Renovation cost per square metre in Australia (2026)

Ask ten renovators what a job costs and you'll get ten numbers, because they're all quoting different scopes on different houses. The one figure that lets you compare like with like is renovation cost per square metre in Australia — the dollar rate you apply to your floor area to get a ballpark before a single tradie has walked the site. It's how quantity surveyors, builders and lenders all sanity-check a budget, and for a flipper it's the fastest way to know whether a deal even pencils before you spend money on quotes.

This is a 2026 guide to what that rate actually is, where it changes, and how to use it without getting burned. It's general information, not a fixed quote — your real number depends on the house, the scope and the market — but it will get you close enough to make a buy-or-walk call.

What "cost per square metre" actually means (and where it breaks)

The idea is simple: take the total renovation cost and divide by the floor area you're touching. Renovate 120m² for $300,000 and your rate is $2,500/m². Flip that around and you can budget forward — pick a rate for your scope, multiply by area, and you've got a starting figure before you've paid for a single quote.

The Archicentre Australia CostGuide 2026 puts a renovation of an existing home at roughly $1,600 to $3,900 per square metre, and extensions or new construction higher again at about $2,700 to $5,100 per square metre. That's the band every other number in this guide sits inside, and it's the one I'd anchor to because it comes from an architects' cost guide rather than a lead-generating quote page.

Where the method breaks is the wet areas. A kitchen or bathroom can cost three or four times the per-m² rate of the bedroom next door, because the cost isn't in the floor — it's in the cabinetry, tiling, plumbing and waterproofing packed into a small footprint. So a whole-house rate is fine for a rough budget, but the moment your scope is "gut the kitchen and two bathrooms," per-m² will lowball you. Use it to screen a deal, then price the actual scope properly.

Cosmetic vs structural: renovation cost per square metre by scope

Where you land inside the Archicentre band comes down to scope. Three tiers cover most flips:

• Cosmetic — paint, flooring, a kitchen and bathroom refresh, new fittings, landscaping. This sits at the bottom of the range, roughly $1,600 to $2,200/m², and it's where most first flips should live. Nothing moves, nothing structural, fast turnaround.
• Mid-range (cosmetic-plus) — new kitchen and bathrooms, re-wiring or re-plumbing sections, some reconfiguration, new windows. Call it $2,200 to $3,200/m². This is the sweet spot for a lot of flips: enough work to reprice the house, not so much that you're fighting the structure.
• Structural — moving or removing walls, extending, re-roofing, underpinning, new services throughout. Top of the band and beyond, $3,200/m² and up, and it's where timelines and budgets blow out. Extensions push into that higher $2,700–$5,100/m² new-build range because you're building, not renovating.

The trap for beginners is buying at a cosmetic price and discovering a structural job once the walls are open. That's why the contingency matters: hold 10% at an absolute minimum, and 15% to 20% on anything built before 1980, because that's where the surprises hide behind the plaster. And when a job climbs into that structural tier, it's worth checking the knockdown rebuild vs renovate maths — past a point, rebuilding can cost less than fixing what's there.

Kitchen and bathroom: where the money actually goes

If you only remember one thing, make it this: kitchens and bathrooms carry most of the cost and most of the resale value, so they're where scope creep does the most damage.

The HIA's annual Kitchens & Bathrooms Report — the recognised industry benchmark — puts a national median kitchen renovation in the low-to-mid $30,000s and the average bathroom at around $26,000. In practice the ranges look like this:

• Kitchen: roughly $8,000–$20,000 for a cosmetic refresh, $25,000–$45,000 for a mid-range remodel with semi-custom cabinetry and a stone benchtop, and $45,000 to well over $100,000 for a premium custom build.
• Bathroom: roughly $5,000–$15,000 for a cosmetic makeover, around $20,000–$30,000 for a full mid-range renovation, and $35,000-plus for a high-end transformation.

For a flip, the discipline is to spend where a buyer sees it and then stop. A crisp mid-range kitchen and bathroom will do more for your resale than a bespoke one that eats the margin. This is exactly the scope where a per-m² rate misleads you, so price these rooms as line items, not as floor area.

City differences: Sydney, Melbourne, Brisbane

The same scope costs different money depending on where the tradies are. Labour rates, material freight, council requirements and buyer expectations all move the number.

• Sydney is the dearest, commonly running 20% to 40% above the national average. A full renovation lands around $1,800–$4,500/m² depending on finish.
• Melbourne sits just behind Sydney, broadly $1,500–$4,000/m² for comparable scope.
• Brisbane is still cheaper than the southern capitals but climbing fast: cosmetic work around $2,100–$3,300/m², standard quality $3,300–$4,700/m², and high-end finishes $4,500–$6,900/m².

Regional markets can be cheaper on labour but pricier on trade availability and freight, so a "cheap" regional flip can carry a longer timeline that quietly stacks up holding costs. Whatever your market, take the national Archicentre band as your anchor and adjust up for Sydney, down for regional Queensland or South Australia.

Estimating before you buy

Per-square-metre is a screening tool, not a quote. Here's how I use it on a deal:

1. Measure the area you're actually touching — not the whole house if you're only doing half of it.
2. Pick a rate for your scope from the tiers above, adjusted for your city.
3. Multiply, then add the wet areas as line items on top, because the rate underprices them.
4. Add a contingency — 10% minimum, more on an older house.
5. Feed the number into the whole deal, not just the reno. The reno is one bucket; stamp duty, holding and selling costs decide whether it's a flip or a lesson.

You can do the per-m² maths in your head, but I'd run it through the renovation cost calculator so the scope, area and contingency all sit in one place and get priced against the 2026 band. If you'd rather get a costed range on a specific property in about a minute, the Reno Estimator in the app does it from your address and scope. And because the reno is only part of the picture, drop the result into the flip ROI calculator or read the full cost to flip a house in Australia breakdown before you make an offer.

Get the per-square-metre rate right and you'll screen deals in minutes instead of paying for quotes on houses that were never going to work. Get the scope and the wet areas right on top of it, and the number you carry into the offer is the number you actually spend.

This is general information only and not financial or construction advice. Renovation costs vary by site, scope, finish, timing and market, and the figures here are indicative 2026 ranges from the sources named. Get itemised quotes for your own project before you commit.

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