Termite Protection for a New Build in Melbourne
Updated: 23 hours ago
If you’re building a new home in Melbourne, plan for termite protection from the very start. In Victoria, building, extending or renovating in a council-designated termite area means you must have some form of termite management. Even where it isn’t compulsory, it’s cheapest and easiest to put in while the site is still open and the slab hasn’t been poured.
This guide explains what the rules say, the systems available, what you should see on paper at handover, and the site habits that make the biggest difference.
TL;DR
Termite management is required in Victoria when you build, extend or renovate in an area your local council has designated as subject to termite attack. Check with your council or building surveyor.
You can use a termite-resistant primary structure (such as concrete slabs or termite-resistant timber or steel framing) or install a chemical or physical barrier built to AS 3660.1.
No new home is termite-proof. Systems reduce risk and make entry visible, so regular inspections still matter.
Ask for the certificate of installation and a durable notice fixed to the building, and put an annual inspection in your diary.
Raise termites with your builder before the slab is poured, not after.
Table of Contents
Are new homes termite proof?
No. A new home is better placed than an old one, but nothing about a modern build makes it immune. The Building and Plumbing Commission (BPC) describes the aim of termite management as reducing the chance of termites damaging your house. It does this by keeping cellulose (timber and paper products) out of contact with soil and by encouraging termites to build visible mud tubes, so they show themselves before the damage is done.
That last point is worth sitting with. A good system isn’t a force field. It’s closer to a well-lit corridor: termites that want to reach your frame have to cross an exposed path, and an inspector can spot them.
The CSIRO also notes that termite risk varies across Australia, and that some areas around Melbourne are lower risk. Lower risk is no risk, though, and the regulations work on designated areas, not on a gut feeling about your street.
Is termite protection mandatory in Victoria?
It depends on where the block is. The BPC says that if you’re building, extending or renovating within an area your local council has designated as subject to termite infestation, you must have some form of management against termite attack. The Victorian Building Regulations 2018 give councils that power: a “designated special area” includes one where buildings are likely to be subject to attack by termites.
Some councils go further in practice. Mornington Peninsula Shire, for example, states that all new houses in the shire, extensions included, must have some form of termite management in accordance with AS 3660.1. The exception is detached Class 10 buildings such as sheds, garages and carports.
Which Melbourne areas are designated?
There isn’t one tidy list that covers all of Melbourne, because designation is made council by council. The reliable way to find out is simple:
Ask your building surveyor, who will know the council’s position and will assess your plans.
Check your council’s building pages or call its building department.
Ask your builder, who should already know before quoting.
Our advice: even if your council hasn’t designated your area, treat termite management as a sensible inclusion. Your home is likely your biggest asset, and the system is far easier to install at construction stage than to retrofit around a finished house.
The two ways to protect a new home
For Victorian new builds, the BPC outlines two broad paths. You can use termite-resistant primary structural elements, or you can specify a physical or chemical barrier installed during construction in accordance with AS 3660.1.
Option 1: Termite-resistant structure
This means building the main structure from materials termites can’t feed on or tunnel through, such as concrete slabs, termite-resistant timber, or steel framing. The CSIRO explains the logic: resistant materials limit the food source for termites.
It sounds like the end of the story, but the detail matters. Termites can still reach other timber in the home (joinery, skirting, built-ins) if they find a hidden way in, so the building still has to be designed and finished so entry points aren’t concealed.
Option 2: A barrier system
Barriers are designed to deter concealed access. Wyndham City’s guidance lists the accredited systems recognised under the National Construction Code (NCC) as:
Chemical barriers
Graded particle barriers
Sheet metal barriers
Composite systems
The BPC notes that some barriers need ongoing inspections and maintenance, and chemical systems need replenishing. That is a running commitment you should understand before you choose.
Quick comparison
Resistant primary structure | Chemical barrier | Physical barrier | |
How it works | Removes food source and limits access | Treated zone around and under the building | Physical layer termites can’t pass unseen |
Installed | Part of the structural design | During construction, to AS 3660.1 | During construction, to AS 3660.1 |
Ongoing needs | Inspections | Inspections, plus replenishment over time | Inspections, and some systems need maintenance |
Decide | At design stage | Before slab and perimeter works | Before slab and perimeter works |
Which suits your build depends on the slab type, the site, the design and your budget. Your builder and a licensed termite installer should walk you through it for your block.
What AS 3660.1 and the NCC actually require
AS 3660.1 is the Australian Standard for termite management in new buildings. The Housing Industry Association (HIA) summarises the 2014 edition as covering the design and construction of subterranean termite management systems for new buildings and new building work, with solutions for both physical and chemical systems.
The NCC Housing Provisions (Part 3.4) say that where a termite management system is required, it must be chosen to suit the NCC’s table of options and either comply with AS 3660.1 or pass the tests in Section 5 of AS 3660.3.
A few practical points follow from this:
Installers must be qualified. Systems must be installed to the Standard, not approximated.
Design life is a conversation to have. The AEPMA Code of Best Practice for termite management during construction says systems fitted to new buildings should provide whole-of-building protection for at least 50 years. Ask what design life and warranty apply to the system proposed for your home.
Inspection is built in. Protection depends on the system and the follow-up.
Site habits that cut termite risk
The system is only as good as the build around it. The BPC gives specific guidance for construction and design, and we’d pass on the same points to every client:
Clear the site properly. Remove tree stumps, roots and timber off-cuts rather than burying them.
