Planning a complete bathroom transformation can feel overwhelming, especially when you’re trying to work out how much you’ll actually need to spend. Understanding the full bathroom renovation cost upfront helps you make informed decisions, avoid budget blowouts, and create the bathroom you’ve been dreaming about without the financial stress.
What’s in this guide
- Full bathroom renovation cost breakdown
- Factors affecting your renovation budget
- How room size impacts pricing
- Fixtures and fittings budget guide
- Common mistakes to avoid
- FAQ
Full bathroom renovation cost breakdown
Across Australia in 2026, a full bathroom renovation cost typically ranges from $18,000 to $35,000 for a standard-sized bathroom (around 5–8 square metres). This figure covers everything from demolition and waterproofing through to new tiles, fixtures, and final touches. Of course, luxury finishes, structural changes, or premium fixtures can push costs well beyond $45,000.
Here’s how the budget typically breaks down:
- Labour: 40–50% of your total budget ($7,200–$17,500). This includes plumbers, electricians, tilers, waterproofers, and general builders.
- Materials and fixtures: 30–40% ($5,400–$14,000). Tiles, tapware, vanity, toilet, shower screen, bathtub, and cabinetry all fall into this category.
- Demolition and disposal: 5–8% ($900–$2,800). Stripping out the old bathroom and removing waste isn’t cheap, especially if asbestos is present.
- Compliance and permits: 2–5% ($360–$1,750). Building permits, plumbing compliance certificates, and waterproofing sign-offs are non-negotiable in most councils.
- Contingency: 10–15% ($1,800–$5,250). Always budget for the unexpected—hidden structural issues, supply delays, or design tweaks.
Keep in mind that prices vary significantly between states and regions. Metro areas like Sydney and Melbourne tend to sit at the higher end, while regional centres may come in 10–20% lower. For city-specific insights, you might find our guides on bathroom renovation costs in Melbourne or Sydney bathroom renovation pricing helpful.
Factors affecting your renovation budget
Not all bathroom renovations are created equal. Several key factors will push your full bathroom renovation cost up or down:
Scope of work
A cosmetic refresh—new paint, updated fixtures, re-grouting—costs far less than a full gut-and-rebuild. If you’re moving plumbing or walls, expect to pay significantly more. Relocating a toilet or shower can add $2,000–$5,000 in plumbing alone, plus additional tiling and structural work.
Quality of materials
Your choice of tiles, tapware, and cabinetry has an enormous impact. Budget ceramic tiles might cost $30–$50 per square metre, while premium porcelain or natural stone can hit $150–$250 per square metre. The same applies to tapware: a basic mixer might be $120, while a designer brand can easily exceed $800.
Labour rates
Tradespeople charge varying rates depending on experience, location, and demand. In 2026, expect to pay tilers around $50–$80 per square metre (supply and install), plumbers $90–$150 per hour, and electricians $85–$130 per hour. Licensed waterproofers charge $80–$120 per square metre for full membrane application.
Structural and compliance issues
Older homes often hide surprises: outdated wiring, asbestos sheeting, poor ventilation, or inadequate waterproofing. Remediating these can add thousands to your budget but is essential for compliance with the Building Code of Australia (BCA). Waterproofing, for example, must meet AS 3740 standards, and your certifier will require documentation.
Design complexity
Simple layouts with standard fixtures keep costs down. Custom niches, feature walls, underfloor heating, and frameless glass screens all add complexity—and expense. A basic alcove shower with a standard screen might cost $2,500 installed, whereas a walk-in wet room with floor waste and frameless glass could hit $6,000–$8,000.
How room size impacts pricing
Bathroom size directly influences your full bathroom renovation cost, primarily through tiling, waterproofing, and fixture choices. Here’s a rough guide for 2026:
- Small bathroom (3–5 m²): $15,000–$25,000. Compact spaces can actually cost more per square metre because trades still need the same setup time, and there’s less room for error.
- Standard bathroom (5–8 m²): $18,000–$35,000. The sweet spot for most Australian homes. This size allows for a shower, vanity, toilet, and sometimes a bath without feeling cramped.
- Large bathroom (8–12 m²): $30,000–$50,000+. More floor and wall area means more tiling, more waterproofing, and often more ambitious design features like freestanding baths or double vanities.
- Ensuite (2.5–4 m²): $12,000–$22,000. Smaller footprint but often requires the same fixtures as a main bathroom, just scaled down.
If you’re working with a particularly compact space, our small bathroom renovation cost guide dives deeper into budget-friendly strategies.
Fixtures and fittings budget guide
Let’s break down what you can expect to spend on individual elements of your full bathroom renovation cost:
Vanity and basin
Budget options start around $400–$800 for a basic wall-hung or freestanding vanity with integrated basin. Mid-range units with stone tops and soft-close drawers sit at $1,200–$2,500. Custom joinery or premium brands can exceed $4,000.
Toilet
A standard close-coupled toilet costs $250–$600. Wall-hung (in-wall cistern) models run $800–$1,500 including the frame and installation. High-end Japanese-style smart toilets with bidets and heated seats can reach $3,000–$6,000.
