A full bathroom renovation in Sydney typically costs between $20,000 and $45,000, with most mid-range projects landing near $28,000 once labour, materials, fittings, and waterproofing are included. Costs shift with size, finish level, and structural changes.
Bathroom budgets blow out faster than any other room because hidden costs, fixture upgrades, and waterproofing surprises stack quickly. Knowing the real numbers protects your spend and your timeline.
This FAQ answers the questions Sydney homeowners and investors ask most: real costs, labour breakdowns, fittings, hidden expenses, timelines, approvals, and long-term value returns.
Bathroom Renovation Cost Basics
How much does a bathroom renovation cost in Sydney?
Budget bathroom renovations start around $15,000–$20,000, mid-range projects sit between $25,000 and $35,000, and premium custom bathrooms commonly exceed $45,000. Final pricing depends on bathroom size, layout changes, fixture quality, and tiling selections.
What’s the average price per square metre?
Sydney bathroom renovations generally run $3,500–$5,000 per square metre for a full strip-out and rebuild. Smaller bathrooms cost more per square metre because fixed costs like waterproofing, plumbing, and electrical work are concentrated in less space.
What’s included in a full bathroom renovation?
A full renovation covers demolition, plumbing, electrical, waterproofing, tiling, cabinetry, fixtures, fittings, ventilation, lighting, painting, and finishing trades. For a complete breakdown of every stage from design to handover, our detailed bathroom renovation guide walks through planning, cost drivers, and finish selection so you can build a full project roadmap before committing to a budget.
Labour and Trades Costs
How much do bathroom tradespeople cost?
Licensed Sydney plumbers charge $100–$160 per hour, electricians $90–$130 per hour, tilers $70–$100 per hour, and carpenters $80–$120 per hour. A typical renovation requires six to eight different trades coordinated across two to three weeks.
Why does labour make up the biggest share of the budget?
Labour usually accounts for 40–55% of total bathroom renovation costs in Sydney because wet areas require multiple licensed trades, strict sequencing, and waterproofing certification. Compressed timelines and access challenges push labour higher than in dry-area renovations.
Do I need a licensed builder for a bathroom renovation?
In NSW, any residential renovation work valued over $5,000 must be carried out by a licensed builder under NSW Fair Trading regulations. Waterproofing must be done by a certified applicator, and plumbing and electrical work require licensed trades by law.
Materials, Fittings, and Fixtures
How much should I budget for tiles?
Allow $50–$120 per square metre for mid-range tiles and $30–$50 per square metre for tiling labour. A standard Sydney bathroom needs around 30–45 square metres of tile coverage including floor, walls, and shower recess.
What is a realistic PC (Prime Cost) allowance?
Mid-range Sydney bathrooms allocate $5,000–$9,000 for fittings including toilet, vanity, basin, tapware, shower screen, and accessories. Premium fittings can push PC allowances above $15,000. Always confirm allowances are itemised in your contract.
Where can I save without compromising quality?
Keep the existing layout, choose mid-range tapware over designer brands, select large-format tiles to reduce labour, and stick with standard vanity sizes. Tiling, plumbing, and cabinetry choices follow similar cost logic across wet areas, and our kitchen renovation guide shows how material allowances translate between bathrooms and kitchens.
Hidden Costs and Budget Pitfalls
What hidden costs should I prepare for?
Common hidden costs include waterproofing repairs, asbestos removal in pre-1990 homes, hidden water damage, rotten subfloors, outdated plumbing rough-ins, and electrical compliance upgrades. These often add $3,000–$8,000 to the final invoice.
How much contingency should I add to my budget?
Always add a 15–20% contingency on top of your quoted price. For a $30,000 renovation, that means setting aside an additional $4,500–$6,000. Bathrooms renovated alongside other rooms often share trades and disruption costs, and our whole home renovation guide explains how bundling projects can reduce overall spend across multiple wet areas.
What causes most bathroom renovation cost blowouts?
The biggest blowout triggers are mid-project design changes, upgraded fixture selections, undiscovered structural damage, and waterproofing remediation. Locking specifications before demolition begins eliminates 70–80% of typical overrun risk.
Timeline, Permits, and Project Planning
How long does a bathroom renovation take?
A standard Sydney bathroom renovation takes 3–5 weeks from demolition to handover. Premium or structurally complex projects can extend to 6–8 weeks. Waterproofing curing time alone requires 5–7 days and cannot be rushed.
Do I need council approval in NSW?
Cosmetic renovations and like-for-like fixture swaps generally do not need approval. Layout changes, new windows, or moving plumbing fixtures may require a Complying Development Certificate or DA, depending on your council and property zoning.
How should I stage payments to my contractor?
Standard NSW progress payments are deposit (10%), post-demolition (20%), post-rough-in (25%), post-tiling (25%), and final completion (20%). If you’re renovating adjacent wet areas at the same time, our laundry renovation guide outlines how shared waterproofing and trade scheduling affect overall timelines.
Value, ROI, and Long-Term Decisions
Does a bathroom renovation increase property value?
A well-executed bathroom renovation can return 60–75% of its cost in added property value, and in high-demand Sydney suburbs it can exceed 100%. Buyer appeal, presentation quality, and finish consistency drive the strongest valuation lift.
Which upgrades add the most resale value?
Frameless shower screens, double vanities, neutral large-format tiling, quality tapware, underfloor heating in cooler suburbs, and good lighting design deliver the strongest perceived value. Avoid overly trendy finishes that date quickly.
Should investors renovate to premium or mid-range standard?
Rental properties usually return best results at a durable mid-range standard that maximises tenant appeal without overcapitalising. Property investors weighing bathroom upgrades against new-build returns can compare scenarios in our granny flat guide, which covers wet-area costing for secondary dwellings in Sydney.
Conclusion
Smart bathroom budgeting comes down to realistic costings, transparent trade pricing, and a healthy contingency. At Sydney Home Renovation, we help homeowners and investors plan, price, and deliver bathroom projects with honest numbers and zero surprises.