Cost Of Building A House Calculator — Australia
Get a fast, honest planning range built on real 2026 market rates. When you’re ready to compare builders properly, Matrix prepares an independent cost estimate and Builder Pricing Schedule from your actual plans.
Construction cost calculator
A fast planning range by type, finish, method, size and city.
Options adjust automatically — not every method suits every house type and finish.
This is a ballpark. When you’re ready, get an independent trade-by-trade estimate measured from your actual plans — one Builder Pricing Schedule every builder quotes from, so prices compare like-for-like.
Fixed-fee proposal usually back within 1 business day. Not ready for a full estimate? The $29 guide shows you how to budget and compare quotes yourself.
Includes typical site works, builder’s margin and basic landscaping. Excludes GST. Final prices depend on measured drawings, selections, allowances, exclusions and site conditions.
The Homeowner’s Guide to Building & Budgeting
Read a builder’s quote the way a quantity surveyor does — and see exactly what has been left out of it.
- A six-stage map of a complete build, from design and approvals to handover
- Prime Costs, Provisional Sums, preliminaries, margin, GST and contingency — in plain English
- A worked comparison showing why the apparently cheaper quote can cost more
- Budget tracker, inclusions and exclusions worksheet, three-quote comparison sheet
three phone-friendly checklists included
You Can’t Compare Builder Quotes Yet
Prices can land six figures apart because each builder is pricing a different version of the job. We measure your actual plans, then issue one Builder Pricing Schedule so every builder quotes like-for-like.
Request a Fee ProposalSee What Your Builders Price From
See the blank version of the same pricing schedule — the one you issue to Builder 1, Builder 2 and Builder 3 so they all price the same job.
Download a Sample
What it costs to build a house in Australia
The cost of building a house in Australia in 2026 broadly runs $2,100–$5,000+ per square metre, with where you land driven by finish level, construction method, number of storeys and location. Our free cost of building a house calculator and construction cost estimator give you a tailored ballpark in seconds. For scale: the ABS recorded $43.9 billion of building work done and 53,567 new dwellings commenced nationally in the December 2025 quarter. The ranges below come from our own 2026 rate data — sanity-check the calculator above, then get a line-by-line estimate when you need the real number.
Cost per square metre by finish level
| Finish | Cost / m² |
|---|---|
| Basic / project standard | $2,100–$3,000 |
| Medium standard | $2,500–$3,700 |
| High standard | $3,500–$5,000 |
| Prestige / architectural | $5,000–$8,500+ |
Cost per square metre by construction method
| Method | Cost / m² |
|---|---|
| Weatherboard / lightweight | $2,300–$4,200 |
| Brick veneer | $2,500–$4,900 |
| Full / double brick | $2,800–$5,400 |
Cost of building a house by city
Where you build has a major impact on the final cost. Labour availability, material freight, site conditions, local subcontractor rates and market demand can all shift the rate per square metre. Sydney is typically one of the highest-cost markets, while Melbourne, Brisbane, Perth and Adelaide vary depending on current trade demand and project complexity.
Our cost of building a house calculator prices all five capitals using Matrix Estimating’s 2026 residential cost data. These figures are intended as indicative standard-to-high-finish ranges only and should be treated as a starting point, not a fixed construction price.
| City | Indicative cost / m² |
|---|---|
| Sydney | $2,600–$4,200 |
| Melbourne | $2,500–$4,000 |
| Brisbane | $2,400–$3,800 |
| Perth | $2,500–$4,000 |
| Adelaide | $2,300–$3,800 |
What changes your building cost the most
Construction method & materials
Cladding and structure shift the rate more than almost anything else. For a like-for-like finish, lightweight weatherboard sits below brick veneer, and full or double brick adds more again — before concrete and material price movements are counted.
Site & slope
A steep or constrained block needs excavation, retaining and extra footings, plus harder access for trades. It’s the single biggest cost a calculator can’t see — and the most common source of budget blowouts.
Finish level
Fixtures, joinery and fit-out are roughly a quarter of the build. Moving from a standard to a premium specification adds the most cost per dollar of any single choice you’ll make.
Location
Capital-city labour, freight and compliance cost more than regional areas. The calculator adjusts for your city, but local trade availability and demand still move the final number.
Design complexity
Multiple storeys, cantilevers, large spans and bespoke detailing add structural and labour cost well beyond the extra floor area — two homes of the same size can differ by hundreds of thousands.
Market conditions
Inflation, trade demand and material lead times shift pricing through the year. We price against current 2026 rates, not last year’s, and review them before every estimate.
What’s actually inside a $1.38M build?
