Sydney has an asbestos problem that most homeowners never think about until renovation day arrives.
The numbers paint a clear picture. Australia was one of the highest per-capita consumers of asbestos products in the world for most of the 20th century. The bulk of that consumption went straight into residential construction. And Sydney, as the country’s largest city, carries a massive share of that legacy.
So how many homes are we actually talking about? And what does it mean for you if your house was built before 1990?
The Scale of Sydney’s Asbestos Housing Stock
Australia did not ban asbestos entirely until 31 December 2003. But the peak period for asbestos use in building materials ran from the 1940s through to the mid-1980s. Fibro sheeting, corrugated roofing, vinyl floor tiles, pipe insulation, and cement cladding all contained asbestos during this period.
According to the Australian Bureau of Statistics, roughly one in three Australian homes were built before 1982. In Greater Sydney, that proportion is significant given the city’s post-war suburban expansion. Suburbs across Western Sydney, the Macarthur region, and parts of the Inner West were developed heavily during the 1950s through 1970s, right in the middle of Australia’s asbestos boom.
The Asbestos Safety and Eradication Agency (ASEA) has stated that approximately one third of all homes in Australia contain some form of asbestos material. In a city the size of Sydney, with over two million residential dwellings, that represents hundreds of thousands of properties.
Where the Asbestos Is Hiding
Not every home built before 1990 has the same risk profile. The type and location of asbestos depends on the era of construction and the materials used.
Fibro homes (1940s to 1980s): These are the most obvious candidates. The flat cement sheeting used for walls, eaves, and ceilings in fibro homes almost always contains chrysotile (white) asbestos. Suburbs like Campbelltown, Fairfield, Blacktown, and Penrith have high concentrations of fibro housing stock.
Brick veneer homes (1950s to 1980s): Even brick homes from this era commonly used asbestos cement sheeting behind the brick, in wet areas like bathrooms, under eaves, and in garage linings. The bathroom is one of the most frequently overlooked locations.
Weatherboard homes (pre-1960s): Older weatherboard homes in areas like Balmain, Annandale, and Ashfield often contain asbestos in backing boards, insulation, and flooring.
Multi-unit buildings: Flats, walk-ups, and commercial buildings built before 1990 regularly contain asbestos in fire doors, lift shafts, electrical boards, and ceiling cavities.
Why the Number Matters for Homeowners
The issue is not just the presence of asbestos. Asbestos in good condition, left undisturbed, generally poses low immediate risk. The problem emerges when homeowners begin renovation, maintenance, or repair work without knowing what is in their walls, floors, and ceilings.
SafeWork NSW has consistently reported that the majority of asbestos exposure incidents in residential settings happen during DIY renovations. Cutting, drilling, sanding, or breaking asbestos-containing materials releases microscopic fibres into the air. Those fibres can cause serious lung diseases including asbestosis, lung cancer, and mesothelioma. Symptoms may not appear for 20 to 40 years after exposure.
This is why asbestos sample testing before any renovation work is not optional. It is the only reliable way to know what you are dealing with.
The Renovation Trigger
Sydney’s property market drives constant renovation activity. Homeowners upgrading kitchens, bathrooms, laundries, and garages in older homes are the most likely group to encounter asbestos. The Australian Housing Industry Association reports that renovation activity across NSW consistently runs into billions of dollars annually.
Each of those renovation projects in a pre-1990 home carries a risk of asbestos disturbance unless the home has already been tested.
Consider the typical scenario. A homeowner in Penrith hires a bathroom contractor. The contractor starts stripping walls and discovers compressed asbestos sheeting behind the tiles. Work stops. The site may already be contaminated. The cost of cleanup, proper asbestos removal, and clearance certification now gets added to the renovation budget.
That scenario repeats across Sydney every single week.
What the Government Is Doing (and Not Doing)
The NSW Government has run asbestos awareness campaigns for over a decade. The Asbestos Awareness Week campaign and local council programs aim to educate homeowners about the risks. Several councils offer subsidised testing or disposal programs for small quantities of bonded asbestos.
However, there is no mandatory asbestos register requirement for residential properties in NSW. Commercial and industrial properties must maintain an asbestos register under the Work Health and Safety Regulation 2017, but homeowners have no such obligation. This means the vast majority of residential asbestos remains unrecorded and unknown to the people living with it.
The 2023 to 2024 asbestos-contaminated mulch crisis in Sydney brought the issue back into public focus. Contaminated mulch was found in parks, gardens, and school grounds across multiple local government areas. While the mulch contamination was a supply chain failure rather than a building materials issue, it reminded Sydney residents that asbestos is far from a historical problem.
What This Means If You Own a Pre-1990 Home
If your Sydney home was built before 1990, the probability that it contains at least some asbestos material is high. That does not mean you need to panic. It means you need to know what is there before you start any work.
The sensible approach is straightforward:
Get a professional assessment. A licensed assessor can identify likely asbestos-containing materials and take samples for laboratory confirmation. This is the starting point.
Test before you renovate. Never assume that a material is safe because it “looks like normal cement” or “doesn’t look like asbestos.” Asbestos was mixed into dozens of different products and cannot be reliably identified by sight alone.
Plan your budget accordingly. If asbestos removal is needed, factor it into the renovation budget from the start. It is far cheaper to plan for it than to deal with it as an emergency mid-project.
Use a licensed removalist. In NSW, any removal of more than 10 square metres of bonded asbestos or any amount of friable asbestos must be done by a licensed contractor. Hazardous Removal Company holds a current SafeWork NSW licence (AD213403) for both bonded and friable removal work.
The Bottom Line
Sydney’s asbestos legacy is measured in hundreds of thousands of homes. The data shows that if your home was built before 1990, the smart assumption is that asbestos is present somewhere. Testing confirms it. Ignoring it does not make it go away.
If you are planning any renovation, maintenance, or demolition work on an older Sydney property, get it tested first. It is the single most important step you can take to protect your family and avoid costly surprises.
Contact Hazardous Removal Company for a free quote on asbestos testing or removal anywhere in the Sydney region.
