Site Preparation After Demolition: What Happens Before Your New Build Starts

Most homeowners think of a knock-down rebuild as two clean phases — the old house comes down, then the new house goes up. Demolition crew clocks off, builder rolls in the next morning, slab gets poured by the end of the week.

The reality on virtually every Melbourne site is messier and more interesting. Between the last truck of demolition rubble leaving and the first concrete pump arriving, there’s a window of work — sometimes a few days, sometimes a few weeks — where the block is being readied for a structure that doesn’t exist yet. This is site preparation after demolition, and it’s one of the most under-explained stages of a knock-down rebuild.

It’s also where the cheap, sloppy operators leave their fingerprints. We see it constantly: a “demolished” block that’s actually been graded with contaminated fill, footings that were buried instead of removed, soil that was never tested before the slab went in. Six months into the new build, the homeowner is the one paying for it.

As a fully licensed Melbourne demolition company with Class B (non-friable) asbestos removal capability, we hand over dozens of cleared blocks every year — to builders, to owner-builders, and to clients who change builders mid-project. This guide is the plain-English version of what should happen on your block between the day the last wall falls and the day your new build properly starts.

Quick answer: Site preparation after demolition is the bridge between a cleared block and a build-ready site. In Melbourne, it typically covers six things: (1) full slab and footing removal, (2) clean lawful disposal of all rubble and reportable priority waste, (3) the asbestos clearance certificate issued by an independent licensed assessor where ACM was present, (4) site grading to a level agreed with your builder, (5) soil testing and (where required) contaminated-soil management — particularly the top ~100 mm on any site where non-friable asbestos was disturbed, and (6) handover documentation to the builder, surveyor and council. For a non-heritage suburban block this stage takes 3–10 days; for fire-damaged or contaminated sites, 2–4 weeks or more. The waste levy alone — $167.90 per tonne in metropolitan Melbourne from 1 July 2025 — means cutting corners on disposal is no longer a viable shortcut.

Why “Site Preparation” Is Its Own Stage (Not an Afterthought)

The handover gap between demolition and new build is where the most expensive mistakes in residential construction quietly happen. A few of the recurring ones:

Buried footings. The visible house came down, but the old strip footings, pier holes, slab edges and fence post concrete are still in the ground. Your builder hits them when excavating for new footings — and the variation invoice arrives a fortnight later.
Mystery fill. Demolition rubble pushed across the block as “levelling material” instead of being removed. A geotechnical report on the new build later flags it as uncontrolled fill, and the slab design has to change — usually to a more expensive raft or pier-and-beam system.
Asbestos-contaminated soil. Non-friable ACM that was broken (deliberately or accidentally) during demolition contaminates the surrounding topsoil with fibres. Without a clean-up, those fibres get spread further during slab excavation. The first person to find out is often the new build’s site supervisor when an EPA inspector turns up.
No clearance certificate. The builder won’t start without one on sites where ACM was present, and a missing or invalid certificate sends the project back weeks while an independent licensed assessor is re-engaged.
Re-pegging never done. Original survey pegs were destroyed during demolition (they almost always are), but no one re-established them before the builder arrived. That’s a small day-rate for a registered surveyor turning into a meaningful program delay.

None of these are exotic problems. They’re the bread-and-butter cost overruns we see when site preparation is treated as “tidying up” rather than its own discrete stage with its own deliverables.

If you’ve already read our 7-step residential demolition walkthrough, this guide zooms into Step 7 and what sits at the seam between Step 7 and your builder’s Day 1. If you haven’t, that walkthrough is the broader context for everything below.

What a “Build-Ready” Block Actually Looks Like

Before we get into the work, it helps to define the deliverable. A properly prepared site after demolition in Melbourne should be:

