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DEMOLITION · RENOVATION & REBUILD

What Should Homeowners Know About Demolition Before Renovating or Rebuilding?

Demolition is part of the construction programme, not just the first day of work.

Short answer

Before demolition starts, the project team should understand exactly what is being removed, what must remain protected, how services will be managed, what permits or approvals apply, how waste and hazardous materials will be handled and how the demolition sequence connects with the new construction. Partial demolition in a renovation can be particularly sensitive because retained parts of the home must stay stable and protected.

Watch the EBC explainer

House Demolition in Melbourne | Site Preparation Progress | EBC

See an EBC demolition and site-preparation project while reviewing the checks, approvals and site considerations that should be resolved before demolition begins.

Watch full video on YouTube ↗Opens YouTube in a new tab.

Define what is being demolished and what must remain

For renovation work, demolition drawings or a clearly documented scope help separate elements to be removed from those that must be retained.

This is especially important around structural walls, roofs, services and finishes that connect old and new work.

Services need to be identified and managed

Electricity, gas, water, drainage and telecommunications may need to be isolated, protected, relocated or disconnected depending on the work.

Service planning should happen before demolition equipment and trades start opening the building.

Older homes may require additional investigation

Age and construction history can affect demolition planning. Hazardous materials or undocumented previous work may require specialist assessment and controlled removal.

If something unexpected is found, work may need to pause while the appropriate specialist advice is obtained.

Demolition sequencing affects the next construction stage

For knockdown rebuilds, demolition should be coordinated with design, approvals, finance and the new-build programme so the site is not cleared unnecessarily early.

For renovations, temporary support and weather protection may be required while parts of the existing structure remain occupied or exposed.

Planning a project like this? EBC builds home renovations, custom new homes and knockdown rebuilds across Melbourne's Eastern Suburbs, and can talk through how this applies to your home.

Questions homeowners ask

Do I need approval before demolishing a house in Victoria?+

Demolition can involve building, planning or other approval requirements depending on the property and work. Check the applicable requirements before demolition starts.

Can demolition start before the new home design is finished?+

It may be possible in some circumstances, but coordinating demolition with design, approvals and finance usually reduces the risk of leaving the site cleared while the new project remains unresolved.

Why is partial demolition more complex than it looks?+

Because retained parts of the existing home may need structural support, weather protection and service continuity while adjoining elements are removed.

What happens if hazardous material is found?+

Specialist assessment and compliant removal may be required before affected work can continue.

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EBC services Melbourne's Eastern Suburbs. View service areas.

Related EBC pages

Reviewed 14 October 2026. General information only; requirements depend on the property, proposed work and current Victorian rules.View all EBC Building Guides →