Lower North Shore · AS 3660.1
Collars and under-slab systems installed to the builder's program on North Sydney construction, from tower basements near Miller Street to harbourside homes backing onto Sydney Harbour National Park.
Quick answer
Yes. A new residential building in North Sydney, whether a tower, a townhouse or a harbourside rebuild, needs an NCC termite management system installed to AS 3660.1. Collars and any under-slab work go in before the concrete pour. The durable notice for the meter box and an installation certificate for North Sydney Council are both required before the Occupation Certificate is issued.
Termite barriers in North Sydney
North Sydney is the commercial heart of the lower North Shore, about 3.3 km north of the CBD in the North Sydney Council area. It holds one of the largest clusters of office buildings in New South Wales, much of it built during a tower boom in the early 1970s, with Miller Street as its main spine. North Sydney station on the North Shore line and the newer Victoria Cross metro station bring heavy daily foot traffic, and the harbour edge is only a short walk south. Residential construction here is mostly apartment towers and mixed-use buildings, with pockets of freestanding homes on the streets running down toward the water.
A basement-level apartment slab in the middle of North Sydney's commercial core is a different termite job from a home backing onto Sydney Harbour National Park, and we treat them differently. Tower sites need collar counts and access scheduling planned around a busy construction program with multiple trades on site at once. The pockets of freestanding housing nearer the harbour sit closer to bushland reserves and steep gullies, where established colonies forage from the bush edge, so those blocks get the same full perimeter attention as a suburb built right against the bush.
Reviewed by Ismail, founder · Lower North Shore coverage · Updated September 2026 · More Lower North Shore suburbs
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Local conditions
Three things shape termite risk across North Sydney's mix of tower and harbourside construction.
Apartment and mixed-use towers near Miller Street and the two stations often have basement-level slabs with a large number of service penetrations, shared with commercial space above. Collar counts and scheduling around a busy multi-trade site drive both the price and the timing on jobs like these.
Streets running down toward the harbour sit near Sydney Harbour National Park, where steep bushland gullies hold established colonies that forage into nearby gardens. Rebuilds on these blocks get a full perimeter system, with extra care at any junction where the slab steps down the slope.
Freestanding houses on North Sydney's residential fringe sit alongside recent apartment development, so rebuild sites often carry decades of established garden and buried timber. Soil treatment and the under-slab system matter as much as the perimeter on those older blocks.
What we install here
We work on North Sydney apartment and mixed-use tower developments near the commercial core, harbourside home rebuilds and renovations on the residential fringe, and the occasional granny flat behind an existing house. Basement and podium slabs are common on tower sites, while suspended floors and piers turn up on blocks that fall away toward the harbour. You get one fixed written quote from the plans covering every stage, and we attend in stages so a barrier visit never holds up a busy construction program.
Local knowledge
Our North Sydney work runs from the tower and mixed-use sites near Greenwood Plaza and North Sydney station, where collar counts and multi-trade scheduling drive the job, out to the harbourside streets bordering Sydney Harbour National Park, where bushland gullies shape the perimeter detailing. Around Cammeray Golf Course, irrigated turf keeps some neighbouring blocks damper for longer, which we factor into slab edge checks nearby.
North Sydney Council needs two documents before it will grant an Occupation Certificate: a durable notice for the meter box, noting which termite system is in place, and a certificate from the installer that names the products, the areas covered and the licence held. We prepare both promptly once our part of a North Sydney build is finished, whatever the scale of the site.
North Sydney at a glance
| Suburb | North Sydney, NSW 2055 |
|---|---|
| District | Lower North Shore |
| Distance from Sydney CBD | 3.3 km north |
| Certifying council | North Sydney Council |
| Standard applied | AS 3660.1 termite management systems |
| Installed | Before the slab pour, then staged through the build |
| Documents supplied | Installation certificate and durable notice |
| Typical builds covered | New homes, knockdown rebuilds, granny flats, duplexes, townhouses |
Systems we install
Every photo below is from one of our own Sydney jobs. We look at your slab design, site and budget, then recommend a system or a combination.
01A termite-resistant sheet laid over the whole prepared footprint before concreting, so termites can't come up through the slab anywhere.
02A sealed collar on every pipe, conduit and service that passes through the slab. These gaps are the most common hidden way in.
03Protection at the slab edge and into the wall cavity, which stops termites building hidden tunnels up the outside of the slab.
04An APVMA-registered termiticide zone in the soil, with an optional pipe network under paving so it can be recharged later without digging.
05Barriers for bearers, piers and raised timber floors on sloping or elevated blocks, where there's no slab to protect.
06Detailing for sandstone cuts, block retaining walls, step-downs and cut-and-fill sites, which are common across Sydney.
Why during construction
A retrofit can only treat around a finished house. A pre-construction system protects the parts nobody will ever be able to reach again.
A barrier put in during the build costs a fraction of a post-construction system, and far less than repairing termite damage.
