How Much Does It Cost to Demolish a House

Knocking down a house is the one renovation decision with no undo button. Everything else can be revisited. This cannot.

Which is why the question people actually want answered is rarely just the price. It is whether the number they have been quoted makes sense, what could still blow it out once the machines arrive, and whether anything on the block is going to stop them.

So here is the unusual part about this guide. Nobody publishes a benchmark for what demolishing an Australian house costs. Rawlinson’s has a demolitions section, but it sits behind a paid subscription. BMT's construction cost table has no demolition line at all. Neither the Housing Industry Association nor any government agency publishes a figure.

What is published, in detail, is nearly every individual cost that makes up the total. Permit fees, levies, disconnection charges, and tipping rates at every government-run facility in Perth are all on the public record. So rather than hand you an invented average, this guide builds the cost from the parts you can verify yourself, and then covers the three things most likely to change it: asbestos, the permit, and heritage.

The Costs You Can Actually Check

Start with the fixed charges. These are set by regulation or published by the provider, and they apply to a standard Perth knockdown regardless of who you hire.

Two of those deserve a note. The Construction Training Fund levy threshold changed on 1 July 2026, and most council information sheets still quote the old $20,000 figure. And Water Corporation will not disconnect water to an occupied dwelling, so the sequencing matters: you move out, then services go, then the permit can complete.

There is also a downstream cost nobody mentions. Water Corporation warns that if a new water service is installed later, you pay the full cost of the new service plus an activation fee. Abolishing the meter rather than retaining it has a price on the rebuild side.

Where The Real Money Goes: Tipping

Waste disposal is usually the largest variable in a demolition quote, and it is the one you can check most precisely, because Perth's government-run facilities publish their gate fees.

Cockburn and Red Hill rates effective 1 July 2026. Armadale rates effective 1 September 2025. Tamala Park from the 2026/27 schedule.

Look at the spread. General waste runs from $217 a tonne at Cockburn to $291.50 at Tamala Park, a difference of about 34 per cent between two government facilities in the same city. Haul distance and destination are not administrative details in a quote. They are a third of the tipping bill.

Now look at Armadale's own columns, which are the clearest published evidence of why sorting matters. Separated waste is $205.50 a tonne against $218.00 unsorted. Clean brick and unreinforced concrete is $111.50 against $167.50 for reinforced concrete. Sorting on site is not environmental garnish. It is the difference between two rates for the same tonnage.

Working out how many bins you need and where they go is worth doing early with a skip bin supplier

rather than mid-demolition.

The Landfill Levy, And Where It Is Heading

Sitting underneath those gate fees is the state waste levy. From 1 July 2026 it is $90 per tonne, up from $88, and the Department of Water and Environmental Regulation publishes the forward schedule: $93 in 2027-28, $94 in 2028-29 and $97 by 2029-30.

It applies to waste received at landfills in the metropolitan region, and also to metro-collected waste trucked to a country landfill, so you cannot avoid it by tipping further out.

That legislated escalation is worth knowing if your demolition is a year or two away. The tipping component of your quote is going up whether the contractor's rates move or not.

Asbestos Is The Variable That Matters Most

If your house is old enough, this is the single biggest thing standing between your quote and your final bill.

The Western Australian government publishes a two-tier likelihood statement keyed to build date, and it is more direct than the national guidance. Houses built in WA before the mid 1980s are highly likely to contain asbestos-containing products. Houses built between the mid 1980s and 1990 are likely to. Asbestos cement products were manufactured in WA from 1921 to 1987 and were used extensively here, most commonly as flat or corrugated sheeting in buildings and fencing.

One date correction worth carrying, because it is the most common error in this topic. Asbestos was not banned in 1987. That is when WA manufacturing of asbestos cement products ended. The total national ban on manufacture, use, reuse, import, transport, storage and sale came into force on 31 December 2003.

Who Is Legally Allowed To Remove It

In Western Australia a homeowner may remove 10 square metres or less of bonded, non-friable asbestos from their own home without a licence. Above that, or for any friable asbestos at any quantity, a licence is required.

WorkSafe WA issues three relevant authorisations. A Class A licence covers all types including friable asbestos. A Class B licence covers removal of more than 10 square metres of non-friable asbestos. A licensed asbestos assessor is an independent role that performs air monitoring and issues clearance certificates for Class A work.

WorkSafe's own advice for homeowners sitting under the 10 square metre threshold is still to use a licensed removalist rather than risk contaminating the house or land. On a full demolition you are almost certainly well past the threshold anyway.

A few requirements follow automatically. Licensed removalists must notify WorkSafe at least five days before starting. For residential work the removalist organises the clearance, and a clearance certificate must be issued before the premises can be reoccupied. Air monitoring is mandatory for Class A friable work; for Class B it is a risk-based decision rather than a requirement.

You can verify a removalist's licence yourself through the WorkSafe online licence search, which returns the licence number, type, status, expiry and any conditions. Scope this work early with an asbestos removal specialist

rather than discovering it once the roof is off.

What Asbestos Disposal Costs, And Why

Asbestos disposal is expensive, and the reason is not what most people assume.

