Australia-Wide Investment Pulse: September 2026
Reading time 10 minutes
by Parker Hadley
- Cotality’s national Home Value Index fell 0.7% in July, the largest monthly fall since December 2022. Sydney and Melbourne led the decline, while Brisbane and Adelaide had also moved into negative territory.
- The slowdown is not uniform. Regional values eased 0.1% over the three months to July, compared with a 2.5% fall across the combined capitals.
- Fresh listings were 8.2% below the five-year average in late August, but total advertised stock was 1.7% above average. Investors have more choice, although the fresh end of the market remains thin.
- Rental conditions remain tight: Cotality recorded 5.9% annual rent growth, a 1.6% national vacancy rate and rental listings 16.7% below the five-year average.
- For Parker Hadley clients, September is about comparing starting points, not ranking one-month growth. A 1% fall after years of exceptional growth is not the same proposition as a 1% fall in a market that barely moved.
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The national picture in one table
|
Signal |
September read |
Why investors should care |
|---|---|---|
| National values | -0.7% in July; +5.3% annually | The downturn has broadened, but the annual result still contains the strength of the previous cycle. |
| Capital-city spread | Sydney -1.4%; Melbourne -1.2%; Brisbane -0.6%; Adelaide -0.2%; Perth +0.1% | The direction is softening, but the size and starting point of each market remain different. |
| Listings | New stock -8.2% versus average; total stock +1.7% | More property is available overall, while genuinely fresh campaigns remain below normal. |
| Selling conditions | 35 median days; 3.8% vendor discount | The broad market is giving buyers more time and negotiation room than earlier in the cycle. |
| Rents | +5.9% annually; $705 median weekly rent | Rental income is still growing, but affordability is becoming a constraint on how far rents can continue to rise. |
| Rental supply | 1.6% vacancy; listings 16.7% below the five-year average | Tight supply supports holding conditions, but city and dwelling-type selection remain essential. |
| Regional split | -0.1% values over quarter; 4.2% gross yield | Regions are outperforming the combined capitals, although almost every major regional market has slowed. |
All figures are from Cotality releases available at 31 August 2026. Different reference periods are retained rather than combined into a false single-month measure.
What changed in August
August made the national slowdown easier to see and harder to simplify.
Cotality’s July index recorded the largest national monthly decline since December 2022. Sydney fell 1.4% and Melbourne 1.2%, while Brisbane and Adelaide posted their second consecutive monthly declines after revisions. Perth rose 0.1%, but its June result was revised to a 0.5% fall.
That revision is a useful warning. Fast-moving markets can look cleaner in the first release than they do once more transactions settle into the index. Investors should not build a strategy around a tenth of a percentage point.
The more important direction is that affordability, restrictive finance and weaker confidence are affecting more markets. The more important difference is what those markets did before the slowdown arrived.
The same fall can land in a different year
Cotality’s August Housing Chart Pack modelled what declines of 5%, 10%, 15% and 20% from peak values would mean across the major capitals. The exercise was not a forecast. It was a reminder that the same percentage fall does not erase the same amount of history.
Sydney was already more than 5% below its peak, but a 20% decline would only return the city to roughly May 2021 values after the pandemic upswing. Melbourne had the smallest buffer, with a fall beyond 10% taking values back to pre-pandemic levels.
Perth sat at the other extreme. Even a 20% decline from peak would only return the market to around April 2025. Brisbane would return to around August 2024 and Adelaide to around April 2024.
The investment lesson is not that Perth is safer or Melbourne is automatically cheap. It is that drawdown percentages need context. A market that doubled and then fell 5% is at a very different point from one that was flat for years and then fell 5%. Entry price, yield, local demand and the future resale pool still decide whether the property makes sense.
Rates are still doing the heavy lifting
Cotality’s August rate analysis noted that the cash rate remained at 4.35% after three increases between February and May. For a borrower taking the average new owner-occupier mortgage used in the analysis, those increases added just over $350 a month to repayments. Cotality estimated median-income borrowing capacity had fallen 7%, or more than $53,000.
That is why a softer purchase price does not automatically create better affordability. The loan still has to be serviced, and the buffer still has to survive a vacancy, an insurance increase or a repair.
For investors, the cleaner approach is to run the deal at the finance cost available now, then add a harder scenario. A property that only works if rates fall, rent reaches the top appraisal and every expense behaves is not a buffer. It is a collection of hopes.
Rents are supportive, not unlimited
Cotality’s June-quarter Rental Review put national rents 1.6% higher over the quarter and 5.9% higher over the year, lifting the median dwelling rent to $705 per week. The national vacancy rate was 1.6%, and total rental listings were 16.7% below the five-year average.
Every capital had a vacancy rate below 2%. Adelaide was tightest at 1.0%, while Sydney and Brisbane were both at 1.9%. Sydney rental listings were 24.1% below the five-year average.
Those conditions support the holding case, but rent growth is already colliding with household affordability. Cotality estimated the typical household was allocating roughly one-third of gross income to rent in March, compared with about 27% five years earlier. Regional households can be spending more than 35%.
