A new home costs about 53 per cent more to build than it did before the pandemic. That is the figure to hold onto, because the latest producer price release adds another layer on top of it.
The quarterly data, released on 30 October 2026, shows house construction input costs rose 3.9 per cent over the year to September. That is the fastest annual pace in three years. In plain English, the materials and components that go into a house are getting dearer again after a period when the pressure looked like it was fading.
This matters for building costs, but it matters more for what comes after: whether anyone can afford to start a project at all.
Which inputs are doing the damage
The increases are uneven, and the unevenness is the story.
- Electrical equipment: up 14.5 per cent
- Plumbing products: up 9.4 per cent
- Non-steel metal products: up 5.0 per cent
- Ceramics: up 4.1 per cent
None of these are exotic items. Every house needs wiring, pipes and tiles. A builder cannot substitute around a 14.5 per cent jump in electrical gear the way a household might swap a brand of cereal. Fixed-price contracts signed months ago absorb that squeeze, and the builder carries it.
Industry economists also point to demand sources that compete with housing for the same trades and materials. Public work such as hospitals and schools, and private data centre construction, are all bidding for labour that remains short.
A 53 per cent problem
The 3.9 per cent annual figure sounds modest in isolation. Stacked on the post-pandemic run, it is not.
The cumulative picture is that new homes are about 53 per cent dearer to build, roads and bridges about 33 per cent dearer, and non-residential buildings close to 40 per cent dearer. Housing is competing with every other construction category, and housing is the one where the end buyer is most rate-sensitive.
A fuel surcharge linked to the conflict in the Middle East has eased somewhat this quarter. It has not disappeared for most builders. So even the one relief valve is only partly open.
How cost inflation meets weak demand
Here is the catch. Rising costs alone would be manageable if buyers were queuing up. They are not.
New home sales have been soft, and investor lending for new builds has not provided the lift that policymakers hoped for. When a builder faces higher input prices and fewer signed contracts, the sensible response is to delay starting speculative projects or to price in a bigger buffer. Both reduce the supply that was supposed to ease the housing shortage.
Higher interest rates compound this at every stage:
- Developers pay more to fund land and construction
- Buyers can borrow less against the same income
- Investors, who are a large share of new apartment demand, face thinner yields against higher repayments
Our housing supply, approvals and building costs guide walks through why approvals and starts can diverge, and this is the kind of environment where they do.
Key numbers
- 3.9%: annual rise in house construction input costs to September
- 14.5%: electrical equipment increase
- 53%: estimated rise in new home build costs since the pandemic
- 5 to 7%: rough share of a typical home’s cost taken by windows and doors
The window and door dispute
There is a live policy fight sitting on top of the cost data. The building industry body is opposing proposed duties on Chinese aluminium windows and doors. One supplier estimates a $500,000 build could cost up to $26,500 more if the duties go ahead.
Treat that figure with care. It is a single supplier’s estimate, not an independent calculation, and it assumes the duty flows through in full. Windows and doors reportedly make up roughly 5 to 7 per cent of a typical three or four-bedroom home’s cost, which gives a sense of the exposure. The trade-off is real, though: duties that protect domestic manufacturers push up the price of every new home that uses imported product.
The industry’s chief executive has also called for a broader policy reset, naming trust taxation changes, investment taxes and a proposed credit card ban as factors sapping confidence, and urging suppliers to drop fuel surcharges. Whatever readers think of that list, it signals that builders see sentiment, not just cost, as the constraint.
What it means for different readers
If you are buying off the plan or building: expect quotes to carry bigger contingencies, and read variation clauses closely. Ask what happens if input costs move between contract and completion.
If you are an investor in new stock: model a build cost that keeps rising and a rent that may not keep pace. The yield maths gets tighter when both the purchase price and the funding cost are higher.
If you are watching the supply debate: a cost spike plus soft sales is a combination that tends to delay starts. A rule of thumb: when margins compress and presales slow together, projects slip first, and cancellations follow if rates stay high.
Some lenders outside the major banks are also increasingly active in funding this space, as our piece on non-bank lenders and the broker channel explains.
What we can and cannot say
This is one quarter of data, and producer prices are not the same as what a builder charges a customer. Margins, contract timing and regional labour markets all sit in between. What the figure does show is direction: the pressure is building again, not easing.
The practical read is that cost relief is not coming soon enough to rescue a supply pipeline already hit by weak sales. If you are making a decision that depends on new housing arriving on schedule, build in delay as the base case.
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General info, not financial advice.
