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A bathroom renovation is one of the most common — and most valuable — home improvements in Australia. It can also be one of the most expensive if you don't understand where the money goes. This guide breaks down real 2026 pricing across budget, mid-range, and premium tiers so you can plan with confidence.

All prices are in AUD and include GST unless otherwise noted.

Bathroom Renovation Cost Summary

The biggest factor driving cost is whether you keep the existing plumbing layout. Moving a toilet, shower, or basin to a new position requires new pipework, waterproofing, and often structural work — this can add $3,000–$8,000 to the total cost.

Cost Breakdown by Item

Here's where the money actually goes in a typical mid-range bathroom renovation:

What Affects the Price?

• Size of the bathroom — A small ensuite (3–4m²) costs significantly less than a large main bathroom (8–12m²) due to less tiling, fewer fixtures, and less plumbing.
• Tile selection — Standard ceramic tiles cost $25–$50/m² while large-format porcelain or natural stone runs $80–$200/m². Floor-to-ceiling tiling (vs half-height) also increases cost substantially.
• Plumbing changes — Keeping fixtures in their existing positions saves thousands. Moving a toilet requires a new waste pipe connection (often through the slab), which alone can cost $1,500–$3,000.
• Fixtures and fittings — A basic mixer tap costs $80–$150, while a premium brand like Astra Walker or Brodware runs $500–$1,500 per piece. Freestanding baths start at $1,500 and can exceed $5,000 for designer models.
• Access and site conditions — Ground-floor bathrooms on a concrete slab cost more to renovate than upper-floor bathrooms with accessible timber subfloors. Apartments may require strata approval and after-hours work restrictions.
• Asbestos — Pre-1990 homes may have asbestos in wall linings, floor tiles, or adhesives. Licensed removal adds $1,500–$5,000 depending on the extent.

Bathroom Renovation Cost by City

Timeline

A typical bathroom renovation takes 2–4 weeks for a mid-range job. Budget for an additional 1–2 weeks if you're relocating plumbing or dealing with unexpected issues (asbestos, structural problems, or waterproofing failures in the existing bathroom).

Tips for Saving Money

1. Keep the existing layout. This is the single biggest money-saver. Moving plumbing is expensive.
2. Choose tiles wisely. Standard 300x600mm ceramic tiles cost a fraction of large-format porcelain. Half-height tiling with painted walls above saves on both tiles and labour.
3. Get 3 quotes with detailed scope. Compare like-for-like. A $12,000 quote that excludes waterproofing is not cheaper than a $15,000 quote that includes it.
4. Source your own fixtures. You can save 20–30% by buying your vanity, toilet, and tapware yourself — but check with your builder first, as some won't warranty owner-supplied items.
5. Time it right. Builders and tilers are busiest in spring and summer. Booking in winter may get you better pricing and faster availability.

Do I Need Council Approval?

In most states, a straightforward bathroom renovation (same layout, no structural changes) does not require council approval. However, you will need:

• A licensed waterproofer (or plumber/builder with waterproofing endorsement)
• A licensed plumber for all plumbing work
• A licensed electrician for all electrical work
• A compliance certificate from the waterproofer

If you're making structural changes (removing walls, changing window openings), you may need a building permit or complying development certificate. Check with your local council.