are excluded from the policy.
Do I still need approval to remove native vegetation under 8m in the ‘Rural’ and ‘Resource’ zones?
Yes. There is also a requirement for Development Approval to remove native vegetation in rural areas (unless in accordance with the City’s Fire Control Order, an adopted Bushfire Management Plan or the Bush Fire Risk Treatment Standards), in addition to the new requirements for Regulated Trees. If you need assistance identifying trees or native vegetation on your property, please contact the City’s Environment team.
 
What happens if works are carried out without approval?
Undertaking regulated works without required approval may be an offence under the Planning and Development Act 2005.

Penalties may apply.
 
Why has the City introduced these requirements?
The policy supports the City’s Urban Forest Plan 2018–2028 and aims to help protect the environment and tree canopy across Cockburn.
Retaining larger trees helps:
  • reduce urban heat
  • improve neighbourhood character and amenity
  • support biodiversity
  • increase shade and liveability.
What are the requirements for trees in parks and verges?
Street trees are protected by local laws, with local government approval required for their removal. The City will only remove trees on reserves where they are unsafe or where unavoidable as part of new works.
 

Contact

Address

City of Cockburn
Whadjuk Boodjar
9 Coleville Crescent,
Spearwood 6163

PO Box 1215, Bibra Lake DC,
Western Australia, 6965

Office opening hours:
8.30am to 4.30pm
Monday to Friday (excluding public holidays)

Language Support

Fire Danger Rating

Social Media

Cockburn Nyungar moort Beeliar boodja-k kaadadjiny. Koora, yeyi, benang baalap nidja boodja-k kaaradjiny.
Ngalak kaditj boodjar kep wer kaadidjiny kalyakool yoodaniny, wer koora wer yeyi ngalak Birdiya koota-djinanginy.

The City of Cockburn acknowledges the Nyungar people of Beeliar Boodjar. Long ago, now and in the future they care for Country.
We acknowledge a continuing connection to Land, Waters and Culture and pay our respects to Elders, past and present.