Why Building Costs in Melbourne Aren't Coming Down (and How to Plan Around Them)
Updated: 6 days ago
Melbourne house prices have softened, so why haven't building costs followed? Here's what's really driving construction costs in Melbourne in 2026, and how to plan a new home, renovation or extension with confidence.
If you've been thinking about building a new home or renovating in Melbourne, you've probably noticed a strange mismatch. Property prices have dipped over the past year, yet the quotes for building work haven't come down with them.
It's one of the most common questions we hear from homeowners right now. The short answer is that building costs in Melbourne are driven by very different forces from house prices. Understanding those forces is the first step to planning a build that stays on budget.
Why building costs in Melbourne aren’t falling
House construction costs across Australia are now 51% higher than before COVID, according to the National Housing Supply and Affordability Council's August 2026 report. And they're still rising. Rider Levett Bucknall forecast construction costs in Melbourne to rise by around 4% in 2026. Four forces are keeping them high.
1. A national shortage of skilled trades
Victoria, like the rest of Australia, doesn't have enough carpenters, electricians, plumbers and other skilled trades to meet demand. Home builders are now also competing with large projects such as “the big build” and data centres for the same tradespeople, which pushes wages up further. Labour is a major part of any build, so when trades are scarce, costs rise.
2. Materials prices are higher, and less predictable
Material price rises have slowed since the post-pandemic peak, but they haven't reversed. Global events, and local energy scarcity , continue to push up the cost of energy, freight and the production of many building products.
3. Higher standards for energy efficiency and compliance
New homes and major renovations in Victoria must now meet higher energy-efficiency standards, including 7-star energy ratings under the National Construction Code. Better insulation, glazing and sealing make homes more comfortable and cheaper to run, but they add to the upfront cost of building.
4. Australia's housing shortage
Australia is behind on its target of 1.2 million new homes by 2029. Official forecasts now suggest it won't be reached until December 2030. With so much demand for new housing and not enough capacity to build it, there's little pressure on construction prices to fall, even while property values soften.
What drives the cost of a custom home in Melbourne's inner suburbs
For a custom or architect-designed home, the market forces above are only part of the picture. Inner-suburb sites in areas like Hawthorn, Kew, Camberwell, Richmond and Bayside bring their own cost factors:
Site access. Narrow streets, shared boundaries and tight blocks make it harder to get materials and machinery on site.
Heritage overlays. Many inner-suburb homes sit in heritage areas, which shape what you can build and often require specialist detailing.
Soil and structure. Reactive clay soils, common across Melbourne, can require more substantial footings.
Design complexity. Large spans of glazing, steel structures, custom joinery and premium finishes all add to the cost per square metre.
Working with existing homes. Renovations and extensions involve the unknowns of an older building, from hidden structural issues to outdated wiring and plumbing.
This is why online "cost per square metre" figures can be misleading for premium projects. Two homes of the same size can differ in cost by hundreds of thousands of dollars depending on the site, design and finishes. The only reliable number is one based on your actual plans and site.
How to plan around rising building costs in Melbourne
Rising costs don't have to derail your plans. Here's how we help clients plan a new home, renovation or extension in Melbourne with confidence:
Involve your builder early. Bringing an experienced builder in during design means you get cost advice before the plans are finalised, not after. It's much easier to adjust a design on paper than to cut costs at tender.
Set a realistic budget from the start. Base your budget on current costs for projects like yours, not on figures from a few years ago or generic online calculators.
Include a contingency. Especially for renovations and complex sites, set aside a contingency for the unexpected. It protects your plans and your peace of mind.
Make decisions early. Selecting finishes, fixtures and appliances before construction starts helps lock in pricing and avoids costly delays and variations later.
Choose an established, financially stable builder. With construction insolvencies still high across Australia, your builder's track record, trade relationships and financial strength matter as much as their price. The cheapest quote can become the most expensive one if a builder can't finish the job.
Think long term. A well-built, energy-efficient home costs less to run and maintain for decades. Quality is an investment, not just an expense.
Frequently asked questions
Will building costs in Melbourne go down in 2027?
It's unlikely that construction costs will fall significantly in the near term. Trade shortages, higher compliance standards and strong demand for housing are expected to keep costs elevated, even if the pace of increases slows.
Why are building costs rising when house prices are falling?
House prices reflect what buyers are willing to pay for existing homes. Building costs reflect the price of labour, materials and compliance, which are driven by different factors. That's why the two can move in opposite directions.
Is it better to renovate or build new in Melbourne?
It depends on your site, your existing home and your goals. A renovation or extension can make sense if your home has good bones and you love where you live. A new build may be better value if major structural work is needed. An experienced builder can help you compare both options.
How can I keep my building costs under control?
Get cost advice early in the design process, set a realistic budget with a contingency, make your selections before construction starts, and choose an established builder with a strong track record.
Planning a build in Melbourne? Let's talk
Blueline Construction has been building custom homes, renovations and extensions across Melbourne's inner suburbs for over 20 years. We know how to plan around rising costs, complex sites and heritage requirements, and we're upfront about what your project will really take.
If you're thinking about building or renovating, get in touch with our team for an honest conversation about your plans and budget.
This article is general information only. Costs for your project will depend on your site, design, and selections.