Completely cleared of all structures, slabs, footings, fence post concrete, stumps, sheds, septic systems, fuel tanks, and old paved areas to a depth agreed with the builder
Free of demolition rubble — every truckload of brick, concrete, timber, plasterboard, metal, tile and mixed waste removed and tipped at an EPA-authorised facility, with weighbridge dockets retained
Free of asbestos contamination — with an asbestos clearance certificate issued by an independent licensed assessor where ACM was present
Graded to the agreed level — usually a slight fall away from where the new slab will sit, never higher than the surrounding kerb without specific drainage design
Free of contaminated soil — or, where contamination has been identified, with the affected material removed under EPA Waste Tracker and disposal documented
Geotechnically known — soil testing complete or arranged, with results in the new build’s engineering design pack
Re-pegged or surveyed so the builder’s setout has reliable reference points
Properly fenced if the block will sit empty between demolition and build start, with sediment and stormwater controls intact
Documented with a complete handover pack including building permit, Section 29A consent, asbestos register and clearance certificate, EPA Waste Tracker records, weighbridge dockets, asset protection final inspection report, and contractor public liability certificate

If your demolition contractor’s scope ends at “the house is gone”, you’re not at handover yet. You’re somewhere in the middle of Step 7.

The Six Stages of Site Preparation After Demolition

Here’s what actually happens — in order — between the last wall coming down and the first new footing being dug.

Stage 1: Full Slab and Footing Removal (Not Just the House)

A common shortcut on cheap demolitions is “house only” — the visible structure comes down, the rubble is loaded out, and anything below ground level stays where it is. That includes:

The existing concrete slab (if not already removed during demolition)
Strip footings running around the original perimeter walls
Pier holes with cured concrete plugs from the original construction
Old fence post stubs filled with concrete
Buried garden infrastructure — old garden walls, paving slabs, brick BBQs, retaining walls
Septic systems, soak pits, grease traps and absorption trenches on older or formerly unsewered properties
Underground oil tanks, fuel tanks and disused service pits — particularly common on properties built between 1940 and 1980

A compliant Melbourne demolition removes all of this. The slab is broken out (usually with a 13-tonne or larger excavator running a hydraulic hammer or pulveriser), rebar is separated for scrap, clean concrete is stockpiled for crushing into recycled aggregate, and footings are excavated to clear depth. Old fence post concrete is dug out and removed — not buried under graded fill.

⚠️ Common trap: Quotes that include “slab removal” but not “footings and pier removal” sound similar but aren’t. Footings sit below the slab and often go to 600–900 mm depth on older Melbourne homes. Pier-and-beam houses (common in 1920s–1950s weatherboards in Northcote, Coburg, Yarraville, Brunswick) have stumps that go even deeper. A properly worded demolition scope says “all structural elements above and below ground line, to depth as required for new footing design”.

Stage 2: Material Segregation and Lawful Disposal

This is the EPA-regulated piece, and in 2026 it’s the most expensive line item in most demolitions. The metropolitan waste levy stepped up to $167.90 per tonne from 1 July 2025 — a roughly 28% jump in a single year — and it’s scheduled to rise again under the Act’s fee-unit indexation.

The full waste-side picture is in our EPA Victoria Construction and Demolition Waste Rules guide, but the headline rule is simple: every load leaving site has to go to a lawful place, by an authorised transporter, with the right paperwork.

In practice that means streams are separated on the ground:

Clean concrete and brick — stockpiled separately and sent to crushing facilities to be reused as recycled aggregate. This is the single largest stream by weight on most demolitions.
Steel and metals — separated from rebar in the slab, roof sheeting, plumbing and structural members; sent to scrap recovery.
Clean timber — segregated where viable; some goes to recycling, some unfortunately still goes to landfill.
Mixed unrecoverable waste — only what can’t be salvaged or recycled goes to general landfill, attracting the full levy.
Reportable priority waste (RPW) — asbestos, contaminated soil, lead-painted material, certain fluorescent ballasts. These are pre-classified under Schedule 5 of the Environment Protection Regulations 2021, must be transported by an A10a or A10b permission holder, and tracked through EPA Waste Tracker every time they change hands.

A good Melbourne demolition contractor diverts 80–90% of clean C&D waste from landfill. If your quote shows a single mixed-bin tipping line and nothing else, it’s either overpriced (you’re paying full levy on every tonne) or someone’s planning to dispose somewhere unlawful. Both are bad outcomes.

