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The Ultimate Bathroom Renovation Guide (Australia 2025)

by Corey Douglas | 16/04/2025

Thinking of a bathroom renovation? You’re in the right place. This comprehensive guide walks you through everything Aussie homeowners need to know — from setting your budget and understanding council rules to choosing fittings, avoiding common pitfalls, and using AI-powered tools to plan your project right from day one.


Why Bathroom Renovations Are Booming in Australia

Bathroom renovations are one of the most rewarding home improvement projects. Not only do they add value, comfort, and style — they also dramatically improve the daily liveability of your home.

In 2024, Aussies spent an average of $21,000 on bathroom upgrades, according to Houzz. The strongest growth was seen in New South Wales and Victoria, where property prices and design expectations are highest. Homeowners are looking for functional, future-proofed spaces that blend practicality with design-forward choices. The bathroom is no longer a forgotten utility space — it’s a wellness hub, a mini retreat, a showpiece.

Why now? There’s been a cultural shift post-COVID towards investing in lifestyle, comfort, and usability at home. Bathrooms, like kitchens, top the list of value-adding reno projects. Whether you’re updating a tired ensuite, modernising an outdated rental property, or building your forever bathroom, Australians are choosing to renovate smarter.


How Much Does a Bathroom Renovation Cost in Australia?

Let’s get straight to the numbers — because budgeting your renovation properly can make or break your experience. Pricing will vary depending on your suburb, fittings, and layout changes, but here’s a national average range to start with:

Bathroom Type Budget Range (AUD)
Small Bathroom (1.5m x 2m) $12,000 – $18,000
Standard Bathroom (2m x 3m) $18,000 – $25,000
High-End Bathroom $30,000+

Typical cost components:

  • Demolition & removal of old fittings
  • Waterproofing membrane installation (required by law)
  • Wall and floor tiling (labour and materials)
  • Rough-in and fit-off for plumbing and electricals
  • Fixtures: toilet, basin, vanity, shower screen, bathtub
  • Cabinetry and custom joinery
  • Lighting upgrades and accessories
  • Site clean-up and waste disposal
  • Project management (either self-managed or hired)

💡 Want a quote tailored to your home’s size and style? Use the AIreno Instant Bathroom Quote Tool — Australia’s smartest way to price renovations, powered by real tradie data and used by major partners like realestate.com.au.


What’s the Process for Renovating a Bathroom?

Renovating a bathroom isn’t just about picking out tiles and tapware. It’s a coordinated process that, when planned correctly, leads to fewer surprises and a much smoother build.

Step 1: Define the Scope

Are you doing a basic cosmetic update, a mid-range facelift, or a full structural overhaul?

  • Cosmetic = replacing fittings and fixtures, repainting, regrouting
  • Mid-range = new tiling, waterproofing, minor plumbing
  • Full reno = layout change, new floorplan, council approvals, luxury inclusions

Step 2: Set Your Budget

Always add a buffer of at least 10–15%. Renovations often uncover hidden issues (like leaks or rotted studs) that need fixing before new works can go ahead. Knowing your upper limit upfront allows you to make decisions with confidence.

Step 3: Design the Layout

Think about:

  • Flow: where do you enter, where do you towel off?
  • Functionality: is there enough room between vanity and shower?
  • Storage: drawers, open shelves, shaving cabinets?
  • Lighting: a mix of task, ambient and natural light is ideal

Use AIreno’s free layout planning tool to sketch and test different floorplans.

Step 4: Choose Your Fixtures and Finishes

Quality tapware, non-slip tiles, wall-hung vanities, soft-close drawers — these make a real difference. Avoid trends that will date quickly. Choose products that suit your lifestyle and are easy to maintain.

Step 5: Get Quotes the Smart Way

Gone are the days of waiting 3 weeks for a quote. With AIreno, you can generate a full scope and pricing breakdown in just minutes — saving time, avoiding phone tag, and ensuring accuracy from the get-go.