Consolidate the soil. Well-compacted soil reduces cracks in the slab. The BPC warns that cracks as small as 1.5 mm may allow termite entry.
Keep garden beds and mulch down. Don’t build garden beds or pile mulch up against walls, which can hide entry points.
Don’t stack materials against walls. Firewood, spare timber and pavers can create undetectable access.
Keep the building visible. Design so that edges, slab perimeters and barrier points can be inspected.
None of this is glamorous, but it’s exactly the sort of detail that separates a well-run site from a rushed one. It’s also why we like to speak with clients early about the full building sequence, as set out in our guide to the building process for Australian homes.
What you should receive at handover
This is where homeowners most often feel in the dark, so know what to expect.
A durable notice. The NCC requires a durable notice to be permanently fixed in a prominent location on the building. It should show the termite management system used, the date it was installed, the chemical’s life expectancy where a chemical is used, and the installer’s or manufacturer’s recommendations for the scope and frequency of future inspections.
A certificate of installation. For chemical systems, the BPC says the building surveyor verifies the termite management system before issuing the certificate of final inspection or occupancy permit. It also points to Appendix A of AS 3660.1, which lists the information that should appear on the certificate of installation.
Documented ongoing advice. The AEPMA Code states that installers must give documented advice about the ongoing management needs of the system, including a recommended service and inspection schedule. The Code also calls for handover information that includes regular termite inspections, at least annually, and notes that reticulation systems are normally inspected and replenished every three to five years as set out in the warranty.
Keep all of it together with your other building documents. If you sell, the next owner will want to see it. Our overview of Home Warranty insurance in Victoria (formerly Domestic Building Insurance) covers another set of handover paperwork worth filing alongside it.
Questions to ask your builder before the slab goes down
Before you sign, or at the latest before pre-slab works begin, ask:
Is my site in a council-designated termite area, and what has the surveyor said?
Which system is specified (resistant structure, chemical, physical or a combination), and why for this block?
Who is installing it, and are they qualified to install to AS 3660.1?
What warranty and design life apply, and what must I do to keep it valid?
When will the system be installed, and how is it coordinated with the slab and plumbing trades?
What will I receive at handover: certificate, durable notice, inspection schedule?
A builder who answers these clearly and in writing is usually a builder who runs the rest of the job the same way. If you’re still weighing who to engage, our checklist for choosing a builder in Melbourne pairs well with this list.
What does termite protection cost?
We won’t quote a number here, because it honestly varies by project. The main things that move the price are:
Size and shape of the building. More perimeter and slab area means more to treat or protect.
System type. Chemical, physical and resistant-material approaches have different upfront and ongoing costs.
Site conditions. Slope, access, soil, and how complex the slab and penetrations are.
Warranty and maintenance terms. A longer-term plan may involve scheduled inspections or replenishment.
Staging. Some systems need several visits around pour and perimeter works.
The best approach is to have termite management itemised in your contract so it isn’t an afterthought or a variation later. If you’re also planning other structural work, our guide to structural renovation costs in Melbourne shows how we think about line items and allowances.
Extensions, knockdown rebuilds and heritage homes
Termite rules aren’t only for brand-new houses on empty blocks.
Extensions. The BPC’s requirement applies to building, extending or renovating in a designated area, so an addition can trigger it. Councils such as Mornington Peninsula Shire apply it to extensions explicitly. Our guides to terrace house extensions and going up versus out cover how approvals tie together.
Knockdown rebuilds. A rebuild is a new build in the eyes of the regulations, so the same thinking applies from day one. See our knockdown rebuild service.
Heritage homes. Older timber-framed homes need sympathetic care, and an inspection by an approved pest controller is wise before and after works.
If termites turn up in an existing home, the BPC advises engaging an approved pest controller, who can recommend the best treatment. That may include chemical sprays, reticulation or baiting systems.
How we handle this on your build
Termite management is one of dozens of details that need to land in the right order, and we’d rather you never have to chase it. Our approach is end-to-end project management, covering design, permits, approvals and construction oversight, with clear communication throughout. It means termite management is something we raise early with you, alongside your plans and your building surveyor’s requirements.
We design and build custom homes across Melbourne, including extensions, major renovations, architectural new builds, design and build projects and heritage restorations. If you’re planning a new home and want a straight conversation about what the process involves, book a free project feasibility call.
You can also browse our projects to see the kind of homes we build.
FAQs
Is termite protection compulsory for a new home in Melbourne?
It’s compulsory where your local council has designated the area as subject to termite attack. In those areas, the BPC says new builds, extensions and renovations need some form of termite management. Your building surveyor or council can confirm the position for your block.
How often should a new home be inspected for termites?
The AEPMA Code of Best Practice calls for regular inspections, at least annually, and installers must provide a recommended schedule. Your durable notice and installation paperwork should also state the inspection scope and frequency for your particular system.
Can I choose between a chemical and a physical barrier?
Yes. The BPC says you can use a termite-resistant primary structure or specify a physical or chemical barrier installed during construction to AS 3660.1. The right pick depends on your design, slab and site, so discuss it with your builder and a qualified installer.
Does a termite barrier last forever?
No. The AEPMA Code expects whole-of-building protection for at least 50 years from new systems, but the BPC notes some barriers need ongoing inspections or chemical replenishment. Follow your warranty terms and keep inspection records.
What should I do if I find mud tubes or damaged timber?
Contact an approved pest controller promptly, as the BPC advises. Leave the tubes undisturbed until they’ve seen them, and keep your installation certificate handy because it tells them what system is in place.
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