Stage 3: Asbestos Clearance (Where ACM Was Present)

If your house was built before 2003 — and most Melbourne homes were — there’s a high probability it contained asbestos somewhere. Eaves, cement-sheet cladding, fibro fences, vinyl floor tiles, electrical backing boards, old bathroom and laundry walls, roof flashing — these are all common ACM hot spots in Victorian residential stock, and they’re handled before structural demolition by a Class B licensed asbestos removalist (for non-friable, bonded material) or a Class A licensed removalist (for friable, fire-damaged or degraded material).

The full WorkSafe-side picture is in our WorkSafe Victoria Demolition Requirements guide.

What matters at the site preparation stage is the asbestos clearance certificate — a formal document issued by an independent licensed assessor (not the removalist who did the work) confirming the area where asbestos was removed is free of asbestos contamination.

This certificate is required before any further works on a site where ACM was present. Your builder’s site supervisor will ask for it on day one. Your Registered Building Surveyor will check for it. Future buyers’ conveyancers will look for it during settlement on the rebuilt property. It becomes part of the property’s permanent record.

We provide the clearance certificate as part of every project handover where ACM was present, in both physical and digital form, and we recommend keeping it for a minimum of 5 years.

Stage 4: Site Grading to the Agreed Level

Once everything has been removed and disposed of lawfully, the site is graded — that is, brought to a consistent level appropriate for the next stage of works.

“Appropriate” is the operative word. Builders disagree about what the perfect handover level is, and it depends on:

The new slab type — a waffle pod slab needs a different starting point than a stiffened raft or pier-and-beam
The natural site fall — Melbourne sites range from dead flat (most growth-corridor estates in Tarneit, Cranbourne, Pakenham) to significantly sloped (parts of Eltham, Warrandyte, Templestowe, Mt Eliza)
Drainage requirements — water has to fall away from the eventual slab, not toward it
Cut-and-fill design — some new homes are designed with substantial cut on the high side and fill on the low side
Easements and existing services — stormwater pits, sewer connections and water mains have to be visible and accessible

The right answer is to talk to the builder before grading, not during. A good demolition contractor will ask for the engineering plans and the proposed Finished Floor Level (FFL) before arriving on site, and will leave the block at a level that matches the builder’s preferred starting point.

⚠️ Common trap: “Levelled” is not a technical specification. If the demolition scope says “site graded and levelled” without reference to a survey level or FFL, you’re trusting the operator’s judgement. Get the level specified in writing — even something as simple as “graded to within ±50 mm of the existing kerb level, with consistent fall of 1:100 toward the front boundary” is enormously more useful than “levelled”.

The work itself is usually done with the same excavator that did the demolition, plus a smooth-drum roller or vibrating plate for compaction passes if the surface needs to support traffic before slab works begin.

Stage 5: Soil Testing, Contamination Assessment and Geotechnical Investigation

This is the stage that separates good demolitions from great ones — and it’s where the rebuild really starts.

Three different types of “soil work” can happen at this stage, and they’re often confused:

5a. Asbestos-Contaminated Soil Management

If non-friable asbestos was broken on site at any point during the demolition — even in a small way — or if the property had a previous fire, the surrounding soil can be contaminated with airborne fibres that have settled. EPA Victoria guidance generally requires the top ~100 mm of soil in the affected area to be removed and managed as asbestos-contaminated soil, itself a reportable priority waste under Schedule 5.

This material:

Cannot be used as backfill on the new build
Cannot go to a regular C&D recycler
Cannot be quietly pushed across the block as “levelling fill”
Must be transported by an A10a or A10b permission holder
Must be tracked through Waste Tracker
Must be disposed at a landfill specifically authorised to receive asbestos waste

A licensed removalist scrapes the affected zone, double-wraps the material in 200 µm polythene where applicable, and arranges Waste Tracker disposal. The cleared soil zone is then validated by an independent licensed assessor as part of the broader asbestos clearance certificate.

The same principle applies — only more so — to fire-damaged properties, where heat has often turned previously bonded ACM into friable material and contaminated a wider footprint of soil. Bushfire-affected properties in the Yarra Ranges, Macedon Ranges and Mornington Peninsula commonly trigger Class A asbestos removal and extended contaminated-soil management.