Here is the counterintuitive part: asbestos-containing material is exempt from the landfill levy under regulation 5(1)(i) of the Waste Avoidance and Resource Recovery Levy Regulations 2008. The City of Rockingham confirms it charges asbestos per tonne with a landfill levy exemption applied. So the premium is not tax. It is the facility's own handling, burial and compliance cost.

Watch the trajectory, though. Red Hill's wrapped asbestos rate went from $225 a tonne in 2025-26 to $330 in 2026-27, a rise of nearly 47 per cent in one year.

Transport is another area where the common advice is wrong. Asbestos is specifically excluded from controlled waste carrier licensing and tracking requirements in WA, at any quantity. What is required is that the material be wrapped or contained so fibres cannot escape, labelled "CAUTION ASBESTOS" in letters at least 50 millimetres high, separated from other waste where practicable, and declared to the facility. And not all landfills accept it, so booking ahead is not optional. Red Hill requires contact before delivery. Millar Road requires 24 hours notice and delivery before 3pm.

The Permit, And What Your Council Actually Wants

You need a demolition permit, and the form is BA5, now listed by Building and Energy as BA05. It sits under sections 15 and 16 of the Building Act 2011.

One detail catches people out: the application must be signed by each owner of the land and by the person who proposes to be named as the demolition contractor. You cannot lodge it alone before you have chosen your contractor.

The determination period is 10 business days under section 23(2) of the Building Act. Worth knowing what happens if that lapses: the application is taken to have been refused, and the permit authority must refund your fee, recoverable as a debt.

Be careful with the figure you see elsewhere. Some guides quote 25 business days, but that is the period for uncertified building permit applications, not demolition.

There Is No Statewide Checklist

Beyond the signatures, fee and levy, everything else is set by your local government, and the variation is substantial.

The City of Perth requires an approved Construction and Demolition Management Plan before the permit can issue, plus noise and vibration management plans, dilapidation surveys of adjoining buildings, a contaminated site assessment and a rodent baiting certificate. The City of Joondalup wants written completion certificates from the service contractors who did the disconnections. The City of Gosnells wants evidence that service providers were notified and the building was baited for rodents. The City of Vincent requires septic tanks to be decommissioned and filled with clean sand or removed.

Rodent baiting by a licensed pest controller, typically at least 14 days before works, appears on most Perth council lists and surprises almost everyone.

For the disconnection paperwork, you will need a licensed electrician

for the power isolation and a licensed plumber

for the sewer, since Water Corporation does not do sewer disconnection itself.

One warning about council documents. Several Perth council demolition information sheets still cite the Occupational Safety and Health Regulations 1996, which were repealed when WA's Work Health and Safety laws commenced on 31 March 2022. At least one, last reviewed in October 2025, still refers to a gas provider that no longer trades under that name. Check the date on anything you are relying on.

The Licensing Gap Nobody Talks About

This one is genuinely surprising, and it is verifiable from WorkSafe's own scope-of-work page.

A WA demolition licence covers demolition or dismantling of a structure 2 metres or higher which is not a single storey dwelling, or a fence or wall 1.8 metres or higher. Class 1 covers structures 10 metres or more, explosives, tilt-up precast and similar. Class 2 covers structures under 10 metres, again excluding single storey dwellings.

Read that twice. Demolishing a standard single-storey Perth house does not, of itself, require a demolition licence. A two-storey house does, as Class 2 work.

That does not mean anything goes. Work health and safety duties apply regardless, asbestos rules apply regardless, and demolition of a load-bearing element is high risk construction work requiring a safe work method statement. But the licence you might assume sits behind the person driving the excavator may not exist.

Note also that demolition is not a high risk work licence class. Those cover dogging, rigging, scaffolding, cranes, elevating work platforms, forklifts, hoists and pressure equipment. Your crew may need several of them without anyone holding a demolition licence at all.

Where a demolition licence does apply, notification is required: five working days before Class 1 or Class 2 work done in accordance with AS 2601, ten working days where an approval application is needed instead, and fifteen where explosives are involved.

You can check any of this on the WorkSafe online licence search before you sign.

Can Your Council Stop You?

Usually no. Sometimes absolutely. The distinction is precise and almost always reported incorrectly.

The default position is that demolishing a single house needs no development approval. Clause 61 of the deemed provisions in the Planning and Development (Local Planning Schemes) Regulations 2015 exempts demolition or removal of a single house, ancillary dwelling, outbuilding, boundary wall, patio, pergola, verandah, deck, garage, carport, swimming pool and shade sails, on one condition: the works are not located in a heritage-protected place.

That condition does a lot of work. A heritage-protected place includes a property on the State Register, one on the local government's heritage list, and, critically, one that sits within a designated heritage area even if it is not individually listed at all.

So the question for your block is not whether your house is heritage listed. It is which of these three situations you are in.

On the heritage list, or inside a designated heritage area. The exemption falls away. Development approval is required for the demolition and it can be refused. The City of Stirling's Heritage Protection Area covering Mount Lawley, Menora and Inglewood works exactly this way, and the City states that a development application is required for demolitions on heritage listed properties or properties within it.

