By Tom Johnston, Founder & Strategic Investment Advisor
Cotality data shows owner-occupier suburbs delivered 99% unit growth vs 65% in investor-heavy areas from 2010–2026. Why buyer depth, scarcity and resale demand matter more than rental yield.
A suburb attracting large numbers of property investors can appear to be an obvious place to invest. Strong rental demand, new development and high transaction volumes can all create the impression of a market with momentum. Yet over the long term, suburbs dominated by owner-occupiers have often delivered stronger capital growth than areas where investors comprise a large share of the market.
Cotality analysis of approximately 3,000 Australian suburbs reinforces that pattern. Between January 2010 and March 2026, unit values in owner-occupier-dominated suburbs increased by 99%, compared with 65% in investor-heavy suburbs within the same cities. For houses, the corresponding increases were 136% and 117%. Applied to the national median values at the beginning of the study, Cotality estimated the difference in gross capital gains at approximately $148,000 for units and $83,000 for houses.
The result does not mean that every owner-occupier suburb will outperform, or that investor-heavy locations should automatically be avoided. It does, however, highlight a factor that is sometimes overlooked in property selection: the future performance of an investment depends not only on who will rent it, but also on who will eventually compete to buy it.
Rental demand supports income. It does not, by itself, determine the price another buyer will pay for a property. Capital growth ultimately depends on the depth and purchasing power of the future buyer market. A property with appeal to first-home buyers, families, professionals, downsizers and investors can attract competition from several buyer groups. A property designed primarily for investors may have a much narrower resale market.
This matters because property prices are often set at the margin. A suburb does not need every resident to be willing to pay more. It needs enough motivated and financially capable purchasers competing for the limited number of suitable homes available at a particular time.
Owner-occupiers can be particularly influential in this process because they assess a home partly through its personal utility. The value of living near a preferred school, having a usable backyard, walking to cafés or securing a quiet street is experienced every day. A purchaser intending to live in the property may therefore justify paying more for those attributes than an investor assessing the purchase primarily through its rental return. This is sometimes described as an owner-occupier amenity premium.
Consider two properties producing similar rental income. The first is a well-located character cottage in an established inner-Brisbane suburb, appealing to families, professional couples and investors. The second is a two-bedroom apartment in a high-density precinct where most buyers are investors comparing similar stock on yield, strata costs and price.
When the first property is sold, several types of purchaser may compete for it. Some may intend to live in it, some may renovate it and others may hold it as an investment. The second property may be attractive, but its future buyers are more likely to assess it against a financial threshold. If its yield becomes less competitive, lending conditions tighten or tax settings change, much of that buyer demand can weaken at the same time.
This does not make investors irrational. It means their purchasing decisions are often governed by similar inputs. A market dependent on one type of buyer is generally less robust than a market with demand from several buyer groups.
Owner-occupier concentration should not be viewed in isolation. Part of the historical performance difference likely reflects the kinds of properties found in owner-occupier and investor-heavy locations, and how easily each can be replicated.
Many investor-dominated unit markets are located in precincts where additional supply can be delivered relatively quickly. A single apartment project can introduce hundreds of closely comparable properties. Multiple projects can create years of competing stock. When owners sell, purchasers may be able to choose between established apartments in the same building, similar apartments in neighbouring developments, developer stock, off-the-plan projects and recently completed properties offered with incentives. That level of substitutability makes it harder for any individual property to command a scarcity premium.
By contrast, established owner-occupier suburbs often contain housing that cannot be replicated easily. The land is already subdivided, development controls restrict additional density, and only a small number of suitable properties are offered for sale each year. Owner-occupiers also tend to reinvest in their homes over time — renovating kitchens, improving landscaping, maintaining façades — which can gradually lift the quality and appeal of the surrounding streetscape. The effect can become self-reinforcing: better-maintained homes attract more owner-occupiers, and stronger owner-occupier demand gives residents greater confidence to invest further.
Cotality identified this exposure to sudden supply increases as one explanation for the particularly large performance difference in the unit market. The important distinction is therefore not simply between houses and apartments. It is between assets with genuine scarcity and assets whose supply can expand in response to investor demand.
Investors are more likely than owner-occupiers to compare property against alternative investments and reassess their position when financial conditions change. Their purchasing capacity and willingness to hold can be affected by interest rates, rental yields, borrowing restrictions, land tax, negative gearing rules, capital gains tax settings and expectations for future price growth.
An owner-occupier is also affected by interest rates and borrowing capacity, but the decision to buy or retain a home is not determined solely by its investment return. In investor-heavy markets, a change to credit or tax settings can therefore affect a significant proportion of potential buyers simultaneously. If the same conditions also encourage some existing investors to sell, the market may experience weaker demand at the same time that listings increase. This sensitivity is particularly important where the properties have limited appeal outside the investor market.
The Cotality findings are useful, but they should not be reduced to a rule that a higher owner-occupier percentage automatically produces better growth. Owner-occupier concentration may simply be capturing several other characteristics associated with long-term performance: limited new housing supply, desirable schools and lifestyle amenities, employment accessibility, established streets and neighbourhoods, larger or more functional dwellings, greater land content, lower property turnover and stronger appeal across multiple buyer groups.
There are also owner-occupier-dominated markets where supply is highly elastic. New housing estates, for example, may attract large numbers of owner-occupiers while continuing to release competing land and housing for many years. Likewise, an investor-heavy suburb is not necessarily a poor investment. A tightly held boutique apartment, terrace or character property may have genuine scarcity even when the surrounding suburb has a high proportion of renters. The suburb statistic should prompt further investigation rather than determine the decision.
A strong owner-occupier suburb can still contain poor investment assets. An oversized apartment complex, compromised position, unusual floor plan or property with excessive holding costs may underperform despite being surrounded by desirable housing.
Conversely, a well-selected property within a mixed or investor-heavy suburb may perform strongly where it has a scarce architectural or land component, broad owner-occupier appeal, limited direct competition, a functional floor plan, access to valued amenities and a realistic future resale market.
The objective is not merely to calculate how many people in the suburb own their home. It is to determine whether the property being purchased will appeal to a deep and competitive pool of buyers when it is eventually sold. This principle is central to how we assess every property — you can read more about our methodology on our approach page.
When assessing owner-occupier appeal, investors should consider questions such as:
The lesson from Cotality''s research is not that investors should purchase only in suburbs with a particular ownership ratio. It is that tenant demand and buyer demand perform different functions. Tenant demand supports the income required to hold an asset. Broad owner-occupier demand can strengthen the competition required to increase its value.
The strongest investment properties often serve both markets: they are financially viable for an investor today, but desirable enough that future buyers will compete to call them home. For long-term investors, that is a more durable proposition than simply following other investors into the same market.
Source: Cotality analysis of Australian suburb-level ownership composition and capital growth, January 2010 – March 2026.
Contact: info@firmfoundationsproperty.com.au