5b. Site Contamination Assessment (Non-Asbestos)

Some Melbourne sites carry contamination risks that have nothing to do with the demolished house. The big categories:

Former service stations and mechanic workshops — hydrocarbon contamination from underground fuel tanks, oil staining, leaking lubricant drums
Former dry cleaners — chlorinated solvents (PCE, TCE) in soil and groundwater
Former market gardens — pesticide residues, particularly on properties in Heatherton, Springvale South, Keysborough, parts of Werribee South
Former industrial sites — heavy metals, solvents, prescribed industrial waste in fill
Filled land — anything from clean construction fill to dumped rubbish, asbestos and prescribed waste from earlier industrial eras
Properties on or near former tip sites — methane, leachate, mixed contamination

If your block falls into any of these categories — or if the VicPlan property report or historic aerial imagery suggests it might — a Phase 1 Environmental Site Assessment (ESA) is the standard starting point. Where Phase 1 flags risks, a Phase 2 ESA with intrusive sampling follows. The findings dictate whether the site can be built on as-is, requires soil remediation, or needs a more substantial environmental audit (in serious cases under the Environment Protection Act 2017).

This is rarely the demolition contractor’s scope — it’s an environmental consultant’s job — but a good demolition company will flag the risk during the site inspection, especially on industrial-to-residential conversions in Yarraville, Seddon, Footscray, Brunswick, Collingwood and Cremorne.

5c. Geotechnical Investigation for the New Build

Geotech is different again. This is the soil testing required by the structural engineer for the new build’s slab and footing design — and it has to be done on the cleared block, not the still-occupied one.

A typical residential geotech report covers:

Soil classification under AS 2870 (Class A, S, M, H1, H2, E, P) — Melbourne is dominated by reactive clay sites, mostly Class M to H2, with Class P (problem sites) on filled or unstable land
Bearing capacity at the planned footing depths
Reactivity — how much the soil shrinks and swells with moisture
Recommendations on slab type, edge beam depths, pier requirements
Identification of fill versus natural ground, and depth of any fill encountered

The geotech is typically done by a registered geotechnical engineer with a small drilling rig — usually 2–4 boreholes for a standard residential block, taken to depths of 2–4 metres. It generally happens after slab and footing removal but before the builder’s setout — that is, squarely in the site preparation window.

A common cost-saving mistake: getting geotech done before demolition, while the old slab and fill are still in place. The borehole results in that case are unreliable for the new build because they sample soil that’s about to be disturbed. Get geotech done on a cleared block.

Stage 6: Re-Pegging, Setout and Documentation Handover

The final stage of site preparation is the handover to the builder. Three pieces matter here.

Re-pegging. Original survey pegs are almost always destroyed during demolition — they’re tiny wooden or steel pegs sitting at boundary corners and reference points. A registered surveyor needs to come back out and re-establish them on the cleared block before the builder can do their setout. This is a small line item but a real one, and it can take 1–2 weeks to schedule depending on the surveyor’s workload.

Setout coordination. Many builders do their own setout from re-established pegs, but on tighter sites — and especially where the new build is close to the boundary — the demolition contractor and builder will overlap on site for a brief walkthrough before handover. Easements, sewer connection points, neighbour fences and stormwater pits get walked and pointed out.

Documentation handover. This is the deliverable that protects you for years after the build. A complete handover pack includes:

The building permit for demolition and Section 29A consent
The asset protection permit and final inspection report (cleared)
The asbestos register and survey report
The WorkSafe asbestos removal notification confirmation
The asbestos clearance certificate issued by the independent licensed assessor
EPA Waste Tracker records for every reportable priority waste movement
Weighbridge dockets and disposal receipts for every load
Service disconnection certificates (electricity, gas, water, telecoms)
The contractor’s public liability insurance certificate
Any soil contamination assessment results, where applicable
Photographs of the cleared block from each elevation

We hand this across in physical and digital form. We recommend keeping it for a minimum of 5 years — the conveyancers, builders and careful future buyers who’ll look for it later will find it because we made it findable.

Site Preparation Across Melbourne: Suburb-Specific Notes

The six-stage rhythm is broadly the same across the city, but the details shift meaningfully depending on where your block sits.

