What Makes a Good Investment Property?

Not all investment properties are created equal. Two properties at the same price point in the same city can produce vastly different outcomes over 10 years — one generating strong capital growth and reliable rental income, the other sitting flat while its owner absorbs ongoing losses with nothing to show for it.

The difference usually comes down to a handful of fundamentals that experienced investors check before they buy. Understanding these criteria won't guarantee a perfect investment, but they significantly shift the odds in your favour.

1. Location: The Factor That Matters Most

You've heard "location, location, location" enough times that it risks feeling like a cliché. But it's repeated because it's true — and because investors often underweight it when chasing yield or being swayed by a new development's finish.

When assessing location for an investment property, look at:

• Proximity to employment hubs: Properties within reasonable commuting distance of major employment centres attract a larger pool of potential tenants. In Melbourne, this means within 20–25km of the CBD, or close to secondary employment hubs like Monash Medical Centre, Dandenong, or Sunshine/Footscray.
• Public transport access: A property within 500m of a train station or major tram route commands significantly higher tenant demand than one requiring a car for every trip. This is the single factor most often cited by tenants as a deciding criterion.
• Schools: Proximity to well-regarded primary and secondary schools drives demand from families — typically stable, longer-term tenants who are less likely to vacate frequently.
• Retail and lifestyle amenity: Walkable access to cafés, supermarkets, parks, and services makes a property attractive to the growing cohort of renters — particularly young professionals — who prioritise lifestyle over space.
• Low vacancy rate suburbs: Check SQM Research or comparable rental market data. A suburb with a vacancy rate below 2% is a healthy landlord's market. Above 3–4%, you may struggle to find and retain tenants consistently.

2. Supply and Demand Dynamics

Even an excellent location can be undermined if there's too much competing supply. This is most relevant for apartments, where concentrated new development can suppress both rents and capital growth for years after the initial building boom.

Melbourne's CBD apartment market and parts of Docklands and Southbank experienced this in the mid-2010s: thousands of new units entering the market over a short period suppressed rental growth and left many investors with flat or declining values for half a decade.

When assessing a suburb or precinct:

• Check the development pipeline — how many new dwellings are under construction or approved in the area? Council planning portals and services like Cordell Connect provide this data.
• Look at historical vacancy trends, not just current vacancy. A currently tight market in a precinct with 2,000 apartments under construction may loosen significantly within 18–24 months.
• For houses and townhouses, supply is naturally more constrained in established suburbs — land can't be manufactured from nothing. This is one reason house markets in inner suburbs tend to be less oversupply-prone than apartment markets.

3. Yield vs Capital Growth: The Core Trade-Off

Every investment property sits somewhere on a spectrum between high yield and high capital growth. Understanding this trade-off is essential before you choose.

High Yield Properties

Regional properties and outer suburban locations often offer gross rental yields of 5–7% or more. The appeal is obvious: more cash coming in relative to the purchase price. But high yield often correlates with lower capital growth — regional towns can stagnate for years if the economic base is thin or population growth is weak.

High-yield strategies suit investors who need income from their portfolio now (for example, approaching retirement), investors with limited capacity to absorb negative cash flow, or investors diversifying across a large portfolio where some properties are explicitly income-focused.

Low Yield, High Growth Properties

Inner-city Melbourne houses and quality townhouses typically yield 2.5–3.5% gross. After expenses, you're significantly negatively geared. But historically, the capital growth in established inner and middle-ring suburbs has more than compensated — with many suburbs doubling in value over 10-year periods.

These properties are best for investors with strong income, a long time horizon, and the cash flow capacity to service the property through market cycles. The tax benefits of negative gearing (particularly at higher marginal rates) partially offset the cash shortfall.

A useful benchmark: if you're buying purely for yield and the location has weak capital growth fundamentals, make sure the yield is genuinely strong enough to generate a positive net return after all expenses — not just gross rent relative to purchase price.

4. Infrastructure Pipeline: Buy Ahead of the Curve

Government infrastructure investment is one of the most reliable predictors of medium-term property growth. When a new train line, hospital, university campus, or major road upgrade is announced, the surrounding property market typically reprices over the following 3–7 years as the area's accessibility and amenity improves.

Melbourne examples have included the Westgate Tunnel's impact on Altona and Yarraville, the Metro Tunnel's effect on stations like Arden (North Melbourne) and Anzac (South Yarra), and ongoing investment in the Sunshine Health and Education Precinct positioning Sunshine as a major growth node.

To track upcoming infrastructure spend, monitor:

• Infrastructure Victoria's 30-year strategy and project pipeline
• State and federal budget announcements for transport and health capital
• Local council strategic plans and structure plans for major precincts

The key is to buy before the project is fully priced in. Once a new station has opened and the suburb is firmly established, much of the growth has already occurred.