Most calculators stop at a per-m² figure. Here’s how a real home looks once it’s measured — every element priced as its own line, the way your builder’s costs are built up. This is an illustrative elemental summary for a high-standard two-storey Sydney home; a smaller project-home build lands well below it, and your own project is measured individually off your plans.
Elemental cost summary
Two-storey home · 340 m² GFA · high-standard finish · incl. residential lift| Code | Element | Cost (ex-GST) | % of build |
|---|---|---|---|
| SB | Substructure | $14,040 | 1.0% |
| CL | Columns | $15,300 | 1.1% |
| UF | Upper floors | $30,400 | 2.2% |
| SC | Staircases | $34,200 | 2.5% |
| RF | Roof | $70,195 | 5.1% |
| EW | External walls | $111,518 | 8.1% |
| WW | Windows | $61,600 | 4.5% |
| ED | External doors | $21,000 | 1.5% |
| NW | Internal walls | $24,072 | 1.7% |
| ND | Internal doors | $9,923 | 0.7% |
| WF | Wall finishes | $19,380 | 1.4% |
| FF | Floor finishes | $57,882 | 4.2% |
| CF | Ceiling finishes | $20,930 | 1.5% |
| FT | Fitments & equipment | $180,880 | 13.1% |
| SF | Sanitary fixtures | $23,645 | 1.7% |
| PD | Hydraulic services | $65,320 | 4.7% |
| VE | Ventilation | $2,700 | 0.2% |
| AC | Air conditioning | $18,500 | 1.3% |
| FP | Fire protection | $1,400 | 0.1% |
| LP | Electric light & power | $38,340 | 2.8% |
| TS | Transportation services (lift) | $85,000 | 6.2% |
| XP | Demolition & site preparation | $31,885 | 2.3% |
| XR | Roads, footpaths, paved areas | $16,500 | 1.2% |
| XL | Landscaping & improvements | $32,458 | 2.4% |
| XN | External fencing & gates | $66,540 | 4.8% |
| Building works subtotal | $1,053,608 | 76.5% | |
| PR | Preliminaries | $126,433 | 9.2% |
| OH | Builder’s overheads & margin | $59,002 | 4.3% |
| Construction cost subtotal | $1,239,043 | 89.9% | |
| XX | Consultants & additional fees | $47,202 | 3.4% |
| YY | Contingency (5%) | $64,312 | 4.7% |
| ZZ | Escalation (4% p.a., 6 months) | $27,011 | 2.0% |
| Total (excl GST) | $1,377,568 | 100% | |
| GST | $137,757 | ||
| Total (incl GST) | $1,515,325 |
A measured estimate, not a per-m² guess
A per-m² rate is a starting point. An independent quantity surveyor puts you in control of the real number: your home is measured with professional takeoff software like CostX and Buildsoft and priced exactly as a builder would — every wall, window, door, finish and fitting accounted for, upfront, to recognised quantity surveying standards.
- A detailed Bill of Quantities and clear cost spreadsheet — no missing items, no guesswork
- Issue the same BOQ to several builders for genuine apples-with-apples quotes
- Fewer variations and far less risk of budget blowouts once you’re on site
Explore our quantity surveying and construction cost estimating services, or see our guide to commercial building cost in Australia.
Building cost questions, answered
How much does it cost to build a house in Australia?
How much does it cost to build a 3-bedroom house?
How much does it cost to build a 4-bedroom house in Australia?
How much does it cost to build a two-storey house?
How much does a house extension or second-storey addition cost?
How much does it cost to rebuild a house (for insurance)?
Is it cheaper to build or buy a house in Australia?
What is the most expensive part of building a house?
Can I build a house for $300,000 in Australia?
What’s the cheapest way to build a house?
How long does it take to build a house in Australia?
How accurate is a building cost calculator?
What’s included in the estimate, and is GST in it?
Our services & cost guides
Quantity surveying
Bills of Quantities, tender reviews and independent cost reports from an experienced estimating team.
See how it works → ServiceConstruction cost estimating
Line-by-line build estimates, priced exactly the way your builder would.
Get an estimate → Cost guideCommercial building cost
2026 rates by building type, city and finish — our in-depth commercial guide.
Read the guide →Need a detailed estimate for finance or lender review?
Send us your plans and we’ll turn them into a measured, line-by-line estimate. We’ll get back to your initial enquiry within 24–48 hours, anywhere in Australia.
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1
Send your plans or a short brief.
Even rough sketches or a description of the build is enough to start. -
2
We price it line by line.
A quantity surveyor measures and costs it the way your builder would — no per-m² guesswork. -
3
You get a clear estimate back.
Typically within 24–48 hours, anywhere in Australia.
Rated 5.0 on Google. Clients come to us for one thing — a number they can actually build to.