Inner-City (Fitzroy, Carlton, Collingwood, Richmond, North Melbourne, South Melbourne, South Yarra, Prahran, Windsor)

Tight access changes everything. Smaller plant means slab and footing removal often takes longer than the demolition itself. Old terraces with shared boundary walls leave behind party-wall masonry that has to be carefully cut and made good — not bulldozed. Bluestone foundations are common on pre-1900 cottages and need specific handling for either retention or removal. Council noise restrictions (typically no construction before 7:00 AM weekdays, none before 9:00 AM Saturdays, none Sundays or public holidays) mean shorter working days. Re-pegging is often more involved because of the narrower frontages and tighter setbacks.

Inner-East and Heritage-Heavy Suburbs (Hawthorn, Camberwell, Kew, Toorak, Malvern, Armadale, Brighton, Williamstown, parts of Fitzroy and Carlton)

Site preparation on heritage-affected blocks is shaped by what was retained. If a facade has been retained behind temporary propping, the cleared block has a structure standing in the middle of it that has to be protected through every site preparation stage. Original bluestone footings, old brick footings and substantial garden infrastructure are common. Geotechnical work has to navigate the retained structure. These projects routinely take 2–4 weeks longer at the site preparation stage than non-heritage equivalents.

Western Growth Corridor (Wyndham, Brimbank, Melton — Werribee, Point Cook, Hoppers Crossing, Tarneit, Truganina, Sunshine, St Albans, Caroline Springs)

Generally the most straightforward site preparation pathway in metropolitan Melbourne. Most blocks are post-1990 with simple slab-on-ground construction, no heritage, no major contamination. The big issues are reactive clay soils (Class M to H2 is typical, sometimes H2 with deep desiccation in older estates) and the practical reality that growth-corridor builders move fast — site preparation often runs to a tighter handover deadline than in the established suburbs. Older suburbs in Brimbank (Sunshine, St Albans) have substantial 1950s–1970s asbestos cement housing stock and benefit from explicit asbestos contaminated-soil assessment.

Northern Suburbs (Banyule, Whittlesea, Nillumbik, Hume — Heidelberg, Bundoora, Greensborough, Ivanhoe, Mill Park, Epping, South Morang, Eltham, Diamond Creek, Hurstbridge, Broadmeadows, Craigieburn, Sunbury)

Mixed character. Older Heidelberg, Ivanhoe and parts of Broadmeadows still carry 1960s housing stock with significant asbestos cement. Nillumbik adds environmental and bushfire overlays that affect vegetation protection during site preparation — even on a cleared block, certain trees can’t be touched. Eltham’s mudbrick character protection adds nothing technical to site preparation but does add timeline pressure on the upstream approvals.

Outer South-East (City of Greater Dandenong, Casey, Cardinia, Frankston, Mornington Peninsula — Dandenong, Springvale, Noble Park, Berwick, Cranbourne, Pakenham, Frankston, Mornington, Rosebud)

Greater Dandenong carries genuine industrial heritage — Dandenong South and Noble Park have a higher-than-average rate of soil contamination assessments triggered during site preparation. Casey and Cardinia are growth-corridor councils with mostly straightforward site prep, though Casey requires an asset protection permit and a security bond that’s only released after a clean final inspection — which means site preparation has to leave the kerb, footpath and nature strip in pristine condition. Mornington Peninsula is heritage-heavy and environmentally sensitive; holiday-house demolitions on the Peninsula are deceptively complex at site preparation stage, particularly around foreshore overlays.

Bayside and Coastal (Bayside, Kingston, Port Phillip — Brighton, Hampton, Sandringham, Black Rock, Beaumaris, Mentone, Mordialloc, Elwood, St Kilda)

Sandy soils dominate, which sounds simple but adds its own quirks: deeper fill is often needed to stabilise sites for slab construction, and acid sulfate soils are a real consideration on some bayside and waterfront blocks. Heritage Overlay coverage in Brighton, Hampton and parts of Elwood adds the same complexity as the inner-east. Salt-laden groundwater also affects steel reinforcement specifications in the new build’s structural design.

Yarra Ranges and Outer East (Maroondah, Knox, Yarra Ranges, Manningham — Ringwood, Croydon, Wantirna, Boronia, Lilydale, Healesville, Warrandyte, Templestowe)

Bushfire-affected sections of the Yarra Ranges may carry fire-damaged structure histories that trigger Class A asbestos removal and extended contaminated-soil management (top 100 mm or more removed across an enlarged footprint). Sloping blocks add cut-and-fill complexity that has to be coordinated with the new build’s engineering. Wildlife overlays and significant trees can affect what can be done on the cleared block while it’s awaiting build start.