What to Consider Before You Start

Waterproofing Standards (AS 3740)

Australia has strict codes for waterproofing wet areas. Bathrooms must be treated with a compliant membrane installed by a certified technician. A waterproofing certificate may be required by your certifier or strata.

Council and Strata Rules

You might need development approval if:

  • Changing the bathroom layout
  • Adding or enlarging windows
  • Working in a heritage-listed home
  • Doing structural work

Check with your local council or speak to an AIreno planner who can review your address for free.

Ventilation Requirements

Poor ventilation = mould, mildew and moisture damage. If your bathroom doesn’t have a window, an extraction fan that complies with BCA ventilation standards is a must.

Licensing and Compliance

Plumbing and electrical works must be carried out by licensed trades. DIY is not permitted for these services. AIreno only works with vetted, licenced tradespeople.

Temporary Bathroom Access

If your home has only one bathroom, consider: Will you need a portable toilet or shower for the reno period? Plan ahead to avoid last-minute scrambling.


Bathroom Trends in Australia (2025)

Australian homeowners are embracing a blend of minimalism, smart tech, and warm materials. Here are the top trends:

  • Walk-in showers with level entry and frameless glass
  • Large-format floor tiles and vertical kit-kat feature tiles
  • Wall-mounted vanities to increase floor space and visual flow
  • Brushed nickel and gunmetal tapware replacing matte black
  • Backlit LED mirrors with demisters
  • Integrated laundry zones in compact homes
  • Smart toilets with heated seats, bidets and soft-close lids
  • Biophilic design — indoor plants, natural textures, skylights

Function is just as important as aesthetics. Think timeless materials, smart storage, and ergonomic flow.


How Long Does a Bathroom Renovation Take?

Timelines depend on the scope and whether your home is vacant. Here’s a general guide for a standard bathroom:

Stage Estimated Duration
Design & Planning 1–2 weeks
Demolition & Strip-out 2–3 days
Rough-in (plumbing/electrical) 3–5 days
Waterproofing 2 days (plus drying)
Tiling 3–5 days
Fit-off & Painting 3–4 days
Final Clean & Handover 1 day

Total: 3–5 weeks

Add extra time if you’re waiting on custom joinery, imported fittings, or are coordinating the project yourself without a builder or bathroom company.


Common Mistakes to Avoid

🚫 Skipping approvals — you might be forced to rip out non-compliant work
🚫 Chasing trends blindly — design for your lifestyle, not just your Pinterest board
🚫 Choosing cheap trades — poor waterproofing or plumbing can cost you thousands later
🚫 No storage planning — everyday items need designated homes
🚫 Underestimating final costs — finishes, accessories, delivery fees all add up

Avoid these by planning thoroughly, using trusted tools, and working with licensed pros.


How AIreno Makes Bathroom Renovations Easier

AIreno isn’t just a quoting platform — it’s a complete renovation assistant. We bring together everything a homeowner needs to plan and price their project confidently.

Here’s what you get:

Instant pricing tools that update in real-time as you customise scope
Smart quote builder with tradie-verified rates and live scope adjustments
AI-powered renovation planner to guide you step-by-step
Access to contractor quote pages (we call them Q-Pages) to place orders directly
Live chat with Ari — our AI assistant trained on all things renovation
Compliance support — we check for council rules, standards, and scope gaps
Trusted by realestate.com.au as their exclusive renovation pricing engine

Whether you’re a homeowner, investor, or tradie using the platform to sell services, AIreno bridges the gap between planning and doing.

⭢️ Want to get started?
👉 Use AIreno to plan and quote your bathroom renovation today


Final Thoughts

A bathroom renovation is one of the smartest investments you can make in your home. Done right, it enhances property value, lifestyle, and functionality — all while delivering a space that looks and feels great.

But it’s not something to rush. Get the plan right. Use the right tools. Work with the right people.

Start your renovation the smart way — with instant pricing, expert planning, and Australia’s smartest renovation tools.

💬 Still not sure where to begin? Chat with Ari, your AI project planner, now at AIreno.com.au


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