SG ArboriculturalConsulting · Melbourne

Consulting arboriculture · Melbourne

Melbourne arborist reports, written so council can assess them without coming back.

Most reports that get sent back are not wrong about the trees. They just never say what the proposed slab does to the tree next to it, so the planner has nothing to assess and has to ask. I write reports that answer that question, to the current standard, with the fee agreed before I start.

Quotes back within one business day. Reports written to AS 4970:2025 and to Clause 52.37 as it stands today.

Looking up the mossy trunk of a mature eucalypt into the canopy
Most of what decides whether a tree can stay is up in the crown or below the soil, which is why an inspection from the footpath tells you very little.

How it works

A fixed number, back within one business day

Quote turnaround1 business day
Residential inspectionwithin 5 days
Feefixed, in writing
Council queriesincluded

No charge to quote, and none if it turns out you do not need a report. How quoting works.

AQF Level 5Diploma of Arboriculture
7+ yrsClimbing and industry experience
AS 4970:2025Reports written to the 2025 edition
$2MProfessional indemnity insured
1 dayTurnaround on quotes

The problem

A request for further information can cost you a month or more

In my experience the same handful of gaps cause most of them, and they are rarely about the trees themselves. They are about what got left out of the writing up.

The impact on the tree is never stated

A thorough description of the trees that never says what the works do to each one. The planner has nothing to assess, so it goes back. Every retained tree needs a sentence connecting the works to that tree and stating the consequence.

The neighbour's tree left out

A tree over the fence whose root zone reaches into your site is squarely in scope, and that neighbour is often the objector. Leaving it out looks like either an oversight or an omission.

Protection written as a generic note

“Standard tree protection in accordance with AS 4970” gives a planner nothing they can write into a condition. They need to know where the fence goes, at what radius, when it goes up, who supervises it and what is allowed inside it. If a council officer cannot enforce it as written, it is not specific enough.

Most of the delay in a tree application comes from the report, not the tree.

Services

What I do, and what it costs

Ten services, covering everything from a look at the site before you buy it through to signing off the tree conditions at the end. All quoted as a fixed fee before I start.

Tree Removal Report

Council has asked for an arborist report before it will consider removing your tree. This is that report, and it is usually the whole job.

Residential

Arboricultural Impact Assessment

What councils ask for when your works reach into a tree's root zone. Each tree assessed, the zones calculated to AS 4970:2025, and the encroachment measured and justified.

Development

Clause 52.37 Canopy Tree Report

The provision that arrived in September 2025 and now catches trees nothing else reached. Which of yours are caught, whether you need a permit, and what replacement planting you owe.

Residential · Planning

Preliminary Tree Assessment

Commissioned before the design is drawn. Tells you what is on the site, which trees are protected, and where the root zones are going to sit against your footprint.

Before you design

Tree Protection Management Plan

The TPMP that gets conditioned on the permit, written to AS 4970:2025. Specific enough that a planner can enforce it and a site foreman can work to it.

Development

Root & Infrastructure Investigation

Finding out what the roots are actually doing without cutting them, and whether the tree is really behind the problem. Sewers, footings, paving and retaining walls.

Investigation

Arboricultural Supervision

Named on the permit, on site at the hold points and signing off each stage. AS 4970:2025 assumes an arborist stays involved for the length of the project.

On site

Construction Monitoring

Booked attendance across the build, with the stage records council needs to close out the tree conditions on your permit.

On site

Tree Risk Assessment

A documented position on a tree you are worried about, using ISA Tree Risk Assessment Qualification methodology, with the reasoning set out so it holds up if anyone asks about it later.

TRAQ qualified

Tree Protection Zone Advice

A written answer on the root zones for one tree and one proposal, for when you need a figure to design against but not yet a full report.

Written advice

New provision

Clause 52.37 caught a lot of people out

Amendment VC289 introduced Clause 52.37 Canopy Trees to every Victorian planning scheme on 15 September 2025. It can require a planning permit to remove a tree on a residential site where nothing else would have triggered one.

A tree is caught if it meets all three of: more than 5 m tall, trunk circumference over 0.5 m measured at 1.4 m, and a canopy at least 4 m across. It applies in most residential zones but not Low Density Residential.

The trap is the boundary tree. A canopy tree with any part of its trunk within 6 m of the narrowest street frontage or 4.5 m of the rear boundary loses the exemptions that would otherwise apply on a site with an existing dwelling.

The full decision tree, written for builders

The canopy tree minimum is the part that bites

The clause sets a minimum number of canopy trees for the site, and trees you keep count toward it, so what you have to plant is the shortfall. Sites up to 1,000 m² scale from one tree on a site of 100 m² or less to six between 701 and 1,000 m². Above 1,000 m² it switches to a minimum 20% canopy cover of the site area.

New trees have to reach at least 6 m tall and 4 m wide at maturity, and they need real ground to do it in. That is a constraint on your footprint, and much cheaper to allow for while the plans are still moving.

How it works

How the job runs, start to finish

Send me the plans

Site plan, proposed works and the address. If you have not had plans drawn yet, just send the address and tell me what you are hoping to build. That is usually a better time to call than after.

Fixed quote within one business day

A price and a scope you can read in a minute. If the job really needs two stages I will tell you that when I quote it.

Site inspection

Every tree measured and photographed on site, with the figures worked out while I am standing at the tree rather than reconstructed from notes a week later.

Report, and the follow-up

Delivered as a PDF you can lodge. If council comes back with a question about my report, answering it is included in what you already paid.

Buttressed base of an old eucalypt covered in moss
The flare at the base tells you what the roots are doing underneath
Canopy of an old growth eucalypt seen from directly below
Canopy width is one of the three Clause 52.37 tests
Fibrous bark of a mature eucalypt with tree fern at its base
How much excavation a tree survives depends on the ground it is in
Eucalypt crown radiating overhead, viewed from the base of the trunk

Seven years on the tools before I wrote a report

I climbed for a living before I started consulting. Knowing what a standard says is one thing. Having stood there while an excavator opened up a root plate is what tells you whether the protection you have specified is going to survive the job.

More about how I work

Common questions

What qualification does a council require on an arborist report?

Several Victorian councils name AQF Level 5, the Diploma of Arboriculture, as the minimum for consulting work, and others ask for a suitably qualified arborist without naming a level. Where a council does name it, a report from an author below that level can be refused on qualification grounds alone.

What changed in AS 4970:2025?

The 2025 revision separated the calculated zone from the applied one. What used to be the calculated TPZ is now the Notional Root Zone (NRZ), and the TPZ is the area protected on site as determined by the project arborist. Diameter at Breast Height became Diameter at Standard Height, still measured at 1.4 metres. Encroachment is now assessed as a proportion of NRZ area rather than radius.

When did Clause 52.37 canopy trees start?

Amendment VC289 introduced Clause 52.37 to all Victorian planning schemes on 15 September 2025. It applies in most residential zones and can require a planning permit to remove a canopy tree even where no other permit is triggered.

Do you carry out the tree works as well?

No. This is a consulting practice only, so I do not prune, remove or climb. Nothing I recommend earns me work on the other side of it, which is the point. I am happy to recommend contractors.

Send me the plans and I will send you a number.

Fixed fee, quoted in writing within one business day, with the scope written down so nobody is surprised later. If it turns out you do not need a report, I will tell you that too.

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