Sydney bathroom renovation cost breakdown

Quick answer: how a Sydney bathroom renovation cost breaks down

A standard full bathroom renovation in Sydney runs around $24,000 in 2026. Across a typical job, the spend splits roughly: tiling and waterproofing ~30%, plumbing ~15%, fixtures and fittings ~20%, labour and project management ~25%, and strip-out, electrical and finishing ~10%. The per-square-metre rate lands between $3,000 and $5,000 per m2 - higher for small rooms, lower for large ones.

Below is the full line-by-line breakdown, the per-square-metre rates by bathroom size, the labour-versus-materials split, and how to estimate your own bathroom.

Bathroom renovation cost per square metre in Sydney

Per-square-metre rates are a useful starting point, but they move with size - small rooms cost more per m2 because the fixed costs don't scale down:

If you're pricing a compact room specifically, see the small bathroom renovation cost guide; for an ensuite, the ensuite cost guide.

The full breakdown, line by line

Where the money goes on a standard ~$24,000 Sydney bathroom renovation:

Tiling is almost always the single biggest line item, followed by labour and fittings - and all three are where your choices move the number most.

Labour vs materials: the rough split

On a typical Sydney bathroom, labour is roughly 45-55% of the total and materials and fittings the other 45-55%. Labour-heavy steps - tiling, waterproofing, plumbing - are also the ones you legally can't skip or DIY, which is why the labour share holds even on budget jobs. The materials side is where you have the most control: tile choice, tapware brand and whether you use stone all swing the number by thousands.

What pushes the number up

• Moving fixtures. Relocating the toilet, shower or vanity means new plumbing runs and re-waterproofing - often $2,000-$4,000 on its own.
• Tile selection. Imported stone, large-format or mosaic feature walls cost several times more to supply and lay than standard porcelain.
• Structural surprises. Rotten subfloors, hidden leaks or old asbestos sheeting found at demolition can add cost mid-job - the most common reason a quote jumps after strip-out.
• Premium fittings. Freestanding baths, frameless screens, heated floors and designer tapware lift the fittings line quickly.

How to estimate your bathroom renovation cost

For a quick estimate: take your bathroom's floor area and multiply by the per-square-metre rate for its size band above, then adjust up if you're moving fixtures or specifying premium finishes. For a more tailored number, use the interactive calculator on the main Sydney bathroom renovation cost guide, which factors in size, scope and finish. A per-m2 figure is a guide, not a quote - scope and the condition of what's behind the walls always shift the final price.

Worked example: standard Sydney bathroom, 7 m2

A 2026 full renovation of a 7 m2 main bathroom in Sydney - full strip-out, same layout, mid-range fittings, bath and separate shower, porcelain tiles:

• Strip-out and disposal: $1,600
• Plumbing: $3,800
• Waterproofing: $1,100
• Tiling (supply + lay): $6,800
• Electrical: $1,400
• Vanity, toilet, tapware, screen, bath: $5,800
• Labour and management (balance): $3,500

Total: ~$24,000. Swap in stone tops and a frameless screen and the same room runs $28,000-$32,000.

Frequently asked questions

How is a bathroom renovation cost broken down?

On a standard ~$24,000 Sydney bathroom, the rough split is tiling and waterproofing ~30%, labour ~25%, fixtures and fittings ~22%, plumbing ~15%, and strip-out, electrical and finishing ~10%. Tiling is usually the single biggest line item.

What does a bathroom renovation cost per square metre in Sydney?

Between $3,000 and $5,000 per square metre in 2026. Small bathrooms (3-4 m2) sit at the top, around $3,500-$5,000/m2, while large bathrooms (10 m2+) drop toward $2,800-$3,400/m2 because fixed costs spread over more floor.

What is the biggest cost in a bathroom renovation?

Tiling - supply and lay - is almost always the largest single line item, typically 25-30% of the total. Labour and fixtures/fittings are the next two biggest, and all three are where your choices move the price most.

What is the labour vs materials split on a bathroom renovation?

Roughly half and half - labour is about 45-55% and materials and fittings the rest. Labour-heavy steps like tiling, waterproofing and plumbing cannot be skipped, so the labour share stays high even on budget jobs.

Is there a bathroom renovation cost calculator or estimator?

Yes - the main Sydney bathroom renovation cost guide has an interactive calculator that factors in size, scope and finish. For a rough estimate yourself, multiply your floor area by the per-square-metre rate for its size band, then adjust for moving fixtures or premium finishes.

What is included in a bathroom renovation quote?

A complete quote should cover strip-out and disposal, plumbing rough-in and fit-off, certified waterproofing, tiling supply and lay, electrical, fixtures and fittings, and labour with project management. Always check whether fittings (vanity, tapware, toilet) are supplied or a PC allowance.

Why did my bathroom renovation quote jump after demolition?

Strip-out often reveals problems hidden behind walls and floors - rotten subfloors, old leaks, or asbestos sheeting in pre-1990 homes. Fixing these is unavoidable and is the most common reason a price rises mid-job. A good builder will flag the risk and allow a contingency upfront.

How accurate is a per-square-metre estimate?

It is a useful starting point but only a guide. Two bathrooms of the same size can differ by thousands depending on whether fixtures are moved, the finish level, and the condition of the plumbing and subfloor. Use per-m2 to ballpark, then get three quotes for a real number.