Bathroom Renovation Cost in Australia (2026): What to Budget

Bathroom renovation cost ranges in Australia, plus the biggest budget traps and how to avoid them.

Bathrooms are compact but expensive: high labour density, waterproofing rules, and fixture choices add up quickly.

Typical bathroom budget ranges (AUD)

• Basic refresh: $12,000–$20,000
• Mid-range renovation: $20,000–$35,000
• Premium renovation: $35,000–$55,000+

What pushes bathroom costs up

• Waterproofing and compliance requirements
• Tile format/complexity (large format, patterns, niches)
• Plumbing relocations
• Custom shower screens/vanities
• Ventilation and mould remediation

Budget traps to avoid

• Starting demolition before final selections are locked
• Underestimating waterproofing and prep work
• Choosing incompatible fixtures late in the build
• No contingency for hidden water damage

Quick budgeting rule of thumb

For planning purposes, assume:

• 10–15% contingency for straightforward jobs
• 15–20% contingency for older homes or full strip-outs

Start with the Renosnap renovation estimator and then pressure-test with trade quotes.