An office fitout cost breakdown tells you very quickly whether your expectations match reality. We’ve had clients walk in thinking $500K will deliver a premium office, only to realise halfway through that the building can’t even support what they want without major upgrades.
The numbers matter, but what matters more is what those numbers actually buy you.
Let’s walk through three real-world fitout cost examples so you can see where the money goes and what you end up with. If you’re still early in planning, it’s worth reviewing a commercial office fitout checklist for Brisbane businesses to understand what needs to be considered before budgeting.
Understanding Office Fitout Cost Per m2 in Australia
Most people start by asking about office fitout cost per m2 in Australia. It’s a fair question, but it only gets you halfway there.
You’ll generally see ranges from $1,200 to $4,000 per square metre. That sounds helpful until you realise two offices in the same building can land at completely different numbers.
One tenant keeps the existing air conditioning, lighting, and ceilings. Another strips everything back, upgrades power, adds new mechanical zones, and installs custom joinery throughout. Same size, very different commercial fitout budget.
The building itself plays a big role. Older buildings often need electrical upgrades just to support modern workstations. Limited ceiling space can drive up mechanical costs. Base building constraints can quietly add six figures if you don’t pick them up early. You can see how this plays out in real projects in this guide on commercial office fitout costs explained for building owners.
That’s why a proper office fitout cost breakdown tied to your site is far more useful than a generic rate. For broader benchmarks, the Australian Bureau of Statistics construction data gives useful context on construction pricing trends.
$500K Office Fitout Cost Breakdown
A $500K office fitout cost breakdown usually applies to smaller tenancies or projects where you’re working with what’s already there.
Think 200 to 400 square metres in an existing office building.
This is where you focus on getting a functional workspace up and running without overcomplicating it.
You’ll typically see:
- Open plan workstations with a few enclosed offices or meeting rooms.
- Basic breakout area.
- Standard finishes like carpet tiles, painted walls, and simple joinery.
Most of the budget goes into services and making the space compliant. Electrical work, new data cabling, modifying lighting, and adjusting existing air conditioning so it actually works with your layout.
If the building has limited power or ageing systems, this is where the budget gets tight very quickly. We’ve seen projects where a switchboard upgrade alone takes a big chunk out of the spend before you’ve even touched finishes.
What you end up with is clean and practical. It works for your team. It does not try to impress anyone.
Where things go wrong at this level is usually hidden costs. You open up ceilings and find issues. Air conditioning doesn’t have the capacity you were told. Suddenly your commercial fitout budget is being spent fixing problems instead of improving the space. Many of these issues are covered in common office fitout mistakes that cause budget blowouts.
$1M Office Fitout Cost Breakdown
At the $1M level, the conversation changes. You’re no longer just fitting out a space. You’re shaping how people actually work in it.
A $1M office fitout cost breakdown typically covers 300 to 700 square metres, depending on the level of finish and building condition.
You’ll see a clear shift in where the money goes.
There’s more focus on layout and flow. More meeting rooms, quiet rooms, and spaces for collaboration. A proper kitchen or breakout area that people actually use.
Joinery becomes a serious cost. Reception desks, boardroom storage, integrated cabinetry. These are no longer off the shelf. It is common for joinery packages alone to run well into six figures at this level.
Services also step up. Instead of patching old lighting, you’re installing new layouts. Air conditioning gets re‑zoned so different areas can operate properly. Power capacity is reviewed so you are not overloading circuits every time the office fills up.
This is also where clients start adding brand elements. Feature walls, signage, finishes that reflect the business. Not over the top, but enough to feel considered.
What you get is a space that supports different ways of working. It feels planned, not thrown together. If you’re deciding how to approach delivery, it helps to understand what is design and construct (D&C) in office fitouts.
Where it goes wrong is scope creep. It happens all the time. One extra meeting room. Better finishes in the boardroom. Upgraded kitchen. Before long you are $150K to $250K over and trying to justify it internally. This is exactly why projects fail without planning, as explained in why office fitout projects go over budget in Melbourne and how to prevent it.
Without early cost planning and contractor input, a $1M project can drift fast.
$3M Office Fitout Cost Breakdown
A $3M office fitout cost breakdown sits in a different category altogether.
This is usually a large tenancy, often 800 square metres or more, or a high‑profile CBD space where the finish needs to match the brand.
At this level, you are not just building an office. You are building an environment that influences how people feel when they walk in.
The scope is much broader.
- High‑end finishes across the entire space.
- Custom joinery everywhere.
- Large breakout zones, multiple collaboration areas, and often dedicated client‑facing spaces.
Technology becomes a major investment. AV systems, meeting room screens, structured cabling, and control systems can easily run into six figures on their own.
Services are often completely reworked. New mechanical systems, upgraded electrical infrastructure, and detailed coordination with the base building. In older buildings, this can involve serious planning just to make everything fit.
We’ve seen projects where mechanical upgrades alone run into hundreds of thousands because the base building simply wasn’t designed for modern density.
You might be staging the project across multiple areas while teams are still working. That adds time, coordination, and cost, especially in live environments. This is where early contractor involvement in office fitouts becomes critical.
What you end up with is a space where every decision matters. Clients notice it. Staff use it properly. It supports the business, not just houses it.
Where things go wrong at this level is poor planning at the start. If feasibility is rushed or skipped, the cost of fixing mistakes later is significant. Programme delays, redesign, compliance issues. It adds up quickly.
Why Fitout Cost Examples Matter More Than Averages
Averages don’t show you where the money actually goes.
Two offices can both sit at $2,000 per square metre and look completely different. One reused services and spent on finishes. The other upgraded infrastructure and kept finishes simple.
Without a proper office fitout cost breakdown, you are making decisions blind, and that’s how budgets blow out.
Real fitout cost examples give you context. They show you what trade‑offs look like. More meeting rooms means less budget for finishes. Upgrading services means scaling back elsewhere. If you’re weighing options, this guide on office refurbishment vs fitout what’s the difference can help clarify direction.
Planning Your Commercial Fitout Budget Properly
Most budget blowouts start before construction even begins.
A tenant signs a lease based on a rough number. The landlord promises the space is ready to go. Then design starts and the real costs come out.
We see it all the time.
The smart move is to start with feasibility. Look at the building properly. Understand what it can and cannot support. Map out your requirements and test them against your budget before you commit. You can see how this process works in office fitout timeline from feasibility to handover.
This is where having one team handle both design and construction makes a difference. You get buildable solutions from day one, not designs that need to be reworked later. If you’re comparing approaches, review design and construct vs traditional tendering for office projects.
It saves time because you’re not redesigning halfway through construction. It avoids rework because the design is built around real site conditions from day one.
Talk To A Team That Can Map Your Fitout Properly
If you are planning a fitout in Melbourne or Brisbane, the easiest way to get clarity is to walk through your project with someone who actually builds these spaces.
At O’Neills Design & Construction, we break down your office fitout cost early so you know exactly what your budget delivers. We look at the building, the constraints, and the risks before anything is locked in.
If you are unsure whether your budget is realistic, or you want to see what it can actually achieve, reach out through the contact us page and have a conversation. It will give you a clear direction before you commit to anything.