Sutherland Shire · AS 3660.1
Physical perimeter and under-slab termite protection installed before the pour for Grays Point rebuilds on large bush blocks beside Royal National Park and the Port Hacking estuary.
Quick answer
Yes, a new home in Grays Point needs a termite management system, and the requirement is stricter than average here because the suburb backs directly onto Royal National Park. The NCC calls for a system built to AS 3660.1, put in before the slab is poured rather than added later. Your certifier then needs the durable meter box notice and a written installation certificate before sign-off.
Termite barriers in Grays Point
Grays Point is almost entirely detached houses on large bush blocks, sitting within the Sutherland Shire beside the Port Hacking estuary and right up against Royal National Park. There is very little commercial development in the suburb itself, and building activity is dominated by knockdown rebuilds on the bigger established lots, many with walking and mountain bike trails leading straight from the back fence into the park. A compliant termite management system is required before the certifier will issue the Occupation Certificate on any of these builds, and the only practical time to fit it is before the concrete goes down.
Living beside Royal National Park means sharing the ground with active termite colonies in fallen timber, stumps and leaf litter across the reserve. That pressure does not stop at the boundary fence; it forages through connected soil looking for the nearest way up, which on a new slab means an unprotected pipe penetration, an untreated edge, or soil piled up over the barrier by later landscaping. On a bush block like these, a properly detailed physical and chemical barrier before the pour is the only real way to keep that activity out in the open where it can be seen and dealt with.
Reviewed by Ismail, founder · Sutherland Shire coverage · Updated September 2026 · More Sutherland Shire suburbs
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Local conditions
Three things push termite pressure higher on a Grays Point block than on a typical Sydney rebuild, and each one changes the barrier detail.
Grays Point sits right beside Royal National Park, where established termite colonies live in fallen timber and stumps close to the boundary. Blocks backing onto the park get a full physical perimeter, not a partial run, because the colony pressure here is higher than average.
Most homes sit on large, heavily planted blocks that have carried decades of garden growth. A rebuild clears the house but leaves old stumps, root systems and buried timber behind, which is exactly the kind of material that feeds a colony before the new slab is even down.
Blocks closer to the estuary and the Hacking River tend to hold more moisture in the soil, which suits foraging termites. We pay closer attention to slab edges and step-downs on these lower-lying sites than on blocks further from the water.
What we install here
Almost all of our Grays Point work is knockdown rebuilds and the occasional granny flat on large, established bush blocks. Waffle pod and raft slabs are standard, with suspended sections where a block falls away toward the estuary or the park. Collars go on every penetration before the pour, and we run a full physical perimeter on any site backing onto bushland. We schedule our visit between the plumber's rough-in and the pour so nothing on site is held up, and a single fixed quote from the plans covers the whole job through to certification.
Local knowledge
Most of our Grays Point work sits close to Swallow Rock Reserve and the bushland running along the Hacking River toward Royal National Park, where the boundary between garden and bush is often only a fence line. Blocks nearer Grays Point Oval and the open grassed areas tend to need a more standard perimeter, while sites backing directly onto the park boundary get the fullest detailing, particularly around any retaining walls or slab step-downs.
The Sutherland Shire is the certifying council for Grays Point, and before it will release an Occupation Certificate two documents must be on file: a durable notice permanently fitted in the meter box, and an installation certificate that names the products, the areas treated and the installer. Both are handed over as soon as the work is complete, along with data sheets and advice on keeping the system intact once landscaping goes in.
Grays Point at a glance
| Suburb | Grays Point, NSW 2232 |
|---|---|
| District | Sutherland Shire |
| Distance from Sydney CBD | 24.1 km south-west |
| Certifying council | Across Sutherland Shire |
| 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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Grays Point questions
Still unsure? Call and talk it through with a licensed technician.
+61 450 515 215Generally yes. A property that borders the park usually calls for a full physical perimeter rather than a partial one, given the colony pressure that comes with established bushland right against the fence line. Retaining walls and step-downs where the slab meets sloping ground near the boundary also get extra care in the design, since those are the spots most likely to be bridged.
As soon as your builder can give you a rough pour date. Collars and any under-slab work have to go in between the plumber's rough-in and the concrete truck arriving, so our visit locks in around that window. Send through the site plan early if the block is sloping, so retaining and step-down details can be priced accurately.
On a block this close to national park bushland, most owners settle on a physical perimeter system, sometimes with a reticulation line added for any area that will later sit under paving or landscaping. We walk through the options for your specific block rather than defaulting to one approach for every site.
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 Sutherland Shire.
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.
