Cost to Renovate Bathroom in Australia: Budget Guide

Q: Is there money to be saved if I source my own fixtures and tiles instead of going through the tradie?

Plenty of homeowners do it — just make sure you&#39;ve got the coordination sorted. A damaged or incompatible fixture means a replacement wait — and that delay hits your timeline and your wallet, not the tradie&#39;s. Confirm all specifications with your plumber or tiler before purchasing anything.

Q: Will I need a building permit for a bathroom reno in Australia?

That comes down to scope and which state you&#39;re in. Move a waste point, touch the structure or alter an electrical circuit and a permit&#39;s almost certain — a straight cosmetic swap-out usually flies under that radar. Talk to your local council or a registered building surveyor before a single tool comes out — stuff this up and it&#39;ll haunt you when you sell.

Title: 10 Bathroom Renovation Tips from a Contractor Upload Date: 2025-03-25 Description: A contractor outlines 10 key bathroom renovation tips covering costs, fixtures, tiling and labour — helping Australian readers understand what drives prices across basic, mid-range and luxury reno sco Video Credit: Home like you mean it

So, How Much Will Your Australian Bathroom Reno Actually Set You Back?

Picture your own bathroom — every detail chosen by you. Fresh tiles on the walls, fixtures that sit dead level, a vanity that belongs there — that's the dream. It's absolutely achievable — you just need a clear grip on what it'll cost you.
Bathroom reno prices across Australia shift quite a bit depending on job size and how complex the work gets. A basic re-do — new fixtures, tiles and tapware, with the existing plumbing left in place — sits comfortably between $8,000 and $12,000. Full waterproofing, a new toilet suite, a fresh vanity, and new floor-to-wall tiling? That mid-range scope puts you in the $15,000 to $25,000 bracket. A luxury ensuite fit-out — think large-format porcelain tiles, frameless glass screens and designer tapware — can push well past $30,000.
Room size drives price more than most people expect. Compared to a 6 m² family bathroom, a 3 m² room needs far less tiling, fewer waste outlets and shorter pipe runs. Labour in Sydney runs dear — even a limited scope of work starts around $11,500 — whereas Hobart and regional centres can come in as low as $9,000 for a comparable job. Treat any figure as a rough guide — your final specs are what really set the number.

hands framing bathroom renovation design rendering with vanity, bathtub, glass shower, and tile sketch

What Actually Drives Your Bathroom Reno Price Up or Down

Aren't you often surprised when two very similar jobs have wildly different costs? One of the primary reasons that this happens is if the new layout moves plumbing around. If the toilet, basin and shower stay put, then your plumber is not really having to re-route things, and can save you $2,000 to $5,000 compared with a bathroom that has moved plumbing.
The age of your home may also cause added cost, for example, if it was built prior to the 1990s, there might have been asbestos in the walls, tiles or ceilings or you may have failing waterproofing, which will need to be done first. Or you might need to update drainage. The tradesperson will be sure to highlight any issues when they first look over the space but you must have a contingency allowance in your budget of about 10%.
Labour rates vary depending on where you live. Melbourne and Brisbane can have lower rates for tiling and plumbing compared to Sydney, while Perth prices have gone up significantly over recent years. It also matters if you want to engage your own trades or use a turnkey solution as package builders are convenient but usually do not allow as much room for choices of materials.
Now that you know the main elements influencing your bathroom renovation cost australia, you need to understand how much money is budgeted for various trades and materials so that you can see where you have some flexibility and where you cannot skimp.

Infographic breaking down Australian bathroom renovation costs by trade with percentage ranges

Typical Budget Breakdown by Trade and Material

This is the average amount by trade and material.
Waterproofing and tiling: 25 to 35%. Any shower walls must be waterproofed to a minimum of 1800mm above the floor substrate (NCC 2022, ABCB Housing Provisions, Part 10.2) and any wall directly abutting a bath must be waterproofed to a minimum of 150mm above the rim. This must be installed by a licensed waterproofer using a membrane complying with AS 3740:2021. There is no bypassing this stage or skimping, as there is a reason for this mandatory cure period.
Plumbing labour: 20 to 25%
Electrical and exhaust fan: 8 to 12%. All bathroom electrical work must be compliant with AS/NZS 3000:2018 zone clearance requirements. Your licensed electrician will undertake this work but it is important to know this will be a real line item in your quote.
Vanity and cabinetry: 10 to 15%
Contingency allowance: 10%
Tile choice also has a major impact on the cost to renovate bathroom, and understanding tile pricing is essential when you plan the overall cost to renovate bathroom:

