Lower North Shore · AS 3660.1
AS 3660.1 termite barriers for the rebuilds, duplex splits and boutique infill that still happen on the Cremorne Point peninsula, around Cremorne Reserve and Corner Beach, postcode 2090.
Quick answer
Wherever a rebuild, duplex split or infill unit goes ahead on Cremorne Point, the National Construction Code requires a termite management system, because North Sydney Council administers a termite-prone zone. AS 3660.1 is the installation standard. Regardless of project size, a durable notice and an installation certificate must reach the certifier before the Occupation Certificate can be granted.
Termite barriers in Cremorne Point
Cremorne Point is a narrow harbour peninsula in the North Sydney Council area, about 3.6 km north-east of the CBD, almost entirely built out with apartments and units alongside a scattering of early twentieth-century houses in Arts and Crafts and Federation styles. Cremorne Reserve, proclaimed in 1905, rings much of the point and links by foreshore walk toward Neutral Bay, and the point is also home to the 1920s MacCallum Pool, the Sydney Amateur Sailing Club and two ferry wharves. There is almost no vacant land left here, so new termite barrier work is limited to the occasional knockdown rebuild of a freestanding house, a duplex split, a granny flat, or a boutique infill unit development on one of the few larger sites.
Being wrapped in harbour reserve on most sides gives Cremorne Point its own particular ground conditions. Trees and gardens along the foreshore keep the air moist, and sub-floor and storage spaces in the older houses can stay damp for long stretches, especially where a block backs onto the reserve itself. Apartment buildings share bin rooms, ducts and common areas, so a barrier on a unit development needs to account for every dwelling on the one slab rather than a single house. Whatever the scale of the project, from a small rebuild to a boutique infill block, the same close attention to roof lines, damp sub-floor spaces and shared service penetrations applies before the concrete goes in.
Reviewed by Ismail, founder · Lower North Shore coverage · Updated September 2026 · More Lower North Shore suburbs
Get my fixed quote
Local conditions
Three things shape barrier work on the rare sites where new construction happens at Cremorne Point.
Cremorne Reserve rings most of the peninsula, and trees and gardens along the foreshore keep humidity high close to many blocks. Sites backing onto the reserve get a full perimeter system, since bushland-edge conditions apply even this close to the harbour.
Early twentieth-century Arts and Crafts and Federation houses on the point can have sub-floor and storage spaces that stay damp given the moist harbour air. A rebuild or major renovation needs the sub-floor ventilation and barrier detailing checked together, not the barrier alone.
With almost no vacant land left, new development is mostly small unit blocks or duplex splits on the few larger available sites. Even a modest project like this needs its own count of collars across the building and a single certificate that names every dwelling it covers.
What we install here
Given how little room Cremorne Point has for new construction, our work here is almost entirely knockdown rebuilds of individual houses, duplex splits, granny flats and the occasional boutique infill unit block on one of the point's larger sites. Waffle pod or raft slabs suit the flatter sections, with suspended floors more common on the steeper blocks near the foreshore. Where a multi-dwelling site is involved, collar counts are sized to every unit on the shared slab, and our visit is timed against the plumber and concreter so a tightly scheduled harbourside build keeps moving.
Local knowledge
Corner Beach, about 0.3 km from the suburb centre, and Sydney Harbour National Park, about 0.9 km away, are the closest natural features to most Cremorne Point sites, and both bring bushland-edge conditions right onto the peninsula. Cremorne Reserve itself, ringing much of the point with its 1905 foreshore walk, has more influence on barrier planning here than any single landmark, since so many blocks back directly onto it. Milsons Point station, about 1.6 km away, sits well outside the peninsula and has little bearing on the work we do here.
North Sydney Council is the certifying body for Cremorne Point. Ahead of any Occupation Certificate for a rebuild, duplex or infill job, it wants a durable notice in the meter box and an installation certificate recording the products, protected zones and installer. Unit blocks sharing a single slab need one certificate that names every dwelling covered, which we draw up against the approved plans and supply with product data and care instructions, so sign-off proceeds without delay.
Cremorne Point at a glance
| Suburb | Cremorne Point, NSW 2090 |
|---|---|
| District | Lower North Shore |
| Distance from Sydney CBD | 3.6 km north-east |
| 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.
Get a fixed quote
Cremorne Point questions
Still unsure? Call and talk it through with a licensed technician.
+61 450 515 215Not much, given how little vacant land the peninsula has left. Most of our work here is knockdown rebuilds of individual houses, duplex splits, granny flats and the occasional boutique infill unit block on one of the few larger sites, all of which still need a standard AS 3660.1 system under the National Construction Code.
The moist harbour air around Cremorne Point can leave sub-floor and storage spaces in these older houses damp for long stretches, so we check sub-floor ventilation alongside the barrier plan. If the house is being demolished, AS 3660.1 sets the same baseline system regardless of the block's age, though we size the soil treatment to whatever the old site has been holding onto for the past century.
One certificate covers the whole building where all the units share a single slab and barrier system, naming the products used and the areas protected across every dwelling. We prepare this against the approved plans for North Sydney Council's certifier so it matches what was actually installed before the Occupation Certificate is issued.
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.
