Cost to Build a House in Brisbane (2026)
Updated 2026-08-14 · Register QBCC
Brisbane build prices are usually quoted per square metre, but the number on your final invoice depends far more on what kind of build it is — a standard project home, a custom design, a raise-and-build-under on a Queenslander, or an extension onto an old timber house. The ranges below are typical Greater Brisbane / SEQ figures for 2026 and exclude land. Just as important as the rate is who you're allowed to sign a contract with: in Queensland, building work valued over $3,300 must be done by a QBCC-licensed contractor, and that same threshold triggers mandatory home-warranty insurance that protects you if the job goes wrong.
Costs at a glance
Ranges reflect quotes observed locally — not national averages, not advertised "from" prices.
| Service | Typical range (A$) |
|---|---|
New house build, standard project-home finish (per m²) Based on Hunter Galloway's Brisbane build-cost guide (updated July 2026), which puts project homes at $1,872–$2,878/m² by cladding type — weatherboard lowest, full brick highest — and separately quotes $2,800–$4,950/m² for a standard new build; the range shown spans those two figures. Excludes land, site costs, driveway and landscaping, all of which that guide lists as standard builder exclusions. Custom or architectural homes commonly run $3,500–$5,500+/m² — Hunter Galloway puts a deluxe architect home higher again, at $4,157–$7,444/m². | A$2,200 — A$3,500 |
Raise and build in under a Queenslander (raise house + new lower level) Based on Abode Construction's Brisbane raise-and-build-under guide (QBCC 15139300, updated August 2026), which puts a mid-range Queenslander lift and build-under at $280,000–$480,000 and the lift alone at $45,000–$90,000; premium projects run $600,000–$1.2M+. Varies with block slope, ceiling height gained, and re-routing services. | A$250,000 — A$500,000 |
Ground-floor extension / room addition (per m²) Based on Urban Design Solutions' Queensland extension cost guide (QBCC 1177769, updated February 2026): $2,500–$4,000/m² for a simple ground-floor addition such as a bedroom or modest living-area expansion, rising to $3,000–$5,000/m² once wet areas — a new bathroom, laundry or kitchen — sit in the footprint, and above $4,500/m² for luxury finishes or complex structural work. Higher again when connecting to an old timber structure. | A$2,500 — A$4,500 |
Full bathroom renovation Based on Leadkit's Brisbane bathroom renovation guide (14 August 2026), compiled from contractor quotes and current Queensland rates alongside Master Builders Queensland and HIA data: a mid-range full renovation of a standard 3×1.5 m room runs $18,000–$30,000, a cosmetic refresh $8,000–$15,000, and a luxury fit-out $35,000–$60,000+. Queenslanders and high-set timber homes add $2,000–$6,000 for floor set-down and subfloor framing before tiling starts. Premium finishes and reconfigured plumbing push past $35,000. | A$18,000 — A$35,000 |
What kind of build — and why the per-m² rate swings so much
A standard project-home finish runs about A$2,200–3,500/m² in 2026; custom and architectural homes commonly sit at $3,500–$5,500+/m². The rate covers the house itself — not the land, and usually not site costs, driveway or landscaping, which is where first-time budgets blow out. A sloping or heavily treed block, difficult access, or a long service run to connect power, water and sewer can add tens of thousands before a single wall goes up. Get these itemised in the contract rather than left as an assumption.
Raising and building in under a Queenslander
The classic Brisbane move is to take a high-set timber 'Queenslander', raise it, and build a new level underneath — turning a two-bedroom cottage into a full family home without buying more land. A raise-and-build-under project typically runs A$250,000–500,000 in 2026; the physical raising of the structure alone is roughly $40,000–$100,000 of that, and the rest is the new lower level, re-stumping and re-connecting services. The spread is wide because it's driven by block slope, how much ceiling height you gain, and how much plumbing and electrical has to be re-routed. It's specialised work — use a builder who does it regularly, not one doing their first.