If your property is in any of these areas, plan for the longer end of the site preparation range and ask your demolition contractor to flag the suburb-specific issues during the site inspection — not after the deposit has been paid.

Coordinating Site Preparation With Your Builder (and Your Project)

Site preparation is the seam between two different contractors with different incentives, and most of the friction in knock-down rebuilds comes from poor handover at exactly this stage. Three practical rules help.

Decide who owns site preparation before you sign anything. Some builders prefer to take a fully cleared, fully levelled block from a separately contracted demolition specialist. Others prefer to handle demolition through their own subcontractor and absorb site preparation into the early stages of the build. Both models work — but mixing them halfway through is where projects haemorrhage time and money. Get the answer before the demolition deposit goes through. The full picture on permit ownership is in our building permits vs demolition permits guide.

Get the engineering plans before grading. The builder’s structural engineer will have a preferred Finished Floor Level, slab type and edge beam design. Ideally those are sketched out before site preparation begins, even if the final building permit is still in train. A demolition contractor who grades a block to “level” without seeing the engineering drawings is guessing — and on most blocks that guess will be wrong.

Time geotechnical work for the cleared block. As covered above, geotech done before demolition tells you about the wrong soil. Geotech done after slab and footing removal tells you about the soil that will actually carry your house. Schedule it accordingly.

For the broader timeline picture — from contract signing to slab pour — see our demolition timeline guide for Melbourne.

What Site Preparation Actually Costs

A few realistic 2026 numbers, on top of the demolition itself:

Slab and footing removal — usually included in a properly itemised demolition quote, but worth confirming explicitly. On older heritage blocks with bluestone or substantial brick footings, expect $2,000–$6,000 above a standard quote.
Site grading — typically included in the demolition scope; allow $1,500–$4,000 if priced separately, depending on block size and the volume of cut-and-fill required.
Asbestos-contaminated soil removal — $80–$180 per cubic metre depending on contamination level, transport distance and disposal facility. A typical residential ACM-soil scrape (top 100 mm across a 200 m² affected zone) produces around 20 m³, so plan for $2,000–$4,000 on standard cases — significantly more on fire-damaged properties.
Independent asbestos clearance certificate — $400–$1,200 depending on site complexity and assessor.
Re-pegging and identification survey — $600–$1,800 for a standard residential block.
Geotechnical investigation — $1,500–$3,500 for a standard residential block with 2–4 boreholes; more for difficult access or deeper investigations.
Phase 1 Environmental Site Assessment — $2,500–$6,000, where contamination risk is flagged. Phase 2 (intrusive) is substantially more.

These line items are routinely bundled into builders’ quotes, demolition quotes or environmental consultants’ invoices in different combinations. The arithmetic isn’t the point — transparency is. A line-item-itemised scope across both contracts is the only way to verify nothing is being missed and nothing is being charged twice.

Plain-English Site Preparation Checklist (Save This)

Before you accept handover of a “cleared” block from any Melbourne demolition contractor, walk through this list:

[ ] Slab fully removed (not just the visible house)
[ ] All footings, piers and old fence post concrete removed to clear depth
[ ] Old septic system, soak pits and disused tanks removed (where present)
[ ] All demolition rubble removed from site to lawful EPA-authorised facilities
[ ] Weighbridge dockets and disposal receipts on file for every load
[ ] Asbestos clearance certificate issued by an independent licensed assessor (where ACM was present)
[ ] EPA Waste Tracker reconciled for every reportable priority waste movement
[ ] Top 100 mm of soil removed and disposed of as asbestos-contaminated soil (where ACM was disturbed)
[ ] Any non-asbestos contamination identified, assessed and managed appropriately
[ ] Site graded to a level agreed with the builder, in writing, with reference to FFL or kerb level
[ ] No buried fill, demolition rubble or uncontrolled material left across the block
[ ] Surveyor re-engaged to re-establish boundary pegs and reference marks
[ ] Geotechnical investigation arranged on the cleared block (not before demolition)
[ ] Asset protection final inspection passed and bond released
[ ] Sediment, stormwater and dust controls maintained between demolition and builder start
[ ] Temporary fencing in place if the block will sit empty for more than a few days
[ ] Full documentation pack handed to the property owner — physical and digital
[ ] Builder briefed on any site-specific issues (services, easements, fill, contamination)

If a contractor can’t tick every relevant box on this list at handover, you’re not at handover yet.