5. Demographic Signals: Who Lives There and Who's Moving In

The best investment properties are in suburbs where tenant demand is growing — not just stable. Demographic data from the ABS census (updated every 5 years) can reveal powerful signals:

• Population growth: Suburbs experiencing consistent population growth have inherently stronger rental demand. Look for suburbs where the 2016–2021 census showed population gains of 5%+ and where current development and migration trends suggest the trend is continuing.
• Younger demographic profile: Suburbs with a high proportion of 20–35-year-olds tend to have strong, sustained rental demand — this cohort is less likely to own and more likely to value the lifestyle characteristics that drive rents. Melbourne's inner north and inner west skew younger and have sustained rental tightness for this reason.
• Employment diversity: Single-industry towns are high-risk. A mining town with 3% vacancy today can have 10% vacancy in two years if commodity prices turn. Suburbs with diverse employment across multiple sectors are more resilient.
• Income growth: Rising median household incomes in a suburb signal that renters have increasing capacity to pay rent — supporting rental growth over time.

6. The Body Corporate Trap in Apartments

Apartments can be attractive entry points for investors due to lower purchase prices, but body corporate (owners corporation) fees can significantly erode yield — and the problem compounds in newer, amenity-heavy buildings.

A $500,000 apartment with $8,000 per year in strata levies requires approximately $154 per week just to cover that single cost. Add council rates, insurance, management fees, and loan interest, and you may find the effective yield is far lower than the raw rent-to-purchase-price ratio suggests.

Before purchasing an apartment, always obtain the owners corporation certificate and financial statements. Look at:

• Annual levies (admin fund + capital works/sinking fund)
• The capital works fund balance — a depleted fund signals upcoming special levies
• Any outstanding litigation or building defects (particularly in buildings less than 10 years old)
• The number of investor-owned vs owner-occupied units — a building that is 80% investor-owned can be harder to rent and harder to maintain standards in

7. Think Like a Renter, Not a Buyer

One of the most common mistakes first-time investors make is buying a property they would personally want to live in, rather than what their target tenant wants to rent. These are often different things.

Owner-occupiers value things like a large kitchen, a double garage, a backyard for entertaining, proximity to a good primary school. Renters — particularly the young professionals who dominate Melbourne's rental market — often prioritise different attributes:

• Walking distance to a train station or tram stop
• Walking or cycling distance to cafés, restaurants, and supermarkets
• Air conditioning (non-negotiable in Melbourne summers)
• Adequate natural light and storage
• A functional, reasonably modern kitchen — not necessarily luxurious
• Car parking (less important close to the city; more important in middle and outer suburbs)

A property that ticks tenant priorities will lease quickly, attract lower turnover, and sustain rental growth more reliably than one designed for an owner-occupier market.

8. How a Broker Structures Finance to Maximise Your Portfolio Potential

Choosing the right property is only half the equation. How you finance it determines whether the strategy works — both for tax efficiency on the current property and for your ability to purchase the next one.

Maximising Deductions from Day One

Investment loans should typically be set up as interest-only with a linked offset account. This maximises deductible interest, avoids the contamination risk of mixed-purpose redraw, and keeps the loan balance available as a benchmark for future equity release.

Lenders assess investment loan serviceability differently to owner-occupied loans — typically applying a higher assessment rate (often the actual rate plus 2.5–3.0% as a buffer). A broker who specialises in investment lending understands how to present your application to maximise assessed serviceability, which directly affects how much you can borrow.

Keeping Borrowing Capacity for Future Purchases

The structure of your first investment loan affects whether you can buy a second or third property. Key considerations:

• Separate loan facilities: Each investment property should have its own loan, ideally with a different lender to spread credit risk and avoid cross-collateralisation traps. Cross-collateralisation — where multiple properties secure each other's loans — gives the bank disproportionate control over your portfolio and can make it difficult to sell one property independently.
• Limit principal repayments on investment loans: Every dollar you repay on a deductible loan reduces your deductible interest in future years. Redirect surplus cash flow to your non-deductible home loan instead.
• Review borrowing capacity annually: As income grows and property values increase, your equity position and borrowing capacity change. A good broker reviews this with you each year to identify when you have sufficient equity to fund the next purchase without straining cash flow.

A Checklist for Evaluating Your Next Investment Property

No property will tick every box perfectly. The exercise is about stacking the odds — finding a property that scores well across most of these criteria is far more likely to generate a strong long-term outcome than one that scores high on only one or two.

If you're preparing to purchase your first or next investment property, speaking with a mortgage broker early in the process — before you start making offers — allows you to understand your borrowing capacity, structure your loans correctly from the outset, and avoid costly restructuring later.