In a character retention area only, not on the heritage list. The clause 61 exemption still applies and no development approval is needed for the demolition itself. The City of Vincent's own character area policy concedes this in a footnote, acknowledging that the regulations do not require a development application for the demolition of a single house. The character controls then bite on what you build next, through the application for the replacement dwelling.

On the local heritage survey only. This is the one that causes the most unnecessary panic. Every WA local government must carry out a local heritage survey under section 103 of the Heritage Act 2018, but the Department of Planning, Lands and Heritage states plainly that the survey has no direct statutory role and should not be used as the basis for decision-making on development proposals. That function belongs to the heritage list or a heritage area. Being on the survey is not, by itself, a demolition control.

For State Registered places, the decision-maker must refer the proposal to the Heritage Council for advice, but the Heritage Council advises. The local government or the WA Planning Commission decides.

Worth checking your address against your council's heritage list and heritage area maps before you spend anything on design.

What A Complete Quote Should Cover

Ask every contractor to price the same scope, or the numbers mean nothing.

Specify the machine sizes and the method, because access determines both. Specify bin classes and quantities. Specify the tip destination and haul distance, since a $74 a tonne gap between facilities is real money across thirty or forty tonnes. Specify whether site clearance runs to a clean scrape at subgrade, and whether garden walls, paving, tanks and slabs are in or out.

Ask for asbestos to be scoped explicitly, either as a surveyed allowance or as a provisional sum with a rate, and ask who holds the licence and what class.

Ask about temporary fencing

and whether debris mesh and gates are included, and who is responsible for the verge permit.

Confirm public liability insurance. It is not a legal requirement for a WA demolition permit, which is precisely why you should insist on it rather than assume it.

And ask for disposal dockets by waste class plus a completion certificate at hand-back, because your builder will want them.

If a trimmed and compacted pad is needed straight after, book bobcat and earthworks

in the same window rather than leaving a gap. If you are going straight to a rebuild, line up building contractors

early, since the two programmes need to meet.

Frequently Asked Questions

These come up most often once people get past the headline number.

How Much Does It Cost To Demolish A House In Perth?

No independent body publishes a benchmark, so treat any single average with caution. What you can verify is the components: a $121 permit fee, a $61.65 minimum building services levy, a 0.2 per cent training fund levy, $571.43 to abolish the electricity supply, $1,332.92 to disconnect water, and tipping at $205 to $291 a tonne depending on the facility and how well the load is sorted. Asbestos, difficult access and a two-storey structure move the total materially.

Do You Need A Permit To Demolish A House In WA?

Yes. A demolition permit on form BA5 under the Building Act 2011, determined within 10 business days. It must be signed by every owner of the land and by the demolition contractor, so you need your contractor chosen before you lodge. If the permit authority does not decide in time, the application is taken to be refused and your fee must be refunded.

Can A Homeowner Remove Asbestos Themselves In WA?

Up to 10 square metres of bonded, non-friable asbestos from their own home, without a licence. Friable asbestos always requires a Class A licensed removalist regardless of quantity. On a whole-house demolition you are well beyond the threshold, and WorkSafe's advice even under it is to use a licensed removalist.

Can A Council Refuse To Let You Demolish Your House?

Only if the property is a heritage-protected place, meaning it is on the State Register, on the council's heritage list, or inside a designated heritage area. In a character retention area alone, the demolition itself remains exempt from development approval, though the replacement dwelling will be assessed. Being on a local heritage survey is not by itself a control.

How Long Does A House Demolition Take?

The on-site work is short, commonly a few days for a standard house plus haul-out. The approvals and disconnections are what set the timeline. Allow 10 business days for the permit, up to 5 business days for electricity abolishment, five days notice for licensed asbestos removal, and at least 14 days for rodent baiting where your council requires it.

Is It Cheaper To Renovate Or Knock Down And Rebuild?

It depends on structure, compliance and how long you can carry two sets of costs. For scale, the ABS found that knock-down rebuilds accounted for 19.2 per cent of all dwellings approved in Australia between July 2019 and June 2025, with 15,813 dwellings in Western Australia, and 59.3 per cent of WA projects replacing one dwelling with one dwelling. Model your holding costs and finance alongside the build, not just the demolition.

Compare Demolition Contractors With Trade Heroes

The best thing you can do before spending anything is check three things about your own block: the build date, so you know your asbestos likelihood; your council's heritage list and heritage area maps, so you know whether demolition needs approval at all; and the tipping rates at the facilities nearest you, so you can read a quote properly.

Then put the same written scope in front of several contractors and compare what comes back, line by line, on machine sizes, bin classes, haul destination, asbestos allowance and hand-back standard.

Trade Heroes is a directory. We list demolition contractors and the related trades by category and location so you can compare them and contact them directly. We do not demolish houses, we do not price them, and we do not take a cut of the job.

Use the links above for asbestos removal, skip bins, fencing, earthworks, electricians, plumbers and builders, and go into those conversations knowing which parts of the quote are fixed by regulation and which are genuinely up for discussion.