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Frequently Asked Questions

What is site preparation after demolition?

Site preparation after demolition is the bridge between a cleared block and a build-ready site. In Melbourne it covers full slab and footing removal, lawful disposal of all rubble and reportable priority waste, asbestos clearance certification (where applicable), site grading to the builder’s required level, soil testing and contaminated-soil management where needed, geotechnical investigation for the new build, re-pegging by a registered surveyor, and a complete documentation handover. It’s the work that turns a “demolished” block into a “build-ready” block.

How long does site preparation take after demolition in Melbourne?

For a non-heritage suburban block with no contamination issues, expect 3–10 days from the last truck of rubble leaving to handover. For fire-damaged or contaminated sites, 2–4 weeks or more is realistic — the additional time covers extended asbestos works, contaminated-soil scraping, environmental site assessment and re-validation. Re-pegging by an external surveyor and geotechnical investigation can each add 1–2 weeks of scheduling time, depending on workload.

Do I need to test the soil after demolition before building?

Yes — in two different senses. Your structural engineer needs a geotechnical investigation to design the new slab and footings under AS 2870, and that should be done on the cleared block (not before demolition). Separately, if the property has a contamination history — former industrial use, market garden, service station, dry cleaner, fire damage, or known asbestos disturbance — you’ll need an environmental site assessment to confirm the soil is safe to build on. The two are different reports done by different specialists.

What happens to the soil if asbestos was disturbed during demolition?

EPA Victoria guidance generally requires the top ~100 mm of soil in the affected zone to be removed and managed as asbestos-contaminated soil — itself a reportable priority waste under Schedule 5 of the Environment Protection Regulations 2021. It cannot be used as backfill, cannot go to a normal C&D recycler, and cannot be quietly graded across the block as fill. It’s transported by an A10a or A10b permission holder, tracked through Waste Tracker, and disposed at an authorised landfill. The cleared zone is then validated by an independent licensed assessor.

What is an asbestos clearance certificate and why does my builder need one?

An asbestos clearance certificate is a formal document issued by an independent licensed assessor (not the removalist who did the work) confirming the area where asbestos was removed is free of asbestos contamination. It’s required before any further works on a site where ACM was present. Your builder’s site supervisor will ask for it on day one, your Registered Building Surveyor will check for it, and future buyers’ conveyancers will look for it during settlement on the rebuilt property. It becomes part of the property’s permanent record.

Who is responsible for site preparation — the demolition contractor or the builder?

It depends on the contract. Some builders prefer to take a fully cleared, fully levelled block from a separately contracted demolition specialist; others handle demolition through their own subcontractor and absorb site preparation into the early build stages. Both models work — what matters is deciding the boundary clearly before contracts are signed, so neither contractor assumes the other is doing something. Mixed models created mid-project are the single biggest source of variation invoices on knock-down rebuilds.

Can I use the demolition rubble as fill on my new build?

Generally no — and this is where the most expensive site preparation mistakes happen. Mixed demolition rubble is uncontrolled fill under AS 3798, and a structural engineer won’t design a slab over it. Even cleanly crushed concrete can only be used as engineered fill if it’s certified, properly placed, compacted in lifts and tested. Asbestos-contaminated soil, treated timber, plasterboard with potential ACM and lead-painted material must not be used as fill under any circumstances. The EPA-compliant pathway is to remove all rubble from site, then bring back certified fill — usually clean engineered crushed rock — where the new build’s design requires it.

What is “clean fill” and how do I know if mine actually is?

“Clean fill” is soil or crushed rock that has been tested or sourced from a known clean origin and is suitable for use as engineered fill. Soil from any site with a contamination history — former service stations, dry cleaners, factories, market gardens, fire-damaged properties — should be assumed to be priority or reportable priority waste until tested. Moving “clean fill” that turns out to be contaminated is one of the most common ways small builders and owner-builders get caught by EPA Victoria. If your demolition contractor or a fill supplier can’t produce documentation showing the origin and classification of fill being delivered to your block, don’t accept it.