Shower
A complete shower package—mixer, rail, rose, and hose—ranges from $300 (budget) to $1,800 (premium). Add $800–$1,500 for a basic framed screen or $1,200–$3,000 for frameless glass. Tile surrounds typically cost $50–$150 per square metre installed, depending on tile choice and pattern complexity.
Bathtub
Acrylic drop-in tubs start at $500–$1,200. Freestanding baths range from $1,500 (fibreglass) to $5,000+ (stone resin or cast iron). Installation and plumbing add another $800–$1,500.
Tapware and accessories
Budget for $600–$1,500 for a full suite of tapware (basin mixer, shower mixer, bath spout if applicable). Towel rails, toilet roll holders, robe hooks, and mirrors add another $300–$800.
Lighting and ventilation
Downlights cost $40–$120 each installed. Exhaust fans range from $150–$500, though high-capacity models with humidity sensors can reach $800. Heated towel rails run $400–$1,200 installed.
Flooring and wall tiles
Most full bathroom renovations use tiles throughout. Budget $2,500–$6,000 for floor and wall tiling in a standard bathroom, including supply, labour, waterproofing, and grout. Larger format tiles, intricate patterns, or premium materials push costs higher.
Common mistakes to avoid
Even experienced renovators can stumble when planning a full bathroom renovation. Here are the pitfalls to watch for:
Skipping the contingency buffer
It’s tempting to spend every dollar of your budget on beautiful finishes, but unexpected issues crop up in almost every renovation. Hidden water damage, non-compliant plumbing, or incorrect measurements can blow budgets fast. Always hold back 10–15% for contingencies.
Underestimating waterproofing importance
Waterproofing is not the place to cut corners. Poor waterproofing leads to leaks, mould, and structural damage that cost far more to fix later. Insist on a licensed waterproofer who provides a compliance certificate. The Australian Building Codes Board mandates specific waterproofing standards for wet areas.
Choosing style over function
That stunning matte black tapware might look incredible in a showroom, but it shows water spots immediately. Likewise, large-format tiles can look sleek but may not suit small bathrooms or uneven floors. Think about daily maintenance and practicality alongside aesthetics.
Ignoring ventilation
Inadequate ventilation leads to mould, peeling paint, and long-term moisture damage. Building codes require mechanical exhaust in bathrooms without windows. Don’t skimp on a quality exhaust fan—it’s a small upfront cost that saves thousands in remediation.
Forgetting about storage
Bathrooms accumulate a surprising amount of stuff. Without adequate storage, benchtops become cluttered and the space feels chaotic. Plan for vanity drawers, recessed niches in the shower, and wall-mounted cabinets early in the design phase.
DIY-ing licensed work
Plumbing and electrical work must be carried out by licensed tradespeople in Australia. Attempting these yourself not only risks serious safety issues but can also void insurance and cause problems when you sell. It’s simply not worth the risk, no matter how confident you feel.
FAQ
What is the average full bathroom renovation cost in Australia in 2026?
The average full bathroom renovation cost in Australia ranges from $18,000 to $35,000 for a standard 5–8 square metre bathroom. Budget renovations can start around $15,000, while high-end projects with premium finishes and fixtures often exceed $45,000. Location, materials, and scope of work all influence the final price.
How long does a full bathroom renovation take?
Most complete bathroom renovations take 3–6 weeks from demolition to completion. Delays can occur due to supply issues, council approvals, or unexpected structural problems. Complex projects involving major layout changes or custom joinery may stretch to 8 weeks. Always factor in buffer time when planning.
Do I need council approval for a full bathroom renovation?
It depends on the scope of work. Cosmetic updates (tiles, fixtures, paint) generally don’t require approval. However, structural changes, plumbing relocations, or alterations affecting load-bearing walls usually need a building permit. Your plumber must also provide a compliance certificate for any plumbing work. Check with your local council early in the planning stage.
Can I reduce my full bathroom renovation cost without compromising quality?
Absolutely. Keep the existing layout to avoid costly plumbing changes, choose mid-range tiles and fixtures rather than premium brands, handle demolition yourself if you’re capable, and shop around for materials during sales. Prioritise spending on waterproofing and quality tradespeople—these aren’t the areas to cut corners. You can always upgrade accessories and decor later.
Should I renovate my bathroom myself or hire professionals?
While you can handle some tasks like demolition, painting, or installing accessories, leave licensed work (plumbing, electrical, waterproofing, tiling) to qualified tradespeople. Poor workmanship in wet areas leads to leaks and structural damage that cost far more to remedy. A professional renovation also comes with warranties and compliance certificates, protecting your investment and ensuring your home meets building standards.
A full bathroom renovation represents a significant investment, but with careful planning and realistic budgeting, you’ll create a functional, beautiful space that adds genuine value to your home. Start by getting multiple quotes, setting aside a healthy contingency, and prioritising quality where it matters most—waterproofing, plumbing, and structural integrity. The cosmetic details can always be refined, but the bones of your renovation need to be built right from the start.