Date Published: July 17, 2026, Last Updated on July 17, 2026 by Bradley Ashcroft
One of the first questions homeowners ask when planning a renovation is, “How much will it cost?” The answer is rarely straightforward because every project is different. The renovation cost in Brisbane can vary significantly depending on the size of the project, the condition of the existing home, and the type of changes being made.
Some renovations involve simple updates to finishes and fittings, while others require structural work, layout changes, service upgrades, or council approvals. These factors can have a major impact on the overall budget and often explain why renovation costs can differ so widely from one project to another.
If you are considering working with a renovation architect in Brisbane, understanding what drives renovation costs can help you set realistic expectations and make more informed decisions before construction begins.
Thinking about renovating your home? Book a consultation with our Brisbane architects on (07) 3206 0239 to discuss your plans.
What Affects Renovation Cost in Brisbane?
The cost of a renovation is influenced by far more than the size of the project. Two renovations of a similar footprint can have very different budgets depending on the complexity of the work and the condition of the existing home.
Some of the biggest factors that influence renovation costs include:
- the size and scope of the renovation
- whether structural changes are required
- the number of kitchens, bathrooms, or wet areas being renovated
- plumbing, electrical, and air conditioning upgrades
- site access and physical constraints
- council approvals or specialist consultants that may be required
- the quality of materials and finishes selected
Older homes can also present unexpected challenges. Hidden issues such as outdated wiring, water damage, asbestos, or structural deficiencies may only become apparent once construction begins and can affect the overall budget.
For broader industry information on building and renovation considerations, Master Builders Queensland provides useful guidance for homeowners planning renovation projects.
Understanding these factors early can help establish more realistic expectations and reduce the likelihood of unexpected costs as the renovation progresses.
Cosmetic Renovation vs Structural Renovation Costs
Not all renovations involve the same level of complexity, which is why costs can vary considerably from one project to another.
Cosmetic renovations generally focus on updating the appearance of a home without significantly changing how it functions. This might include replacing flooring, repainting, updating cabinetry, or renovating a kitchen or bathroom while keeping the existing layout. These projects are often more straightforward because they involve fewer trades and less disruption to the structure of the home.
Structural renovations are different. They may involve removing walls, extending living areas, reconfiguring layouts, or making significant changes to how the home works. These projects often require additional planning, documentation, engineering input, and coordination between multiple consultants and trades.
In many cases, it is the complexity of the renovation rather than the size of the project that has the greatest impact on cost. Understanding the difference early can help homeowners set more realistic expectations and determine the level of planning and design input their renovation may require.
If you are unsure whether your project is a straightforward upgrade or a more complex renovation, our guide on Do You Need an Architect for a Renovation or Is a Builder Enough explores when architectural input can add value to a renovation project.
Typical Renovation Cost Ranges to Keep in Mind
One of the biggest challenges when discussing renovation costs is that no single price applies to every project. The renovation cost in Brisbane can vary significantly depending on the age of the home, the complexity of the work, and the standard of finishes being selected.
Even so, it helps to have a rough sense of scale. The ranges below are general market indications for Brisbane. They are a planning guide, not a quote.
| Renovation type | Typical Brisbane range* | What’s usually included |
| Cosmetic refresh (paint, flooring, fixtures) | $30,000 – $80,000 | No structural change, no plumbing relocation |
| Kitchen renovation | $30,000 – $60,000+ | Mid-range finishes; add more if plumbing or walls move |
| Bathroom renovation | $25,000 – $50,000+ | Full strip-out, waterproofing, mid-range fixtures |
| Single-storey extension | $4,000 – $6,000 per m² | New footprint, roofing, services to new areas |
| Whole-home renovation | $3,000 – $5,000+ per m² | Standard to high-quality finish; structural work pushes the upper end |
| Raise and build under (Queenslander) | $400,000 – $700,000+ | House raise, new lower level, restumping, compliance |
Indicative market ranges based on current Brisbane industry data, including guidance from Master Builders Queensland, current at the time of writing. Site conditions, finish level and structural scope can move any project outside these ranges — these are market indications, not a quote from us.
Two simple things to keep in mind:
- The bottom of a range is rarely where you land. Budget from the middle, not the lowest figure, and add a contingency on top.
- Cost per square metre is a planning tool, not a pricing tool. It helps you check whether your brief and your budget belong in the same conversation. It is not how a project is actually quoted. Site constraints, structural requirements, and hidden conditions in an existing home all affect the real figure.
Rather than focusing on a single number, it is often more helpful to think about the scope and complexity of your renovation. That will usually give you a far clearer picture of likely costs than a general pricing guide alone.
The Queenslander Factor
Do you own a Queenslander or a post-war timber home? In suburbs like Paddington, Ashgrove, Camp Hill and Red Hill, there is a good chance you do. If so, your renovation maths is a little different from day one.
Character homes bring three cost factors that general renovation guides often miss:
Raising and building under. Many Queenslanders already sit on stumps. That makes it possible to lift the house and build a new level underneath. On small inner-city blocks, this is sometimes the only way to add real space. The raise itself is the smaller part of the cost. The bigger costs sit in the new lower level — structure, services, stairs and finishes — and in the compliance work. These are major projects, which is why they sit at the top of the range table above.
