How Tree Reports Influence Melbourne Council Approvals: What Every Developer Should Know

Autumn in Melbourne often brings an increase in construction activity, yet many projects stall at the council approval stage due to tree-related concerns. Understanding how a tree report shapes the outcome is essential for developers and builders working across Victoria. A tree report is a detailed assessment prepared by a qualified arborist to help councils determine whether development proposals comply with local tree protection requirements.

For many developers, the difference between smooth permit approval and lengthy delays often comes down to the quality of the arborist report submitted. At Arborplan Arboricultural Consultants, we see this first-hand. Clear, compliant documentation can prevent months of unnecessary back-and-forth with council officers.

Why do Melbourne councils require tree reports?

Councils across Melbourne and greater Victoria enforce strict controls on tree removal and development near significant vegetation. These controls protect local biodiversity, maintain neighbourhood character, and reduce urban heat. When a planning permit is lodged, whether for a subdivision, new build, or extension, a professional arborist report is almost always required when trees are present on or near the site.

A tree report provides an inventory of relevant trees, both on the subject property and adjacent public land, along with assessments of each tree’s health, structure, species, and retention value. This information allows council planners to decide which trees must be retained, which may be removed under permit conditions, and what protection measures are required during construction.

What’s included in an arborist report for Melbourne development?

A comprehensive tree report for council submission will typically include:

• Mapping of all trees within the influence of proposed works, including neighbouring or street trees
• Botanical identification and measurements, such as trunk diameter, canopy spread, and height
• Assessment of each tree’s health, structure, useful life expectancy, and retention category
• Calculation of Tree Protection Zones for all relevant trees
• Analysis of how proposed works may affect root systems or canopy structure
• Recommendations for retention, removal, or remedial works
• Prescribed protection measures to safeguard retained trees, including fencing, root investigations, and pruning guidance

All reports should align with Australian Standards AS 4970-2009 Protection of Trees on Development Sites.

You can read more about our arborist reports and tree assessments here: https://www.arborplans.com.au/arborist-reports

How does a tree report affect council approval?

The presence or absence of protected trees can significantly influence a planning application. Councils use the arborist’s findings to determine:

• Which trees must be retained
• Whether removal is justified
• What construction methods or design adjustments are required to protect roots and canopy

Our reports are prepared to address council expectations upfront, reducing the risk of further information requests that commonly delay applications.

What questions do councils ask about submitted arborist reports?

Councils frequently ask whether the report clearly identifies all affected trees and demonstrates how their protection will be managed during works. Reports must also explain any tree removal recommendations with supporting evidence, such as structural defects or advanced decline, rather than simply listing them without justification.

Planners often examine whether:

• Tree Protection Zones align with the relevant standards
• Any encroachment into TPZs has been suitably justified with mitigation measures, such as non-destructive root investigations
• Proposed tree protection fencing can be installed effectively on constrained sites
• Responsibilities for monitoring compliance during construction have been clearly outlined

Addressing these points thoroughly at the start helps avoid delays after lodgement.

How long does it take to prepare a report?

Timeframes vary depending on the number of trees onsite, site access, and proximity to boundaries. Sites near major roads or public land may require additional coordination with council officers. Seasonal factors also play a role, as winter assessments can take longer due to reduced visibility on deciduous species.

Once onsite work is complete, drafting a compliant report generally takes several working days. Additional investigations, such as non-destructive root investigations required by council policy, may extend the timeframe. We encourage developers to factor arboricultural assessment into early project planning.

How do developers use arborist reports strategically?

Many developers engage us early in the design process, allowing us to assess tree constraints before architectural plans progress too far. This helps avoid designs that rely on removing trees unlikely to receive approval. Early advice also supports practical solutions, such as adjusting building footprints or retaining high-value trees as part of the landscape design.

Builders also benefit from clear instructions about machinery access, fencing requirements, and areas where excavation or trenching may affect significant roots. This practical guidance minimises onsite surprises and reduces compliance risks.

What happens if the process is rushed or overlooked?

Submitting generic or incomplete documentation rarely leads to a positive outcome. Councils regularly reject applications that lack credible arborist input or impose strict conditions that compromise project viability. Common issues include overlooking street trees, underestimating root spread beneath driveways or paved areas, and failing to consider cumulative impacts from staged developments.

In some cases, non-compliance with approved tree management plans can result in enforcement action, including fines or requirements to replace removed vegetation.

How do you choose a consultant?

We encourage developers to engage Level 5 qualified consulting arborists with strong experience preparing reports for development approvals across Victoria. Clear mapping, practical recommendations, and familiarity with local council expectations are essential. Our team specialises in high-quality reporting for development projects throughout Melbourne: https://www.arborplans.com.au/

Do you need a new report every time you lodge?

Most councils require current data. Reports may be rejected if more than 12 months old or if site conditions have changed. If your project alters significantly after initial submission, you will likely need an updated assessment.

Why choose Arborplan Arboricultural Consultants?

We bring extensive experience working with councils across Melbourne’s varied suburbs. Our focus is on producing clear, accurate documentation that meets council requirements while supporting practical buildability on construction sites. We work closely with developers, architects, and builders to prevent unnecessary delays and ensure projects progress smoothly.

Final thoughts: setting your project up for success

A quality tree report is not a box-ticking exercise; it is a critical component of the planning and construction process. By engaging qualified consultants early and preparing tailored documentation that responds to local council expectations, developers can reduce approval risks and avoid costly delays.

If you need reliable arboricultural advice for your next project in Melbourne or greater Victoria, contact us today: https://www.arborplans.com.au/contact/