KNOCKDOWN REBUILD · MELBOURNE EASTERN SUBURBS
Knockdown Rebuild Melbourne Eastern Suburbs
Keep the location you know and replace the existing house with a home designed around how you want to live now.
Short answer
A knockdown rebuild can be a strong option when you want to stay in the same area but the existing home, structure or layout would require too many compromises. The first step is site feasibility: understand the planning controls, title, services, access and likely site conditions before committing to a design.
Start with the site, not the floor plan
A good knockdown rebuild begins with the block. The proposed home has to work with the planning scheme, title restrictions, site dimensions and physical conditions before the finishes and room layouts matter.
This early feasibility work reduces the risk of paying for a design that later needs major changes.
- ✓Planning zone, overlays and any heritage controls
- ✓Title restrictions, easements and property boundaries
- ✓Site slope, access and likely soil or retaining requirements
- ✓Existing electricity, gas, water, sewer and stormwater connections
- ✓Trees, neighbouring conditions and demolition constraints
- ✓The size, siting and form of the proposed new home
Planning permit, building permit and demolition
A planning permit and a building permit are different approvals. Planning controls deal with whether a use or development is acceptable under the planning scheme. Building approval deals with the construction work and compliance with building law and technical standards.
Not every residential project needs a planning permit, but new building and demolition work generally needs a building permit unless an exemption applies. Heritage and other planning controls can also affect whether demolition can proceed.
A practical knockdown rebuild sequence
The exact order varies by site, but the project should move from feasibility to design and approvals before demolition and construction are locked in.
- ✓Confirm the brief, budget priorities and site constraints
- ✓Develop the concept and required investigations
- ✓Confirm the planning pathway and obtain required approvals
- ✓Complete construction documentation and building permit requirements
- ✓Arrange demolition through appropriately registered practitioners
- ✓Prepare the site and commence the new-home build
- ✓Complete mandatory inspections, finishes and handover requirements
What changes the total cost?
The cost is not only the new house. Two similar-looking homes can have very different total project costs because the block and demolition conditions differ.
EBC prices from the actual scope rather than relying on a generic online allowance.
- ✓Demolition, asbestos management and site clearing
- ✓Site access, excavation, soil conditions and retaining
- ✓Service disconnections, relocations and new connections
- ✓Design, engineering, surveys and approval costs
- ✓Home size, structural complexity and specification level
- ✓External works such as driveways, drainage and landscaping
When a knockdown rebuild is worth comparing
It is worth comparing against renovation or extension when the existing structure, floor plan or level changes would make a major alteration complicated. The best decision comes from comparing the whole project rather than only the construction price.
For some homes, retaining the existing structure is clearly sensible. For others, starting again can produce a more coherent design and a cleaner construction sequence. EBC can help you compare the options around the specific property.
Questions homeowners ask
What is a knockdown rebuild?+
A knockdown rebuild means demolishing an existing dwelling and constructing a new home on the same site. It can suit homeowners who value their location but want a new layout, structure and specification rather than adapting the existing house.
Do I need a planning permit for a knockdown rebuild in Victoria?+
Sometimes. Planning requirements depend on the property, planning scheme, overlays and proposed development. A planning permit is separate from a building permit, so the correct pathway should be checked for the specific site before construction documents are finalised.
Does demolition need approval?+
Building and demolition work generally requires a building permit unless a specific exemption applies. Planning controls can also affect demolition, including heritage controls. The requirements should be checked before any demolition work is booked.
What should be checked before choosing a house design?+
Start with the title, planning controls, site dimensions, easements, slope, access, existing services, trees and likely site conditions. A design that ignores site constraints can create redesigns and avoidable cost later.
Can EBC help before I have finished plans?+
Yes. You can register the project before final plans are complete. Early discussion helps identify the information needed for feasibility, design, approvals and pricing.
Ready to discuss your project?
Tell EBC what you are planning and we will help you work through the practical next steps.
Related EBC pages
- New home building with EBC
- Renovate vs extend vs rebuild
- Planning permit vs building permit
- Register your project
Reviewed 5 October 2026. General information only; approval requirements depend on the property and proposed work.