Restumping and structural work. Many character homes need restumping or footing repairs before anything else can happen. It is not glamorous, and it will not show in the after photos. But it is foundational, so it belongs in the budget from the start, not as a mid-project surprise.
Character overlays. Your home may sit within a Brisbane City Plan character overlay. If it does, there are rules about what can change externally, especially anything visible from the street. This is not a reason to avoid renovating. It is a reason to design with the overlay in mind from the beginning. Handled early, the overlay shapes the design. Handled late, it can cause redesign, resubmission and delay, and all of that adds cost.
This is where architectural input earns its keep on character homes. The constraints are real. But a design that works with them tends to move through approval more smoothly and avoids expensive rework later.
Where Homeowners Often Underestimate Renovation Costs
Many renovation budgets focus on the visible elements of a project, such as new kitchens, bathrooms, flooring, and finishes. However, some of the biggest costs can come from items that are less obvious at the beginning.
For example, older homes may require upgrades to plumbing, electrical systems, or structural elements that are only discovered once work begins. Site constraints, difficult access, or hidden issues behind walls and ceilings can also affect the scope of work and increase costs.
Another common issue is making changes during construction. Adjusting layouts, relocating services, or altering design decisions after work has commenced can lead to additional expenses and delays that could often have been avoided with more planning upfront.
It also helps to set aside a contingency. For most renovations, allow 10–15% of the construction budget. For older homes, sit at the higher end, because the condition of the structure is often unknown until work begins. Renovations are rarely fully predictable, especially with existing homes, which is why realistic expectations and early planning matter so much.
Cost vs Value: Thinking Beyond the Initial Budget
While cost is an important part of any renovation decision, it is equally important to consider the value the project will deliver over time.
A well-planned renovation can improve how a home functions every day. Better layouts, increased natural light, improved storage, and stronger connections between living spaces often have a lasting impact on comfort and liveability. In many cases, these benefits can be just as valuable as the physical upgrades themselves.
Focusing only on the lowest upfront cost can sometimes lead to missed opportunities or compromises that need to be addressed later. Investing in thoughtful planning and design from the beginning can help create a home that not only looks better but works better for the people living in it.
As explored in our guide on What Actually Makes a Renovation Successful?, the most rewarding renovations are often those that solve the right problems and improve the way a home is experienced long after construction is complete.
How an Architect Can Help Manage Renovation Costs
While an architect cannot remove all uncertainty from a renovation, good planning can help reduce unnecessary costs and make better use of the available budget.
An architect looks at the project as a whole and helps establish clear priorities early in the process. This may involve identifying the most effective layout changes, resolving potential issues before construction begins, and exploring design solutions that deliver the greatest value for the investment being made.
Clear documentation and thoughtful planning can also help minimise changes during construction. The more decisions that are resolved upfront, the less likely it is that costly variations or compromises will arise later in the project.
For homeowners planning a more complex renovation, working with a renovation architect in Brisbane can provide greater clarity around the scope of work and help ensure the budget is being directed towards improvements that will have the most meaningful impact on how the home functions and feels.
Planning Your Renovation with Confidence
There is no single answer to how much a renovation will cost. Every home is different, and the final budget is influenced by factors such as the scope of work, the complexity of the design, the condition of the existing property, and the level of finishes being selected.
The most successful renovations usually begin with realistic expectations and careful planning. Understanding what drives costs and where potential challenges may arise can help homeowners make more informed decisions and reduce the likelihood of unexpected surprises during construction.
Whether you are considering a simple update or a more significant transformation, taking the time to understand your goals and plan properly from the outset can make a meaningful difference to both the renovation experience and the final outcome.
Thinking about renovating your home? Book a consultation with our Brisbane architects on (07) 3206 0239 to discuss your plans and explore what may be possible for your property.
Frequently Asked Questions
How much does it cost to renovate a house in Brisbane?
Most substantial Brisbane renovations fall between roughly $3,000 and $5,000 per square metre for a standard to good-quality finish. Cosmetic work sits below that range, and structural or character-home projects sit above it. The biggest variables are structural change, wet areas, and the condition of the existing home.
Is it cheaper to renovate or knock down and rebuild?
It depends on how much of the existing home is worth keeping. If the structure is sound and the layout broadly works, renovating usually wins. If the home needs replacing from the stumps up, a rebuild can cost less. Keep in mind that character overlays rule out demolition for many Brisbane homes. A feasibility assessment answers this question for your specific property.
How much does it cost to raise a Queenslander and build under?
The raise itself is the smaller part. The full project, new lower level, restumping, services and compliance, typically runs well into six figures, and substantial projects often sit at the top of the range in our table above. Scope, finish level and site conditions drive the spread.
How much should I allow for contingency?
For most renovations, allow 10–15% of the construction budget. For older homes, sit at the higher end, as pre-war timber homes in particular can hide problems until work begins.
Do I need an architect for a renovation in Brisbane?
Not legally for every project. But architectural input often saves more than it costs on structural work, character-overlay homes, and any renovation where the brief and the budget are in tension. The savings come from better design, smoother approval, and fewer construction variations.
