Is Now a Good Time to Buy Property in Australia? — Wrong Question

Right now, in April 2026, some Australian suburbs are recording 15%+ annual growth. Others in the same city are flat. A few are declining. This isn’t unusual — it’s how property has always worked. The “Australian property market” is a media fiction. What actually exists is 15,000+ individual suburb markets, each at a different stage of its own cycle.

When someone asks “should I buy now?” the honest answer is: it depends entirely on where. The timing question and the location question are inseparable. A suburb in the early stages of a boom is a fundamentally different proposition from a suburb that’s already peaked — even if they’re in the same postcode range.

We score 393 suburbs fortnightly using a detection formula backtested across 12,360 postcode-months. At any given scoring date, the distribution looks something like this: a handful rated Strong Signal, a larger group at Good Signal, a broad middle on Fair Signal, and a cluster at Weak Signal. The answer to “should I buy?” is different for every suburb on that list.

How much does suburb selection actually matter? We backtested our formula across 12,360 postcode-months to find out. The results are stark.

Walk-forward backtest, 12,360 postcode-months, 2012–2026. No lookahead. Excess return = suburb 12-month growth minus market median growth. Full methodology →

The spread between Strong Signal and Weak Signal is 13.9 percentage points. That’s not a rounding error — it’s the difference between a great investment and a poor one. And it’s entirely driven by which suburb you pick, not when you buy.

The formula achieves 85.7% accuracy at detecting booms in progress, with zero false positives on a 78-suburb validation set. When it says a suburb is booming, it is. The question is whether you’re looking at the right suburbs.

There’s another reason the blanket “should I buy now?” question fails. We discovered that boom magnitude is era-dependent. When we split our backtest data by time period, a dramatic pattern emerged.

This isn’t just a statistical curiosity. It means the stakes of suburb selection in 2026 are higher than they were a decade ago. The gap between a booming suburb and a flat one is wider. The opportunity cost of buying in the wrong place is steeper. And the reward for finding the right suburb — early in its cycle — is larger.

After testing five versions of the formula and discarding everything that didn’t survive backtesting, two signals remained. They’re simple, they’re public, and they work.

That’s it. Affordability plus timing. The boom cycle stages determine when to act, and the price gap determines where to look. Everything else we tested — population growth, infrastructure spending, momentum, acceleration — failed backtesting.

Here’s the honest answer: it depends on whether you can find a suburb that meets both criteria — affordable relative to its city, and early in a detected boom. If you can, the data says yes. If you can’t, waiting is rational.

The mistake most buyers make isn’t buying at the wrong time. It’s buying in the wrong suburb at any time. A Weak Signal suburb bought at the “perfect” moment still underperforms a Strong Signal suburb bought six months “late.” The data is unambiguous: suburb selection dominates market timing by a factor of nearly 14 percentage points.

You can check both signals yourself. Domain publishes quarterly capital city medians. CoreLogic and Your Investment Property publish suburb-level growth and days on market. It’s all public data. The hard part is doing it systematically across hundreds of suburbs, catching booms within weeks of starting, and filtering noise from thin markets.