Our free bathroom renovation cost calculator gives an instant, indicative estimate for renovating a bathroom anywhere in Australia. Choose your renovation level and bathroom size, then select your city to see a realistic price range in seconds.
Estimate a full bathroom renovation. Indicative AUD ranges.
Included: demolition, waterproofing, tiling, plumbing, electrical, fixtures and labour. Not included: major structural changes, relocating services, asbestos removal or council permits.
Indicative Australian estimate only — final quotes vary with city, access, property condition, materials, structural/plumbing/electrical changes, waterproofing and permits. Ranges last reviewed 28 May 2026.
How to use this bathroom renovation cost calculator
This bathroom renovation cost calculator estimates your project in two steps: pick a renovation level, then choose your bathroom size and city. The tool scales a typical mid-size bathroom price for your size and adjusts for regional labour rates, returning a realistic low-to-high range.
How much does a bathroom renovation cost in Australia?
A bathroom renovation in Australia typically runs from around $8,000 for a budget cosmetic refresh to $90,000 or more for a luxury custom build. Most full mid-range renovations land between $18,000 and $35,000. Your final cost depends on the level of finish, the size of the room, how much plumbing and electrical work moves, and where you live.
Bathroom renovation cost by level
| Renovation level | Typical cost (medium bathroom) |
|---|---|
| Budget — cosmetic refresh | $8,000–$18,000 |
| Standard — full mid-range | $18,000–$35,000 |
| Premium — high-end finishes | $35,000–$55,000 |
| Luxury — custom build | $55,000–$90,000+ |
What affects your bathroom renovation cost?
- Moving plumbing or fixtures — relocating the toilet, shower or vanity means new pipework and adds thousands.
- Waterproofing and tiling — compliant waterproofing plus floor-to-ceiling tiling is a major, code-required line item.
- Fixtures and finishes — tapware, vanities, screens and tiles range enormously between budget and designer.
- Room size — larger bathrooms use more materials, though small bathrooms rarely get much cheaper because waterproofing, plumbing and trade call-outs still apply.
- Property age — older homes can hide rot, asbestos or non-compliant wiring that adds cost once walls open up.
- Location — trades in Sydney and Melbourne charge more than in regional areas.
Frequently asked questions
How accurate is this bathroom renovation cost calculator?
It provides an indicative budgeting range from current Australian renovation costs. Always obtain detailed written quotes from licensed builders before committing.
Why does a small bathroom not cost much less?
Waterproofing, plumbing, tiling setup, certification and minimum trade call-out fees apply regardless of size, so a small bathroom only saves around 15% over a medium one.
What is the most expensive part of a bathroom renovation?
Labour, waterproofing and tiling usually dominate, followed by premium fixtures. Moving plumbing is the biggest avoidable cost.
How long does a bathroom renovation take?
A standard bathroom typically takes three to five weeks, depending on trade availability, tiling complexity and whether the layout changes.
Do I need council approval to renovate a bathroom?
Most like-for-like bathroom renovations do not need council approval, but moving walls, windows or drainage — or any work on a heritage-listed property — can require permits. Confirm with your local council and use licensed, insured trades for waterproofing and plumbing.
Bathroom renovation cost by city
Location noticeably affects your bathroom renovation cost. Sydney and Darwin sit around 10% above the national average on labour, Melbourne and Canberra about 5% higher, while Adelaide and Hobart tend to run around 5% lower. A standard $18,000–$35,000 mid-range renovation can swing by several thousand dollars between a metro and a regional quote, which is why this calculator includes a location adjustment. To keep costs down, retain the existing layout, choose mid-range tiles and tapware, and tile to practical heights rather than full ceiling height in secondary bathrooms.
How we calculate these estimates
Our ranges draw on quotes from licensed Australian bathroom renovators, cross-checked against cost data from the Australian Bureau of Statistics and guidance from Master Builders Australia. Figures are reviewed quarterly and were last updated on 28 May 2026.