Proper Job / Countries / Australia
Australia building cost calculator
Get a rough building budget in AUD before asking builders for quotes. New homes, extensions, and supported kitchen and bathroom replacements. City factors apply to supported new-home references; extension ranges are broader guides.
No sign-in is needed to calculate. Sign in to save. Choose Australia as the country of work.
Supported work
- Home extension
- New home
- Kitchen renovation
- Bathroom renovation
Currency and measurements
Prices use AUD and the existing Australia pricing model. Changing measurement units does not change the pricing country or convert UK rates.
Square metres (m²). Room replacements use room counts where requested.
What to check
Confirm state/territory permits, certification, insurance/levies and site hazards. City factors and source house types do not establish a local contractor quote.
Review the result’s tax basis, assumptions, inclusions and exclusions. These are indicative budgets, not contractor quotes or confirmation of regulatory compliance. Unsupported work needs a separate price.
Try asking in ChatGPT
“Use Proper Job to budget for home extension in Australia, in AUD. Ask me for the size and other project details.”
Your reply language is separate from the country of work. State the country, region and units explicitly.
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