Home extension cost estimator
Work out an approximate budget for extending your home in Perth based on the added floor area and the type of extension.
Use this range for early budgeting; final cost depends on foundations, roofline matching and council requirements.
Compare actual quotes for this projectLocal price context: based on 90 price points from reviews and provider websites across this directory. Recorded prices span jobs of very different sizes, so compare quotes for your exact project.
This is an estimate only; a detailed quote requires a site visit and design.
When you submit a form on this site, your enquiry may be shared with partner providers able to do the work. We may receive a referral fee, but our rankings and scores are based on our published method only and are not affected by these fees.
Get quotes from top-rated renovation contractors
Ranked by our published rubric from recent Google reviews, weighted by relevance to this service (the same order as the category page).
New Vision RenovationsGet a quote5.0(42) 87
Modus PropertyGet a quote4.9(193) 88
HomeLux RenovationsGet a quote5.0(50) 88
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Complete Bathroom SolutionsGet a quote5.0(57) 89