Which is cheaper - KDR or renovation - in Melbourne?

Depends on scope. For under $300k of work, renovation almost always wins because you're not paying to rebuild the shell. For $400k-$700k of scope, they're roughly cost-neutral. Over $700k, KDR usually wins because you get a brand-new home with warranty. On average Melbourne project, renovation is 30-40% cheaper but delivers 60-70% of the outcome.

Can I stay in the house during renovation?

For under $150k of work in one part of the home - usually yes. For $150k-$400k with structural work - partial (kitchen/living out, bedrooms stay). Over $400k or with rear extension - almost never; you'll pay $18k-$45k for 6-14 months of Melbourne rental. KDR forces the same 14-22 month accommodation cost - so it's a tighter delta than most buyers assume.

Does Melbourne winter delay KDR vs renovation differently?

Yes. KDR is more weather-exposed - slab + frame stages fall in specific windows and rain delays are common (4-8 weeks in Melbourne). Renovations working inside an existing roof are much less affected. If you're time-sensitive and starting in April-July, favour renovation.

Researching·Find a Builder Cost Tracker

Decision Guide

Knockdown-Rebuild vs Renovate in Melbourne

When to demolish, when to save the shell

Melbourne's heritage overlays block full demolition on roughly 40% of inner + middle-ring blocks. When rebuild is legal, it usually beats renovation on cost past $400k of scope. When overlay makes rebuild impossible, substantial renovation is the pragmatic path. Here's the decision framework.

Knockdown-Rebuild (KDR)

Pros

Brand new home with 6-year statutory warranty
Full compliance with 2026 energy + accessibility standards
Total design flexibility - orientation, layout, spec
Cheaper than substantial reno on scopes over $400k
New DBI insurance protects deposit + shell
Modern insulation delivers 30-50% lower Melbourne heating bills
Predictable fixed-price contract with volume builder

Cons

$500,000-$1,200,000 all-in Melbourne metro
16-24 months from decision to keys
Blocked by Heritage Overlay on ~40% of inner + middle-ring blocks
Temporary accommodation cost $30k-$70k over 14-22 months
Demolition permit + planning if HO adjacent
Loss of mature garden + trees (many Melbourne blocks have significant trees)
Financing more complex (staged construction loan)

Best For

• Middle + outer-ring suburbs without heritage overlay
• 1960s-90s brick veneer / weatherboard homes past useful life
• Blocks with cracked slab, asbestos throughout, non-compliant wiring
• Owners staying 10+ years
• Families wanting specific layout not achievable via reno

Full / Substantial Renovation

Pros

Heritage character preserved (critical in inner + middle Melbourne)
Keep mature garden + trees
Faster - 8-14 months typical
Live in home (or partial) for parts of build
$300,000-$700,000 typical Melbourne full renovation
Legal option for Heritage Overlay homes where rebuild is refused
Retains original slab + framing where sound (saves $80k-$150k)

Cons

Hidden discoveries (asbestos, termites, non-compliant wiring) add 15-30%
Complex sequencing - trade coordination harder than new build
Warranty covers only new work (not existing structure)
Energy efficiency capped by retained fabric
Planning permit almost always required in heritage areas (4-9 months)
Cost creep more common than KDR fixed price

Best For

• Heritage overlay blocks (Fitzroy, Carlton, Richmond, Hawthorn, South Yarra, Elwood, Middle Park)
• Character homes worth more preserved than replaced
• Owners loving location + wanting to stay
• Blocks with valuable mature landscaping
• Structurally-sound post-2000 homes needing layout updates

Melbourne 4-Bed Home: KDR vs Full Renovation (2026)

Common Questions

Use VicPlan (mapshare.vic.gov.au) - Victoria's free official planning-scheme map. Enter your address, tick 'Overlays' and it will show every overlay applying to your block. Heritage Overlay is coded 'HO' with a heritage-place number. If HO shows, full demolition is refused 70-90% of the time - plan for renovation.