Knock Down Rebuild Melbourne Planning Guide
A knock down rebuild can look simple from the street: remove the old house, build the new one, move back in. In Melbourne, the planning behind it is often the part that decides whether the project feels controlled or chaotic.
The appeal is clear. You keep the location, neighbours, school zones, transport links and familiar routines. At the same time, you get a home designed for modern living, better energy performance, safer wiring and plumbing, and a floor plan that suits the way people live now.
The catch is that every block has rules. Some are obvious, such as lot size and setbacks. Others sit quietly on the title or in council planning controls. A smart plan starts before the demolition quote, before the builder’s tender, and well before anyone books a machine.
This guide gives a practical path through the main decisions, permits and risks involved in a knock down rebuild in Melbourne. It is general information only, so confirm the details with your council, builder, building surveyor or planning consultant before making decisions.
Start with the block, not the house design
The most common mistake is falling in love with a house design before checking whether the site can take it. In Melbourne, two blocks with the same frontage can have very different planning limits.
Before you choose a design, gather the basic site facts.
Check the property title for:
Easements
These can limit where you place footings, garages, pools, water tanks or outdoor structures.
Covenants
Older subdivisions may include restrictions on materials, number of dwellings or building types.
Section 173 agreements
These are legal agreements with council that can affect land use or development.
Lot boundaries
Do not rely on old fences. A feature survey can show what is actually on the land.
Then check the planning controls through the Victorian planning system or your local council. Key items include zoning, overlays and neighbourhood character rules.
Common overlays in Melbourne include:
Planning control | Why it matters |
Heritage overlay | May stop or limit demolition, or control the visible design of the new home |
Significant landscape overlay | Can affect tree removal and siting |
Vegetation protection overlay | May require permission to remove certain trees |
Special building overlay | Can relate to flood risk and finished floor levels |
Design and development overlay | May set height, setback or design rules |
A standard suburban block may still need careful design if it has a sloping site, a narrow frontage, large neighbouring trees, drainage issues or a shared driveway.
Work out whether you need a planning permit
Many single-home rebuilds in Melbourne do not need a planning permit if they meet the rules for the zone and overlays. But “single home” does not automatically mean “no planning permit”.
You may need one if the site has an overlay, if the proposal varies a planning control, or if the design raises issues around neighbourhood character, height, site coverage, overlooking, overshadowing or tree removal.
A planning permit is separate from a building permit.
A simple way to think about it is:
Planning permit
Council checks whether the development is an acceptable use and design for that site.
Building permit
A registered building surveyor checks whether the building work meets the Building Code of Australia and relevant building regulations.
Some projects need both. Some only need a building permit. Demolition can also require its own approvals and checks, even where the new build is fairly straightforward.
If a planning permit is needed, allow time for documents, council assessment, possible requests for more information and neighbour notification where required. The process can be manageable, but it is rarely improved by rushing.
Build a realistic project timeline
A knock down rebuild has more stages than a new home on a clean vacant block. The existing house adds work before construction can start.
A typical sequence looks like this:
Initial feasibility
Review title, overlays, budget range, site conditions and likely approval pathway.
Survey and soil testing
Arrange a feature and level survey, soil test and any required arborist or engineering reports.
Concept design
Choose or customise a design that suits the land, orientation, slope and council controls.
Planning permit if needed
Prepare drawings and documents for council assessment.
Demolition preparation
Disconnect services, arrange demolition approval and complete required safety checks.
Demolition and site clearing
Remove the existing home, clear debris and prepare for the new build.
Building permit
Finalise construction drawings, engineering, energy rating and specifications.
Construction
Build the new home, manage inspections and respond to site conditions.
Handover and occupancy
Complete final checks, certificates, defects list and move-in planning.
In real life, some tasks overlap. A good builder or project team will map the dependencies early so one delayed item does not stop the entire job.
Check services before demolition day
Service disconnections can become a surprise bottleneck. Demolition cannot safely begin while power, gas, water, sewer or telecommunications services remain live in the wrong way.
Common pre-demolition tasks include:
Electricity abolishment or disconnection
Gas abolishment if connected
Water meter and sewer capping arrangements
NBN or telecommunications disconnection
Temporary fencing
Asset protection permit, where required by council
Rodent treatment, commonly requested before demolition
Asbestos inspection and safe removal if present
Older Melbourne homes may contain asbestos in eaves, bathrooms, laundries, wall sheeting, roofing, garages or sheds. If asbestos is present, it must be handled by appropriately licensed professionals. Do not treat it as a minor clean-up item.
Neighbouring properties also matter. Demolition can affect shared fences, driveways, trees, stormwater and footpaths. Tell neighbours early, keep access clear where possible, and document existing conditions with photos.
Budget beyond the advertised build price
Display home prices are useful for comparison, but a knock down rebuild budget needs more than the base build figure.