Ceramic tile: $6 to $30 per piece
Mid-range rectified porcelain tile: $30 and $80 per piece
Large-format premium porcelain tile: $50 to $150 per piece
Tile laying labour: $50 to $70 per m²

Salesperson with clipboard advising couple browsing basin taps in bathroom showroom

Fixtures and Fittings: Where Your Money Goes

Fixtures and fittings usually account for 15 to 20% of your budget.
Here is how each of these individual components will affect your overall cost:
Toilet suites: $185 to $1,199. You will have plenty of choice. Fienza or Poseidon back-to-wall suites are popular mid-range options. A smart toilet starts from $1,619 and may well be a worthwhile expense if your budget allows.
Toilet seats range in price from $80 to $350 depending on quality. Replacing toilet seats is one of the quickest ways to modernise your bathroom without replacing the entire suite.
In a commercial bathroom fit-out, or if you are including a urinal within a residential bathroom, discuss it early so that your plumber will allow for it during the rough-in phase. A urinal is a standalone fixture with its own plumbing requirements, separate from toilet suite considerations.
A potentially expensive mistake is ordering a toilet before you have the plumbing configuration figured out. Prior to ordering, you and your plumber need to determine whether your home requires an s trap for toilet waste or a P-trap. This depends on where the exit waste outlet is situated relative to the centre of the waste pipe. All plumbing and drainware components should have WaterMark certification before they can be installed. Your plumber will have this knowledge but it is worth being aware of if you plan on purchasing some items yourself.
Tapware can vary a great deal. A short basin mixer from Meir starts at $200 within the premium segment, but a basic basin mixer starts at $56. Showerhead and rail sets range from $269 to $1,784, depending on finish, features and type.

Bathroom mid-renovation with old freestanding bath, ladders, tools, and exposed walls

How Long Does a Bathroom Renovation Take?

To answer the question how long does a bathroom renovation take: normally two to four weeks, depending on trade scheduling and material delivery.
Here is a general phase breakdown:

Demolition: a half-day to a full day for a simple fit-out
Waterproofing: membrane application and cure time: three to five days — tilers must not tile over uncured waterproofing membrane
Tiling: two to three days
Fixture installation and connections, including your s trap for toilet waste: one to two days depending on plumbing configuration
Inspections and sign-off: one day

Tile sourcing — particularly imported large-format porcelain — and poor sequencing between trades are the two biggest culprits when a reno runs late. Get your trades locked in order before demo day, and order tiles well ahead — lead times catch plenty of homeowners off guard. Done right, with solid planning behind it, a bathroom reno is hard to beat as a home investment.

References

National Construction Code 2022, ABCB Housing Provisions, Part 10.2 Wet Areas
AS 3740:2021 Waterproofing of Domestic Wet Areas, Standards Australia
AS/NZS 3000:2018 Electrical Installations (Wiring Rules), Standards Australia
WaterMark Certification Scheme, Australian Building Codes Board

FAQs

Is there money to be saved if I source my own fixtures and tiles instead of going through the tradie?

Plenty of homeowners do it — just make sure you've got the coordination sorted. A damaged or incompatible fixture means a replacement wait — and that delay hits your timeline and your wallet, not the tradie's. Confirm all specifications with your plumber or tiler before purchasing anything.

Will I need a building permit for a bathroom reno in Australia?

That comes down to scope and which state you're in. Move a waste point, touch the structure or alter an electrical circuit and a permit's almost certain — a straight cosmetic swap-out usually flies under that radar. Talk to your local council or a registered building surveyor before a single tool comes out — stuff this up and it'll haunt you when you sell.

If I renovate a second bathroom or ensuite at the same time, how does that change the overall cost?

Doing both at once often cuts total costs — trades are already on site and you can consolidate material orders for a better deal. Results differ, but a 10 to 15 percent labour saving is a figure homeowners regularly mention when two bathrooms run as one project.