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Perth Renovation Cost Calculator

Pick a room, a scope and a finish tier to see the real 2026 cost band — straight from the ConnectedScope State of Perth Renovation Costs guide. Then add the hidden structural costs most quotes leave out.

Indicative cost band
$22k–$32k
Hidden & structural costs (optional)

These rarely appear in the headline quote — but they are the single biggest reason Perth homeowners underestimate total cost by 20–30%. Tick any that apply to add their range into a combined low–high total below.

Perth pricing is already baked in. Every band above runs about 18% above the national benchmark for the same scope and finish — Perth's freight premium and labour market are reflected. On top of whatever total you land on, budget a further ~10% contingency (and 15–20% more again for pre-1970 homes — asbestos, old services, non-standard framing).
How to read these numbers. This calculator is indicative only. The bands come directly from the ConnectedScope State of Perth Renovation Costs 2026 guide and are deliberately shown as ranges, not single figures — your real number depends on layout, access, existing services and the specific products you choose. It is not a fixed-price builder quote. For line-by-line numbers on your actual property, a real costed scope of works starts at $195 and gives you the same document a quantity surveyor produces — every task, trade and material, across four finish tiers.

2026 Perth renovation cost bands — full reference

The full set of indicative bands the calculator draws from, by room, scope and finish tier. All figures AUD, Perth-adjusted (~18% above the national benchmark), excluding the hidden & structural costs in the table below. For line-by-line numbers on your own property, a real costed scope of works starts at $195.

Kitchen — 2026 Perth cost bands
ScopeBudgetStandardPremiumLuxury
Refresh (paint, tap, benchtop)$8k–$14k$14k–$22k$22k–$35k$35k+
Full kitchen replace, same layout$22k–$32k$32k–$55k$55k–$90k$90k–$160k
Kitchen + open-plan reconfigure$45k–$65k$65k–$110k$110k–$180k$180k+
Bathroom — 2026 Perth cost bands
ScopeBudgetStandardPremiumLuxury
Cosmetic refresh (no tile lift)$6k–$12k$12k–$20k$20k–$32k$32k+
Full bathroom rebuild, same layout$18k–$26k$26k–$40k$40k–$65k$65k–$110k
Bathroom + layout / wall changes$28k–$40k$40k–$60k$60k–$95k$95k+
Whole-home — 2026 Perth cost bands
ScopeBudgetStandardPremiumLuxury
Cosmetic refresh, no walls moved$60k–$110k$110k–$180k$180k–$280k$280k+
Full internal renovation$160k–$260k$260k–$450k$450k–$750k$750k–$1.1M

Hidden & structural costs (added on top where they apply)

ItemTypical rangeWhat it covers
Structural beam$50k–$75kSupport a new opening and tie old structure to new.
Engineering design + certification$15k–$30kStructural engineer design and sign-off.
Demolition + services relocation$18k–$32kStrip-out plus moving electrical, plumbing and HVAC.
Council approval + building permit$3k–$9kDA / BA application and permit fees.

Indicative only — not a fixed-price quote. Budget a further ~10% contingency (15–20% more for pre-1970 homes: asbestos, old services, non-standard framing).

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Send me the State of Perth Renovation Costs guide and details of how a real ConnectedScope scope turns these bands into line-by-line numbers for your home.

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Stop guessing. Get the real numbers.

A real scope of works from $195 inc GST turns these ballpark bands into a line-by-line, builder-ready document for your property — delivered in 24 hours. It's the decision and understanding layer before you talk to a single builder.

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Keep reading

State of Perth Renovation Costs 2026 Kitchen Renovation Costs Perth Bathroom Renovation Costs Perth Home Extension Costs Perth Pricing & Packages See a Sample Scope