Construction Cost Calculator

Construction Cost Calculator

Early cost guidance helps committees understand the scale of a project before seeking tenders. We provide indicative construction costs based on current market rates and the specifics of your building.

What it covers

• Indicative cost ranges for common works
• Allowances for consultants, permits and contingency
• Comparison of options and staging
• Guidance on next steps to formal quotes

When you need one

• Exploring upgrades or additions
• Preparing budget proposals for an AGM
• Comparing repair versus replace decisions

What drives construction cost

• Building type, height and floor area
• Quality of finishes and materials
• Site access, scaffolding and working at heights
• Structural, fire and services upgrades required by current codes
• Consultant, permit and certification fees
• Contingency for unknown conditions, typically 10–20% for existing buildings

Indicative figures are a guide only. A quantity surveyor’s estimate or competitive quotes should be obtained before the owners corporation commits to works.

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