Extensions and renovations
A ground-floor extension or room addition typically runs A$2,500–4,500/m² in 2026 — higher than a new build per square metre, because the crew works around an existing structure and ties new footings, roofline and services into old ones. It climbs further when the new footprint includes a kitchen or bathroom, or when connecting into an old timber frame that has to be opened up and made good. A full bathroom renovation on its own is typically A$18,000–35,000. Old Brisbane homes hide surprises — rot, non-compliant old wiring, and asbestos, which the national Asbestos Safety and Eradication Agency says was phased out of Australian building products by 1990 and can be found in buildings built or renovated before then. Build a contingency into the budget.
Licence and warranty — the checks that protect your money
In Queensland, any building work valued over $3,300 must be carried out by a QBCC-licensed contractor, and that same $3,300 threshold makes home-warranty insurance mandatory: the builder must take out cover under the Queensland Home Warranty Scheme, which protects you up to $200,000 if they don't finish or the work is defective. Before you sign, check the builder's licence on the QBCC register and confirm the warranty premium appears in your contract. If you're doing the work yourself, the $11,000 figure you'll see quoted is narrower than it looks. Work you perform personally on your own land escapes the contractor-licence requirement only where it is worth no more than $11,000 and it is not work within the scope of an occupational licence (QBCC Regulation 2018 sch 1 s 33(1)). Plumbing and drainage, gas work and chemical termite management are occupational-licence work, so they need the right licence at any value — no dollar figure lets you do them yourself. Owner-performed fire protection and mechanical services work has its own much lower $1,100 ceiling. Above $11,000 on the work that is covered, you need an owner-builder permit.
Common questions
Is it cheaper to build new or raise-and-build-under?
It depends on your block and what you already own. If you own a well-located Queenslander, raising and building under ($250k–500k) usually gets you a full family home for less than buying land and building new from scratch — and keeps the character and the location. From a bare block, a standard project home at $2,200–3,500/m² is the cheaper path per square metre. The land you already have is usually the deciding factor.
Do I need a QBCC-licensed builder, or can I manage it myself?
Any single job of building work valued over $3,300 must be done by a QBCC-licensed contractor — but $3,300 and $11,000 are not the whole gate. Some work needs a licence at any value at all: plumbing and drainage, drainage, gasfitting, chemical termite management, fire protection, building design, site classification, and completed residential building inspection. Hydraulic services design is licensed above $1,100. (Mechanical services is on that any-value list too, but QBCC Regulation 2018 sch 1A takes class 1a and class 10 work out of the definition of mechanical services work, so on a house the ordinary $3,300 test is what applies.) Work you perform personally on your own land escapes the contractor-licence requirement only up to $11,000 and only where it is not within an occupational licence's scope — plumbing and drainage, gas work and chemical termite management are carved out, so no dollar figure lets you do those yourself. A job under $3,300 also still needs a licensed contractor when it forms part of a contract worth more than $3,300, so a big project cannot be split into small ones. For a whole house or a raise-and-build, almost everyone uses a licensed builder — and the mandatory home-warranty insurance that comes with it.
What does the per-square-metre price NOT include?
Usually the land, site costs (earthworks, retaining, connecting services), driveway and landscaping — and sometimes fittings allowances set low so the headline rate looks competitive. On a sloping or treed Brisbane block, site costs alone can run into the tens of thousands. Ask for these as itemised lines, not a single 'provisional sum'.
How do I check a builder is properly licensed?
Search the builder's name or company on the QBCC licence register before you sign anything, and confirm the licence class covers the work you're having done. Also confirm your contract lists the Queensland Home Warranty Scheme premium — its absence on a job over $3,300 is a red flag.
Sources & when we checked them
- ·QBCC — When you need a licence (licence required for building work over $3,300; owner-builder up to $11,000) (checked 2026-07-31)
- ·QBCC — Queensland Home Warranty Scheme (mandatory insurance on residential work over $3,300; up to $200,000 cover) (checked 2026-07-31)
- ·Queensland Building and Construction Commission Regulation 2018 — sch 1 s 2 (work of $3,300 or less, and its exceptions) and sch 1 s 33 (work performed personally by owners of land) (checked 2026-08-14)
- ·Asbestos Safety and Eradication Agency — asbestos was phased out of building products by 1990 and banned in 2003 (checked 2026-08-14)