Allow for costs linked to the old house, the land and the approval process. These can include:
Cost area | What it may include |
Site investigations | Soil test, survey, engineering, arborist report or flood advice |
Authority costs | Permits, council fees, asset protection and inspections |
Demolition | House removal, asbestos handling, tipping fees and site clearing |
Service works | Disconnections, abolishments, reconnections and upgrades |
Site costs | Slab design, retaining walls, drainage, rock removal or fill |
Design changes | Facade changes, structural changes or permit-driven amendments |
Temporary living | Rent, storage, moving, insurance and mail redirection |
External works | Driveway, fencing, landscaping, paths, decks and letterbox |
The risk is not just running out of money. A tight allowance can force poor decisions late in the project, when changes cost more and options are fewer.
Build a contingency into the budget. The right amount depends on the site and contract type, but the principle is simple: older homes and complex sites can reveal problems once demolition starts.
Design for Melbourne conditions
Good rebuild design is not only about street appeal. It should respond to Melbourne’s climate, block orientation and daily use.
A north-facing living area can improve natural light and comfort. Well-placed eaves, insulation, glazing and ventilation can reduce reliance on heating and cooling. On tight suburban blocks, window placement needs to protect privacy while still bringing in daylight.
Design choices to settle early include:
Single-storey or double-storey form
Garage position and driveway gradient
Private open space location
Main bedroom position
Work-from-home or study needs
Storage for bikes, bins and garden equipment
Future access needs, such as step-free entries
Solar panel placement and battery readiness
Rainwater tank placement, if required or desired
Heating, cooling and hot water systems
The planning stage is also the best time to think about waste. Demolishing a home produces a lot of material. Ask how the demolition contractor handles bricks, timber, metals, concrete and fixtures. Some materials may be recyclable or salvageable, depending on condition and local options.
Choose the right builder and contract path
Some builders specialise in knock down rebuild projects. That experience can make a real difference because they understand demolition timing, temporary services, council requirements and the unknowns that come with established suburbs.
When comparing builders, look beyond the display home.
Ask about:
Recent knock down rebuild projects in similar suburbs
Experience with your council area
Standard inclusions and common exclusions
Site cost allowances and how they are calculated
What happens if rock, poor soil or old footings are found
Demolition coordination
Communication process during approvals and construction
Contract type and variation process
Warranty and defect handling
Do not assume the cheapest quote is the best value. A lower price can simply mean more exclusions, smaller allowances or less site-specific detail.
A clear quote should make it easy to see what is included, what is provisional and what is excluded. If a line item is vague, ask for it to be clarified before signing.
Plan the move-out and living arrangements early
A knock down rebuild means the existing home disappears, so living arrangements need careful planning. Renting nearby can keep school and work routines stable, but availability and lease timing may not match the build program.
Think through:
Where household goods will be stored
Whether pets are allowed in temporary accommodation
Mail redirection and council rates notices
Insurance changes once the old home is empty
Garden equipment, trailers or boats
School travel and public transport access
Time between demolition and construction start
There may be a gap between moving out and demolition. There may also be a gap between demolition and construction if approvals, weather, finance or documentation take longer than expected. Plan for some flexibility.
Keep neighbours and council on side
Rebuild projects happen in established streets where people already live close to the work. A little care early can reduce complaints later.
Before demolition or construction starts, confirm council rules around working hours, truck access, nature strip protection, parking and waste. Many councils also require asset protection measures to cover footpaths, kerbs, drains and street trees.
Good neighbour habits include:
Share the expected start date
Provide a builder or site contact if appropriate
Keep fencing secure
Control dust and debris
Avoid blocking driveways
Deal with stormwater run-off properly
Protect shared fences and boundary structures
Builders are used to site rules, but owners still carry an interest in how the project affects the street. Poor site management can create tension that lasts long after handover.
Know the red flags before signing
A knock down rebuild contract is a major commitment. Slow down if any of these appear:
Pressure to sign before site checks are done
No clear answer on planning permit requirements
Vague site cost allowances
Exclusions hidden in fine print
No process for variations
Unclear demolition responsibility
No written timeline for key stages
Reluctance to explain technical terms
A design that ignores overlays, slope or neighbouring properties
The best projects usually have fewer surprises because the hard questions were asked early. A strong team will not mind detailed questions. They will expect them.
A practical pre-start checklist
Before demolition begins, aim to have these items under control:
Current copy of title and plan of subdivision
Planning advice from council or a qualified consultant
Feature and level survey
Soil test
Preliminary engineering advice where needed
Tree and vegetation checks
Service disconnection plan
Demolition contractor booked
Asbestos assessment completed
Temporary fencing arranged
Asset protection permit checked
Building contract reviewed
Temporary accommodation confirmed
Finance and insurance checked
Neighbour communication planned
This checklist will not cover every site, but it gives the project a safer base. The Knock Down Rebuild Melbourne Planning Guide approach is all about reducing unknowns before they become expensive.
The best rebuilds are planned before the old house comes down
A knock down rebuild can give an established Melbourne block a long new life. The location stays, but the home can change completely.
The planning work is what protects that opportunity. Check the title. Understand council controls. Confirm whether a planning permit is needed. Price the whole project, not just the build. Treat demolition as a regulated stage, not a quick clean-up. Choose a builder who knows established-site work.
If the early answers are clear, the rest of the project has a much better chance of staying on track. The old house may come down in a day or two, but the success of the new one is decided well before that.
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