What It Costs to Demolish a House in NSW

The 2026 bands

Indicative planning ranges for NSW, weighted to Illawarra conditions. The written price after a site assessment is the number that binds.

Job	Indicative 2026 range
Small shed (colorbond or timber)	$1,500 – $4,000
Single or double garage, slab included	$3,000 – $8,000
House — single storey, good access	$18,000 – $30,000
House — two storey or difficult access	$28,000 – $50,000+
Pool removal — partial fill	$8,000 – $15,000
Pool removal — full dig-out	$15,000 – $30,000+

Asbestos removal sits outside every one of those bands, deliberately. Averaging it in produces a number that means nothing.

The five variables

1. Disposal tonnage. The largest single line in most demolition quotes and the least visible. Waste is charged by weight and split by stream — clean concrete, mixed waste, timber, metal, and asbestos-containing material each at their own rate. A house is heavier than people expect.

A good quote states the tonnage assumption and what happens if the load comes in over it. "Disposal included" with no figure attached is not an inclusion, it is a hope.

2. Asbestos. On a pre-1990 house in the Illawarra, assume it. The region's post-war expansion happened squarely inside the period when asbestos cement was standard, and the fibro housing across Warrawong, Cringila, Berkeley, Unanderra and Port Kembla is still largely standing.

3. Access. Genuinely a line item here. The strip between the escarpment and the coast produces constrained sites — tight frontages and steep driveways through Thirroul, Bulli and Corrimal, and older parts of Wollongong and Port Kembla. Constrained access means smaller machines, more truck movements, sometimes street loading under permit. Newer land through Dapto and Shellharbour is the opposite.

4. Storeys and structure. A two-storey house is not twice a single-storey one, but it is meaningfully more — more material, more height, more care with adjoining property. Brick is heavier to dispose of than timber frame.

5. Scope at the boundary. Slab, footings, driveway, paths, fences, retaining walls, trees. Each is a separate decision and each is expensive to address after the fact.

What cheap quotes leave out

In rough order of how often we see it:

• The slab and footings. The classic omission. Footings sit below the visible slab and get discovered by whoever excavates next.
• The driveway and the crossover. The crossover between your boundary and the road usually sits on public land and carries its own council requirements.
• Site controls. Fencing, hoarding, sediment control, protection of adjoining property.
• Service disconnections. Someone has to arrange them, and they take weeks. See the disconnections guide.
• A variation method. Not a cost, but the thing that determines every future cost.

Why sorting the waste changes the price

Material separated on site — concrete on its own, metal pulled for scrap, clean timber apart from general waste — disposes for meaningfully less than the same material in one mixed load, because mixed waste is the most expensive stream there is.

That means two quotes built on different disposal strategies are not comparable even if the scope reads identically. It is worth asking directly whether the price assumes sorting.

The machine-time fallacy

A common reaction after the job: "they were only here three days, how is it that much?"

Machine time is rarely the dominant cost. Demolition pricing is mostly disposal, mobilisation, labour and compliance. The three days on site sit on top of weeks of approvals, disconnections, survey work and scheduling, and the truck movements continue after the excavator has left.

Judging a demolition price by the days visible on site is like judging a flight by the time the wheels are off the ground.

What a complete quote contains

• The disposal tonnage assumption and the over-run position
• An explicit statement on asbestos — surveyed, assumed, or excluded pending survey
• What is included at the boundary: slab, footings, driveway, fences, retaining walls
• Service disconnections — who arranges them
• The approval pathway and who obtains it
• Site controls — fencing, sediment, protection of adjoining property
• The condition the site is left in
• A written variation process

What moves the number on an Illawarra block specifically

Three regional factors show up repeatedly in our quoting, and none of them are obvious from a national cost guide.

The escarpment strip. Thirroul, Austinmer, Bulli, Woonona and Corrimal sit on a narrow band between the escarpment and the sea. Blocks are long and thin, frontages are tight, driveways are steep, and many streets will not take a truck standing to load. That converts a straightforward job into smaller machines, more movements, and sometimes hand demolition with material carried out. It is the single biggest regional cost multiplier.

Fibro prevalence. The post-war housing across Warrawong, Cringila, Berkeley, Unanderra and Port Kembla means the asbestos question is live on most pre-1990 houses here, in a way it is not in a 2005 estate. That is cost and program both.

Cartage distance. Disposal facilities are not evenly spread. A job in central Wollongong and one at Ulladulla or Bundanoon carry very different cartage components, and averaging them would overcharge the close jobs and undercharge the far ones. We price it from the site.

Commercial and industrial work prices differently

Everything above is residential. If you are pricing a commercial or industrial demolition — and the older industrial areas around Unanderra, Port Kembla and Kembla Grange generate a steady stream of it — the drivers change.

Structural steel has scrap value that can materially offset the cost. Concrete-framed buildings are heavier and slower. Sites often carry contamination history requiring assessment before anything moves. Work frequently happens around neighbouring tenancies still trading, which imposes hours, noise and dust controls.

Those jobs are quoted from the site and the documentation rather than from a band table. Strip outs covers the internal-only version.

Rough guide versus real quote

Everything on this page is orientation. It is genuinely useful for setting a budget, deciding whether a project is viable, and sanity-checking a number somebody has given you.

It is not a quote, and it cannot become one without somebody standing on the block. What is in the walls, what is under the slab, what the neighbouring structures are attached to, and how many truck movements the access actually allows are not knowable any other way.

Getting a number that holds

Demolition cannot be priced properly from a phone call. What is inside the walls, what sits under the slab, what the neighbouring structures are attached to, and how many truck movements the access allows are all things you establish by standing on the block.

A firm price quoted over the phone on a pre-1990 house is a starting bid, not a price.

The cost page carries the full band table, and how demolition quotes are built goes deeper on reading one. For a real number, call 02 4214 4202 or send the site details through.