Lower North Shore · AS 3660.1
Wrapped by Garigal National Park at the head of Middle Harbour, Roseville Chase in postcode 2069 sees bush pests year-round, and every rebuild here needs a barrier closed off before the pour.
Quick answer
Yes, a new home or rebuild in Roseville Chase needs a termite management system under the NCC, since the suburb sits directly against national park bushland. The system is installed to AS 3660.1 before the slab is poured, with collars fitted at every penetration. A durable notice for the meter box and an installation certificate for the certifier are both required before the Occupation Certificate.
Termite barriers in Roseville Chase
Roseville Chase is a small Ku-ring-gai Council suburb about 10.4 km north of the CBD, sitting at the uppermost reaches of Middle Harbour. Much of the surrounding bush is part of Garigal National Park, and the Moores Creek gully forms the suburb's western and northern boundaries. Two main residential pockets make up the suburb: the lower streets south of Roseville Bridge, and the higher streets around Ormonde Road with harbour views, with lighter development north of Warringah Road. Knockdown rebuilds on these established blocks are the main source of work, and every one of them sits within reach of genuine national park bushland on at least one side.
Living this close to Garigal National Park means bush pests are a year-round fact of life, with termites, funnel-web spiders, possums and rodents all able to move from the park and the creek gully into gardens, sub-floors and roof spaces. Sloping, shaded blocks around the gully hold moisture longer than open, sunlit ground, and that combination of shade and damp soil is exactly what subterranean termites look for. A barrier here has to account for bushland on more than one boundary, not just a single tree line at the back fence.
Reviewed by Ismail, founder · Lower North Shore coverage · Updated September 2026 · More Lower North Shore suburbs
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Local conditions
Three conditions define how we detail a barrier in Roseville Chase.
Much of the bushland around Roseville Chase forms part of Garigal National Park, and termites can move from established colonies there straight into nearby gardens and sub-floors. Blocks on the park boundary get a full, continuous perimeter.
The creek gully forms the suburb's western and northern edge, and sloping, shaded ground around it holds moisture longer than open blocks elsewhere. That damp, shaded soil is exactly the condition subterranean termites forage through.
The higher streets around Ormonde Road step down toward the harbour, often needing retaining walls and split levels. Every step-down and retaining junction on a slope like this is a point where a barrier can leave a gap if it isn't detailed carefully.
What we install here
Roseville Chase work is almost entirely knockdown rebuilds and extensions on the suburb's established blocks, split between the lower streets near Roseville Bridge and the higher, harbour-facing streets around Ormonde Road. Waffle pod and raft slabs suit the flatter sites, with suspended floors and piers where a block falls steeply toward the gully. We fit collars to every penetration and run the perimeter to the true boundary, giving particular attention to retaining walls and step-downs, and we schedule our visit around your builder's program.
Local knowledge
Nungara Reserve and Echo Point Park both sit within reach of much of our Roseville Chase work, their leaf litter and garden beds a reminder of how close established bushland presses in on this suburb. Roseville Golf Course adds a stretch of irrigated turf nearby, which we account for when assessing ground moisture. With national park bushland effectively wrapping the suburb, our inspections always include the sub-floor, the roof void and any timber in contact with soil, regardless of which pocket of Roseville Chase a block sits in.
Roseville Chase is certified through Ku-ring-gai Council, which needs two records before it will grant an Occupation Certificate: a durable notice sitting in the meter box, and an installation certificate that sets out the products, the protected zones and the licensed installer's credentials. Both land with your certifier as soon as our part of a Roseville Chase rebuild is finished, so there's nothing outstanding from our end at sign-off.
Roseville Chase at a glance
| Suburb | Roseville Chase, NSW 2069 |
|---|---|
| District | Lower North Shore |
| Distance from Sydney CBD | 10.4 km north |
| Certifying council | Ku-ring-gai 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
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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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Roseville Chase questions
Still unsure? Call and talk it through with a licensed technician.
+61 450 515 215Homes near the park boundary or the Moores Creek gully face steadier termite pressure than a typical suburban block, because established bushland colonies can move directly into nearby gardens and sub-floors. We still install a compliant AS 3660.1 system on every job, but run a fuller, more continuous perimeter on park-adjacent sites.
Often, yes. The higher streets around Ormonde Road step down toward the harbour, and every retaining wall or split-level junction on a sloping block is a point where a barrier needs careful detailing to avoid leaving a gap. We plan those junctions from the engineering drawings before starting on site.
Roseville Chase is certified through Ku-ring-gai Council, and its Occupation Certificate depends on a durable notice fitted in the meter box plus an installation certificate covering the products, the areas treated and the licensed installer. We have both finalised as soon as our stage of the rebuild wraps up, whichever pocket of the suburb it's in.
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.
