Location diversification in a market moving in two directions

You can reduce most of that risk over time, and the first step is understanding how it builds up.

Capital and regional markets moved apart

Cotality's September index shows Darwin up 11.9% over the year and Melbourne down 6.2%, alongside the Perth and Sydney results above, while regional markets outperformed the capitals. Each market responds to its own economy, population flows, rental demand and new supply, and over the past year those drivers pulled in different directions.

The ABS reports that population growth over the year to March 2026 was concentrated in Queensland and Western Australia. In September, advertised stock across the capital cities was 23.1% higher than a year earlier. The September 2026 market update sets out those pressures in detail.

Over the three months to September, 97% of capital city suburbs recorded a fall, including suburbs in the cities still up over the year. A rate rise reaches almost every market at once. Spreading across locations reduces the risks that are local, such as supply, employment and population, and leaves the national ones, such as interest rates, in place.

Lessons from single-industry towns

The clearest lessons come from towns that depend on one employer or one industry. During the resources investment boom, mining towns in Queensland's Bowen Basin recorded high rents while construction workforces were in place. When the construction phase ended, demand fell away quickly. Research by CBRE published in 2015 recorded some sales in Moranbah at prices 70.6% below their level three years earlier. Investors who had bought several properties in one such town had nothing elsewhere to offset the loss.

Few markets carry risk on that scale. The same test applies to any location that relies on a single driver, such as one large employer, one university, one major project or a narrow tenant base.

Why investors concentrate in one place

Two habits account for most concentration. The first is familiarity. Buying in a suburb you know feels safer, particularly for a first investment, because it seems easier to judge what drives prices there. Living in a suburb tells you a great deal about its streets and schools. It tells you much less about its supply pipeline, vacancy rate and the depth of buyers at resale.

The second is loyalty to a past result. An investor whose first purchase grew strongly often keeps buying in the same area, even when other locations show stronger fundamentals. Both habits feel prudent at the time, and each purchase made this way adds to the same set of local risks. Buying with emotion looks at how these decisions are made.

How a portfolio is spread across locations

Location diversification comes from choosing each purchase on the evidence for growth, rental demand and resale depth at the time it is made. In practice the next purchase is usually somewhere other than the last. Each property still has to pass the same tests of supply, demand and the investor's capacity to hold it. Strong growth in a market over recent years says little on its own about the years ahead.

Over ten years, a portfolio built this way holds properties bought at different points in different local cycles. That spreads both the timing risk and the location risk, and makes it less likely that one local setback affects every property. Owning in more than one state also changes your land tax, since each state levies its own. Properties at a distance rely more heavily on a capable local property manager.

Matching property type to your plan

The same thinking applies to the type of property held. Early in a plan, with time and income growth ahead, many investors favour properties with stronger long-term growth potential, provided the rent and their income can comfortably carry the loan. Closer to retirement the balance usually shifts toward cash flow and lower debt.

The tax rules now bear on that choice as well. New rules apply from the 1st of July 2027 to established residential property bought after 7.30pm AEST on the 12th of May 2026. Net rental losses on that property can no longer reduce the tax paid on salary or other income. Eligible new builds that add to housing supply are exempt. An accountant can model how this affects a proposed purchase. For the wider trade-offs, see house or unit and new or established.

What a sound recommendation sets out

Concentration is one of the clearest signs to look for in a recommendation. A recommendation to buy only new units from one developer in one location deserves close scrutiny. Accredited Advisors across our network review investors' existing portfolios around Australia every week, and many of the problems they find began with a sales-led recommendation of this kind. The properties were bought at a premium, in locations chosen because stock was available rather than because demand was strong.

A sound recommendation explains why this location, why this property type and why now, with evidence the investor can check. It also explains how the purchase fits alongside the properties already held. The article on new-build pitfalls lists further warning signs.

Reviewing your own portfolio

List every property you hold with its location, type, current value, loan balance and rent. Then work through three questions.

1. What share of your total property value sits in one city or region?
2. Do your properties depend on the same local drivers, such as one industry or one large employer?
3. If values and rents in the market that holds most of your equity fell over the next year, could you keep every property without strain?

Where the answers point to concentration, the next purchase is usually the main opportunity to rebalance. Selling an existing property to fund a purchase elsewhere adds selling costs and capital gains tax, and the replacement then attracts stamp duty. Waiting until a purchase can be made on the right evidence is a reasonable choice.

Diversification is built over several purchases, so the way each decision is made matters more than any single result. Before your next purchase, an Accredited Advisor can test each location and property type against your income, borrowing capacity, the properties you already hold and the timeframe you are working to. Your advisor works alongside the licensed professionals your situation requires, so that lending, ownership structure and tax are each confirmed by the right person. Whether and when to rebalance remains your decision, made on evidence you have been able to test.

General information only, current at the 29th of October 2026. This article does not take into account any individual's objectives, financial situation or needs and does not constitute financial, credit, taxation or legal advice. ASPIRE Property Advisor Network supports independent accredited property advisors and does not provide taxation or financial product advice. Past performance is not a reliable indicator of future performance. Borrowing capacity should be confirmed with a licensed mortgage broker and taxation positions with a registered tax agent.