What documentation should I receive at the end of site preparation?

A complete handover pack includes: the building permit for demolition, Section 29A consent, asset protection permit and final inspection report, asbestos register and survey report, WorkSafe asbestos removal notification confirmation, the asbestos clearance certificate issued by the independent licensed assessor, EPA Waste Tracker records, weighbridge dockets and disposal receipts, service disconnection certificates (electricity, gas, water, telecoms), public liability insurance certificate, and any soil contamination assessment results. We provide this in both physical and digital form and recommend keeping it for a minimum of 5 years.

Does site preparation include termite treatment?

Termite treatment is usually the builder’s scope, not the demolition contractor’s, and it’s typically applied during slab preparation immediately before the pour rather than at site handover. That said, if your old structure had visible termite activity, flag it during the demolition site inspection — old termite-affected timber needs to be cleanly removed from site rather than crushed and incorporated into fill, and the surrounding soil may need additional inspection.

How do I choose a Melbourne demolition contractor who handles site preparation properly?

Look for: VBA registration in the appropriate demolition class, a Class B asbestos removal licence (or partnership with a Class A holder where required), public liability insurance at appropriate levels (with a current certificate you can sight), a fixed-price written quote that itemises slab and footing removal, asbestos clearance certificate, soil management, site grading to a defined level, and re-pegging where applicable. Ask whether they coordinate directly with builders and engineers on FFL and grading, ask for examples of recent handovers in your council area, and read our council demolition permits suburb-by-suburb overview for what should be in every quote regardless of suburb.

My block has been sitting empty for a few months between demolition and the new build starting. Is that a problem?

It can be. Cleared blocks need to be maintained: temporary fencing intact, sediment controls in place, no unauthorised dumping, no stormwater pollution, no dust generation in dry weather. EPA Victoria treats prolonged uncontrolled sites as a General Environmental Duty issue, and councils can issue notices for unsightly or unsafe land. A good demolition contractor will hand the block over with these controls in place; if the build start is going to be delayed by more than a few weeks, talk to the contractor about extending the protections.

Get Your Block Properly Build-Ready in Melbourne

We’re a fully licensed Melbourne demolition company with Class B (non-friable) asbestos removal capability — meaning your demolition, your asbestos handling, your EPA-compliant disposal, your site preparation and your handover documentation are all delivered under one insured roof, across every metropolitan Melbourne council and regional Victoria.

Whether it’s a knock-down rebuild in Brighton, a heritage strip-out and site preparation in Fitzroy, a townhouse demolition in Footscray, a fire-damaged property in the Yarra Ranges, a growth-corridor knock-down in Tarneit or Cranbourne, or a partial demolition for a major renovation in Hawthorn or Toorak, we hand over a block that’s properly cleared, properly graded, properly tested where required, and properly documented — ready for your builder to start without surprise variations, contamination findings, or missing certificates.

If you’d like to read about how the full process fits together end to end, our 7-step residential demolition walkthrough is the broader companion to this guide. The day itself is covered in our demolition day survival guide. The compliance pieces are unpacked in our WorkSafe Victoria Demolition Requirements guide and our EPA Victoria Construction and Demolition Waste Rules guide.

Call us today for a free site inspection and fixed-price quote — and get a knock-down rebuild that hits handover with the block, the paperwork and the soil all genuinely ready for your builder’s first day.

Disclaimer: This guide summarises site preparation practice after residential demolition in metropolitan Melbourne and regional Victoria as of May 2026 in plain English. It is not legal, planning or engineering advice. Council fees, EPA waste levy rates, regulations and best practice change frequently — always check the current Building Act 1993, Building Regulations 2018, Environment Protection Act 2017, Environment Protection Regulations 2021, AS 2870, AS 3798 and the relevant council planning scheme, or consult a qualified building surveyor, geotechnical engineer or environmental consultant, before relying on this information for a specific project. Fee unit values reset on 1 July each year. The metropolitan waste levy is scheduled to rise on 1 July 2026.