How Much Does a Builder Cost in Australia? (2026 Guide)
Whether you're planning a timber deck, bathroom renovation, or a full granny flat build, understanding what builders charge in Australia helps you budget properly and compare quotes with confidence. This guide covers real 2026 pricing across the most common residential building jobs.
Tip: All prices on this page are indicative guides in AUD including GST. Actual costs depend on your location, materials, site conditions, and the scope of work. Always get at least three written quotes before committing.
Builder Hourly Rates in Australia
Most builders quote on a fixed-price or cost-plus basis rather than hourly, but when hourly rates apply (small jobs, day labour, or variations), here's what to expect:
| Builder Type | Typical Hourly Rate |
|---|---|
| General builder / carpenter | $55 – $90/hr |
| Licensed / specialist builder | $70 – $120/hr |
Hourly rates typically cover labour only. Materials, skip bins, and subcontractor costs (plumber, sparky, tiler) are charged separately. Apprentice or labourer rates sit lower at $35–$55/hr.
Common Building Job Prices
The table below covers the most frequently quoted residential building jobs. Ranges reflect differences in materials, complexity, and location.
| Job | Typical Price Range |
|---|---|
| Timber deck (25m²) | $8,000 – $18,000 |
| Bathroom renovation | $15,000 – $35,000 |
| Kitchen renovation | $20,000 – $50,000 |
| Pergola | $5,000 – $15,000 |
| Retaining wall (per lineal metre) | $250 – $700/lm |
| Granny flat | $80,000 – $150,000 |
| Extension (per m²) | $1,500 – $3,500/m² |
| Carport | $5,000 – $12,000 |
| Internal wall removal (non-structural) | $1,500 – $4,000 |
A closer look at the big-ticket items
Bathroom renovations vary hugely depending on whether you're doing a cosmetic refresh (new tiles, vanity, tapware) or a full gut-and-rebuild with waterproofing, plumbing relocation, and underfloor heating. Budget bathrooms start around $15,000; a high-end main bathroom with freestanding bath and floor-to-ceiling tiles can push past $35,000.
Kitchen renovations follow a similar pattern. A basic kitchen with flat-pack cabinetry and laminate benchtops sits at the lower end ($20,000–$25,000), while custom joinery, stone benchtops, and appliance upgrades push toward $50,000+.
Granny flats range from prefab kit homes at the low end to fully custom-designed builds with full kitchens and bathrooms. Council DA costs, site preparation, and service connections (sewer, power, water) add significantly to the base build price.
Builder Rates by City
Location has a meaningful impact on building costs. Capital cities generally cost more due to higher labour rates, stricter council requirements, and costlier materials delivery.
| City | General Builder (per hour) | Bathroom Reno | Timber Deck (25m²) |
|---|---|---|---|
| Sydney | $70 – $100/hr | $18,000 – $40,000 | $10,000 – $20,000 |
| Melbourne | $65 – $95/hr | $16,000 – $37,000 | $9,000 – $19,000 |
| Brisbane | $55 – $85/hr | $14,000 – $32,000 | $8,000 – $17,000 |
| Perth | $60 – $90/hr | $15,000 – $34,000 | $8,500 – $18,000 |
| Adelaide | $50 – $80/hr | $13,000 – $30,000 | $7,500 – $16,000 |
Regional and rural areas may have lower hourly rates but higher travel/delivery costs. Remote sites often attract a travel loading of $50–$150 per day.
What Affects the Price?
Nine times out of ten, the difference between a low quote and a high quote comes down to these factors:
- Materials — Treated pine decking vs hardwood vs composite can double or triple the materials cost. Same goes for standard tiles vs large-format porcelain in a bathroom.
- Site access — Steep blocks, narrow driveways, or rear-of-property jobs mean more manual labour and longer build times. A crane or bobcat hire adds $500–$2,000 per day.
- Engineer reports — Structural changes (wall removal, extensions, retaining walls over 600mm) require an engineer's design. Reports cost $500–$3,000 depending on complexity.
- Council approvals — Development applications (DAs), complying development certificates (CDCs), and building permits add $1,000–$5,000+ and can add weeks or months to the timeline.
- Existing conditions — Older homes may have asbestos, non-compliant wiring, or structural issues that only become apparent once work begins. Allowance for contingencies (10–15% of total budget) is strongly recommended.
- Subcontractor coordination — Complex jobs require plumbers, electricians, tilers, painters, and sometimes waterproofers. Each trade adds cost, and the builder's margin on subcontractor management is typically 10–20%.
Tips for Getting the Best Value
Fixed-price vs cost-plus contracts
Fixed-price means the builder commits to a total price for a defined scope of work. You know exactly what you'll pay (assuming no variations). This is best for well-defined jobs like a standard bathroom reno or deck build.
Cost-plus means you pay the actual cost of materials and labour, plus the builder's margin (typically 15–25%). This suits complex or uncertain projects (major renovations, heritage work) where the full scope can't be defined upfront. Insist on regular cost reporting and agreed caps.
Progress payments
For jobs over $10,000, most builders structure payments across milestones: deposit (10–15%), frame stage, lock-up, fit-out, and completion. Never pay more than 10% upfront, and never pay ahead of the work completed. In most states, this is regulated — for example, NSW limits deposits to 10% for jobs under $20,000 and 5% for jobs over $20,000.
Licensing matters
Always verify your builder holds the correct licence for the work:
- Queensland — QBCC licence required for all building work over $3,300 (including GST)
- Victoria — VBA registration required for domestic building work over $10,000
- NSW — NSW Fair Trading licence required for all residential work over $5,000
- WA — Building Services Board registration required
- SA — Consumer and Business Services licence required
A licensed builder carries insurance (public liability and home warranty/indemnity), is covered by state dispute resolution schemes, and is accountable to a regulatory body. Using an unlicensed builder may void your home insurance and leave you with no recourse if things go wrong.
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Other tips to save money
- Get at least three written quotes with a detailed scope of work — not just a total price.
- Ask what's not included. Common exclusions: asbestos removal, council fees, engineer reports, landscaping reinstatement, and temporary fencing.
- Time your project right. Summer is peak season for building work in most of Australia. Booking in autumn or winter may get you better availability and pricing.
- Bundle jobs where possible. A builder already on-site for a deck may quote the pergola at a lower rate than a separate mobilisation.
- Ask about builder's supply vs owner's supply for fixtures and fittings. You might save by sourcing your own tapware, tiles, or appliances — but check with the builder first, as some won't warranty owner-supplied items.
How to Read a Builder's Quote
A good builder's quote should include:
- Detailed scope of work — exactly what's being built, demolished, or modified
- Materials specification — brand, type, and finish of key materials (not just "timber deck" but "90x19mm Spotted Gum decking")
- Itemised pricing — labour, materials, and margins broken down
- Exclusions — what's not covered
- Timeline — estimated start date and duration
- Payment schedule — when payments are due and how much
- Licence and insurance details
If a quote is just a single line with a total price, ask for more detail. The more specific the quote, the fewer surprises during the build.
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