New houses (Class 1) and outbuildings (Class 10) with termite-susceptible framing need a compliant termite management system.
Pipe penetrations and slab joints can only be fully protected while they're still open, before the concrete goes in.
An under-slab system covers ground that no treatment from outside the finished house can ever reach.
Your certifier needs the certificate and durable notice before issuing the Occupation Certificate. We supply both together.
Documented, compliant protection gives buyers, building inspectors and lenders confidence when the home is sold.
Installation stages
A termite barrier isn't a single visit. Each part goes in when the site is ready for it, and we fit around your plumber, concreter and bricklayer.
Send your plans and slab details. We recommend a system and give you one fixed price that covers every stage.
Collars go on every service once the plumber has set out, then the membrane or soil treatment is installed across the prepared site.
Perimeter and cavity protection is fitted as the brickwork or cladding goes up, so there's no unprotected gap at the slab edge.
Where it's specified, the chemical perimeter or reticulation system is completed around the building before paths and gardens go in.
A durable notice goes in the meter box, and the installation certificate goes to your builder and certifier.
The owner gets simple care instructions and an inspection schedule so the system keeps doing its job for years.
Compare systems
Both can meet AS 3660.1. The best choice depends on your slab type, what surrounds the house and how much ongoing upkeep the owner wants.
Physical protection
Entry-point protection
Soil protection
Top-up protection
Most of the Sydney builds we work on use a combination: physical collars on every penetration plus a physical or chemical perimeter.
For builders & developers
Builders, developers and owner-builders get a fixed quote from plans, a technician who turns up when the site is ready, and paperwork that never holds up sign-off.
Consistent pricing across lots, one point of contact and a full document set for every dwelling.
Missing durable notices and unclear install records are a common reason Occupation Certificates get held up. We hand everything over together so your certifier has it all in one go.
Paperwork
A complete document set for the builder, the certifier and every future owner of the property.
A permanent notice in the meter box showing the system, install date, installer, any chemical's life expectancy and inspection advice.
For: certifier, owner, future owners
Written confirmation of the system and products used, the areas protected and our licence details.
For: builder, certifier, owner
Details of the physical system or termiticide installed, including safety data sheets for any chemicals.
For: builder, owner
How to keep the system working, plus the recommended inspection frequency under AS 3660.2.
For: homeowner
From real jobs
Photos from our own Sydney sites, not stock images. Tap any photo to see it larger.
Membrane barrier across a large residential slab
Barrier work on a Sydney Harbour site
Installation through sandstone excavation
Perimeter barrier and sleeves on a new slab
Waffle pod formwork with collared penetrations
Membrane detailed against a retaining wall
Membrane sealed around a column
Protected slab edge with collar in place
Collared penetrations before the pour
Perimeter barrier on a completed slab edge
Pipe penetrations sealed into the membrane
Collars fixed through mesh before concreting
Google reviews
Real, verified reviews from homeowners and businesses we've worked with.
Pricing
Every build is different, so we don't guess. We price from your plans and give you one fixed written quote. Quoting is free.
After handover
A barrier only works while it stays intact and visible. Pass these on to the owner.
Free fixed quote
Tell us about your build and get a clear, fixed price, fast. We usually reply within 30 minutes during business hours.
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North Sydney questions
Still unsure? Call and talk it through with a licensed technician.
+61 450 515 215The same NCC requirement applies, but the job is scaled differently. A basement-level tower slab can carry a large number of service penetrations shared with commercial space, so collar counts and scheduling around a busy multi-trade construction program matter more than they would on a single detached home. We confirm penetration counts from the plans before quoting the job.
Yes. Bushland gullies along the park hold established colonies that forage toward nearby gardens, so rebuilds on those blocks get a full perimeter system rather than a partial strip, with extra attention to any retaining wall or step-down where the slab meets the slope. We also check any retaining wall for proper drainage, since a blocked junction can undo the rest of the barrier.
As soon as you have a rough slab or pour date from the builder or site supervisor. Collars and any under-slab work go in after the plumber's rough-in and before the pour, so on a busy multi-trade site we coordinate our visit with the broader program to avoid holding anyone up.
In most cases, yes. The National Construction Code requires a termite management system for new houses and outbuildings in termite-prone areas where the primary building elements can be damaged by termites. Sydney is termite-prone, so the system is installed to AS 3660.1 and your certifier asks for the installation certificate and durable notice before the Occupation Certificate is issued.
It depends on slab area, perimeter length, the number of pipe penetrations, the system chosen, site complexity and how many visits the build needs. Send us the plans and we return one fixed written quote covering every stage. Quoting is free.
Nearby
Same crew, same staging and the same certifier-ready paperwork, right across the Lower North Shore.
Service areas
From the Eastern Suburbs and Inner West to the Hills, the Shire and the western growth corridors. Every suburb has its own page with the local ground conditions, the council that certifies the work and the questions builders there ask us.
Slab pour coming up?
Send us your plans today for a fixed quote, or call and talk to a licensed technician about your site.
