How Interest Rates and Property Prices Connect

A smaller fall in house prices can sound like a recovery. But prices can keep falling even as the decline slows. Understanding interest rates and property prices means separating the direction of the market from the speed at which it is moving.

Inflation, mortgage repayments and housing supply help explain that picture. So do differences between houses and units, price brackets and locations. A national headline captures only part of it.

How are interest rates and property prices connected?

Higher interest rates put pressure on borrowers’ capacity to service a mortgage, which can place downward pressure on property prices. Borrowing costs affect how much buyers can afford to pay.

The repayment pressure matters because a buyer’s capacity to pay is part of what supports prices. Higher repayments can squeeze that capacity.

However, a broad statement about the property market does not describe every buyer or every property. Conditions can differ between cities, suburbs and price brackets.

In AMP macroeconomist My Bui’s view, higher interest rates and bond yields call for greater selectivity. That challenges the assumption that buying any property will produce the same pattern of growth.

Why does inflation matter for interest rates and property prices?

Underlying inflation helps explain the pressure on interest rates and property prices. Trimmed mean inflation gives a steadier indication of underlying price pressures than the headline number.

Headline inflation can move with fuel prices or changes to electricity rebates. These changes affect household bills and can make the headline figure more volatile.

In the source interview, Bui cites annual trimmed mean inflation of 3.6%, compared with roughly 3% earlier in the year. She identifies the annual figure as covering the 12 months ending in July. These are figures she discussed at the time, rather than a current inflation update. Since then, the Reserve Bank lifted the cash rate to 4.60% on 29 September, with trimmed mean inflation still at 3.6%. We cover what that means for buyers in is it a good time to buy investment property in 2026.

Wage growth and productivity also matter. More money entering the economy without a corresponding increase in output can add pressure to prices. The relationship between wages, output and inflation is therefore part of the interest-rate discussion.

Does slower house price decline mean the market has bottomed?

No. A slower decline means prices are falling less quickly. A market bottom is a different point: prices have stopped falling.

Bui illustrates the distinction with Sydney. In the recording, she describes a 1.4% monthly price fall in July, followed by a smaller decline of around 1.1% or 1.2%. The second fall was smaller, but it was still a fall.

The example shows why the wording around a housing chart matters. A headline about an easing downturn can describe a change in pace without establishing that a recovery has begun.

There is a geographical distinction too. Different cities and suburbs move through their own cycles. A national turning point does not mean every local market reaches the same stage at once.

Why can units and houses perform differently?

Affordability, earlier price growth and support for different buyer groups can affect market segments differently.

Bui’s historical comparison illustrates this: lower-priced units were more resilient than houses in the period she describes. Houses had risen more during the previous upswing, while affordability, employment and first-home-buyer support were helping to sustain demand at the lower end.

That comparison highlights the limits of an average. A national house-price figure can sit alongside different experiences for units, houses and properties at different price points.

The same distinction applies to buyer incentives. Deposit assistance and stamp duty concessions can support first-home-buyer demand. Their immediate benefit to eligible buyers is a separate question from their longer-term effect on demand and prices.

Increasing buyers’ capacity to pay can push prices higher when the number of homes remains constrained. This is a discussion of the economic mechanism, rather than current scheme eligibility or a recommendation to use an incentive.

Why does housing supply matter alongside interest rates?

Housing conditions also depend on the capacity to build enough homes. Material costs, labour costs and construction productivity all affect that capacity.

Competition for resources is another factor. Public infrastructure projects can draw on workers and materials that residential builders also need. Tradespeople may also move between markets to follow available work.

That makes the supply discussion broader than the number of buyers seeking a home. It also includes the workers and resources available to deliver new housing.

Migration illustrates both sides of that relationship. The mix of people arriving matters alongside the total, including whether construction workers can contribute to building more homes. Recognition of overseas qualifications is another part of this supply question.

These supply pressures help explain why the housing debate extends beyond an individual RBA decision. For more on why constrained supply matters to long-term growth, see why constrained supply and liveability drive long-term property price growth.

How can property investors put market headlines in context?

Reading multiple sources and considering longer-term charts can help place a headline in context. Three distinctions are useful when interpreting the numbers:

• Underlying inflation and headline inflation measure different aspects of price pressure.
• Slower house price declines do not establish that prices have bottomed.
• National averages can mask differences between locations and property types.

Different sources bring different perspectives. Understanding what a number measures, and the period it covers, helps put negative news in context.

If you’d like to see how today’s rates and prices apply to your own plan, book a Property Investment Roadmap Session with Search Party Property.

Frequently asked questions

Do higher interest rates put downward pressure on property prices?

They can. Higher rates squeeze mortgage-servicing capacity, reducing the amount buyers can afford to pay. The effect can differ between market segments.

What is trimmed mean inflation?

It is a more stable measure of underlying inflation pressures. Headline inflation can move with fuel prices and electricity rebates.

Can house prices still fall when a downturn is slowing?

Yes. A smaller monthly decline still means prices have fallen. An easing rate of decline is different from an actual bottom.

Why might units hold up better than houses?

Affordability, employment and first-home-buyer support can sustain demand at lower price points. Earlier price growth also matters when comparing houses and units.

Why does housing supply feature in the interest-rate debate?

Insufficient home building, construction costs and competition for labour and materials affect housing supply. Those factors sit alongside the effect of borrowing costs.

Source and contributor

This educational article draws on My Bui’s discussion with Julian Khursigara, founder of Search Party Property, on the Invest Smarter, Grow Faster podcast. Bui introduces herself as a macroeconomist at AMP, and she and the Econosights team share economic commentary on Instagram, TikTok and LinkedIn. The market examples describe the recording period, not an updated forecast.

Watch the full My Bui conversation on YouTube

Disclaimer: This article is general information only and does not constitute financial, tax, legal or investment advice. It does not take into account your objectives, financial situation or needs. Guest views are their own. Past performance is not an indicator of future performance. Seek advice from a qualified professional before making financial decisions.