This is why we would not simply roll 5.9% annual growth into a base case. Tight vacancy helps leasing. It does not remove the ceiling created by local incomes, the difference between house and unit demand, or the risk of new competing stock.
Regional resilience is narrowing
Cotality’s latest Regional Market Update showed regional dwelling values easing 0.1% over the three months to July, compared with a 2.5% decline across the combined capitals. That is clear relative outperformance, but it is not broad strength. Forty-seven of the 50 largest regional markets slowed and 22 recorded falling values.
Regional Western Australia and South Australia led the country with 2.1% quarterly growth. Port Pirie rose 6.7%, Kalgoorlie-Boulder 6.4% and Geraldton 3.8%. Regional Queensland was flat as falls in the Gold Coast, Sunshine Coast and Cairns offset gains in Maryborough, Gladstone and Townsville.
Regional NSW and Victoria were weakest. Coffs Harbour, Goulburn and Nelson Bay led the NSW falls, while Geelong and Warragul-Drouin declined in Victoria. At the same time, inland centres including Dubbo, Tamworth and Albury-Wodonga continued to grow.
That is the September pattern in miniature: the broad label is becoming less useful. Regional Australia is not one investment market, just as Queensland is not one investment market.
Markets on our radar
The table below is a research direction, not a shopping list. City and regional data can tell us where to investigate. They cannot select the suburb, street or asset.
| Market | Latest Cotality read | What we like |
What we are careful of |
|---|---|---|---|
| Brisbane | -0.6% in July; total stock more than 16% above average by late August | Established, owner-occupier-grade homes where added choice improves the entry without weakening the tenant pool. | Assuming the previous boom continues, ignoring insurance and flood risk, or buying uniform fringe stock because the city still has a strong long-term story. |
| Adelaide | -0.2% in July; new listings about 4% above average | Practical family assets in established pockets where affordability and local demand remain understandable. | Thin resale pools, generic fringe supply and using a low vacancy rate as permission to overpay. |
| Melbourne | -1.2% in July; fresh listings more than 9% below average | Selective assets where subdued long-term growth and weaker sentiment create a better-quality entry. | Generic apartments, holding-cost drag and mistaking a smaller five-year buffer for an automatic bargain. |
| Perth | +0.1% in July after June revised to -0.5% | Scarce, practical homes with broad appeal where rent and entry price still work under conservative assumptions. | Chasing momentum, ignoring revisions and assuming a large five-year buffer makes every property resilient. |
| Regional WA and SA | +2.1% over the three months to July in both regions | Affordable centres with local economic activity, tight selling conditions and a definable tenant and buyer pool. | Buying a headline town without understanding employment concentration, resale depth or asset-specific risk. |
| Regional NSW and Victoria | Weakest regional conditions; selected inland centres still grew | Opportunities where a good local economy and asset have weakened more than their fundamentals. | Treating a large discount or long selling time as value before understanding why demand has stepped away. |
Monthly capital-city values and late-August listings come from Cotality. Regional figures cover the three months to July and are retained at their published reference period.
What we would actually do with this month
- Compare starting points before growth rates. Look at the five-year path, peak date and recent revisions before deciding what a monthly fall means.
- Use higher stock to improve the purchase. More choice should raise the asset standard and strengthen negotiation, not broaden the brief until anything fits.
- Keep rent assumptions boring. Use the achievable rent today and a vacancy allowance. Do not annualise the strongest recent quarter forever.
- Read regional markets individually. Employment, income, supply, insurance, tenant depth and resale liquidity matter more than the regional label.
- Keep the future buyer visible. A property should make sense beyond the next tenant and beyond the investor who loves the same spreadsheet.
Our guide to house versus unit versus townhouse investment property is useful when the market signal is clear but the right dwelling type is not.
Three rules for September
- A softer market can improve the entry. It cannot improve the asset.
- A tight rental market can support the hold. It cannot guarantee unlimited rent growth.
- Regional outperformance can identify a lane. It cannot replace local due diligence.
What we are not doing
- We are not calling Melbourne a buy simply because its five-year buffer is the smallest.
- We are not calling Perth safe simply because it could fall further and remain above its 2024 level.
- We are not treating 5.9% rent growth as the base case for a property that has not been leased.
- We are not treating every regional market as more resilient than every capital-city market.
- We are not mixing competing data providers to manufacture a more dramatic headline.
Our take
The market is getting more useful for investors because lazy comparisons are becoming easier to spot.
Sydney has fallen more, Perth has a bigger buffer, Adelaide has tighter vacancy, regional values are outperforming capitals. All of those statements can be true and still tell you almost nothing about whether the property in front of you deserves to be bought.
September is about using softer conditions to buy a better asset, not using them to explain away a weaker one. Know where the market started. Keep the rent conservative. Describe the future buyer in one sentence. Then make sure the property still works if the next data release is less flattering than the last.
If you are looking beyond Sydney, see how our Australia-wide investment process works from strategy and market selection through to local inspection, due diligence and negotiation.
For a longer view beyond one month of data, The Long View explains what Australian property returns say across full cycles.
Thinking about investing?
See how we help investors shape the strategy, choose the right market and buy well Australia-wide.
