You do not need gas connected to your home for energy costs to reach your building or renovation quote. Gas is used to make bricks, glass and cement. If a manufacturer pays more and passes that cost on, the builder may pay more too.
There is also an indirect link through inflation and interest rates. But the current evidence is more useful than a scare headline: east-coast long-term gas contract prices were broadly stable in the latest ACCC report, while the RBA says wider energy and cost pressures have kept inflation higher for longer.
What changed in late 2026?
The ACCC's September 2026 Gas Inquiry report found average prices under long-term east-coast contracts for 2027 and 2028 supply remained around $12 to $13 per gigajoule during the first half of 2026. It also forecast enough wholesale supply for the first quarter of 2027.
The pressure has not vanished. The ACCC expects southern states to rely more on Queensland gas and storage through winter 2027 as local production falls short of demand.
On 3 November, the RBA raised the cash rate to 4.85%. Its November outlook said higher global energy prices and a broad range of other costs were keeping inflation high for longer. That does not mean gas alone set the rate decision. It shows why energy costs still belong in the housing and home-loan discussion.
How gas can reach a building quote
A factory's energy bill is part of the cost of making its products.
If gas gets dearer, a brickworks may pay more to fire its kilns. If it passes that cost on, the builder pays more for bricks. The owner may then pay more for the build or renovation.
The size and timing will vary. Contracts, competition and profit margins affect how much a business passes on. A change in gas prices will not add the same amount to every product or quote.
But an electric stove and rooftop solar do not change how the bricks or windows were made.
Why Australia can export gas and still face southern pressure
Most of Australia's gas is produced far from the southern markets that need it. Southern production is falling, pipelines from Queensland have limits, storage must be refilled and producers have export contracts.
That is why import terminals and more flexible storage have been discussed as ways to protect future supply. They may help keep gas available. They do not guarantee that it will be cheap. Supply reliability and price are different questions.
The link to inflation and home loans
Energy costs can reach beyond building sites. Higher business costs may flow into the prices of other goods and services.
If price rises spread and last, they add to inflation. The RBA also looks at jobs, spending, capacity in the economy and what it expects prices to do next. One gas bill does not decide the cash rate.
For owners with variable loans, rates staying high can mean repayments remain high. For buyers, higher loan costs can limit what they can borrow and spend.
Why a dearer build does not guarantee a dearer house
The cost of building a new home affects the choices buyers face. If new builds get dearer, some existing homes may look like better value.
But buyers still have budgets. A builder's higher quote does not give a buyer more income, a bigger deposit or a larger loan.
That is why a rise in building costs is not proof that your home has risen by the same amount. It can cost more to replace a home without buyers being able to pay that full cost.
What this means for the housing debate
Energy is one part of the bill. Land, labour, approvals and borrowing costs matter too.
Cheaper gas alone would not solve the housing shortage. But a plan for cheaper homes should explain how the materials will be made, what they will cost and how buyers will fund the finished home.
My view: housing targets need a plan for the building bill. Announcing more homes does not make the bricks cheaper or give buyers a larger loan.
Sources checked 6 November 2026
General property information only. It is not financial advice, a forecast of the next RBA decision or a valuation of any property.