
How to Calculate Price to Rent Ratio in Brisbane
A $900,000 house renting for $750 a week can look affordable or expensive depending on the comparison used. To calculate price to rent ratio, you need more than an advertised rent and a sale price. You need current, supportable evidence for both, then a clear view of what the result does and does not tell you.
For buyers comparing Brisbane, Ipswich, Logan or the Gold Coast from interstate, the ratio is useful because it puts purchase price and rental income on the same page. It is not a price forecast, a valuation, or a reason to overlook a weak property. It is an initial screening measure that needs testing against supply, condition, location and holding costs.
What is the price to rent ratio?
The price to rent ratio compares a property’s purchase price with its annual rental income. It shows how many years of gross rent would equal the purchase price, before costs. A lower ratio generally means more rent relative to price. A higher ratio means the buyer is paying more for each dollar of rent.
The calculation is:
Price to rent ratio = property price ÷ annual rent
Annual rent is the weekly rent multiplied by 52. For example, if a property costs $900,000 and its market rent is $750 per week:
Annual rent = $750 × 52 = $39,000
Price to rent ratio = $900,000 ÷ $39,000 = 23.1
The property has a price to rent ratio of about 23. This is the same relationship expressed from the other direction as gross rental yield. Yield is the annual rent as a percentage of the property price, before expenses.
Gross yield = annual rent ÷ property price × 100
In this example, $39,000 divided by $900,000 equals a gross yield of 4.33 per cent. As a rule, a ratio of 20 equates to a 5 per cent gross yield. A ratio of 25 equates to 4 per cent. The relationship is inverse: as the price to rent ratio rises, gross yield falls.
How to calculate price to rent ratio accurately
The arithmetic is simple. The quality of the inputs is where buyers can make poor decisions.
Start with the price you expect to pay, not the agent’s guide or an optimistic online estimate. For a listed property, this may be your assessed purchase range based on recent comparable sales. Comparable sales should match the property on land size, dwelling type, condition, bed and bathroom count, parking, street quality and proximity to transport or amenities.
Next, use a realistic market rent. An advertised rent is evidence, but it is not proof that a tenant will pay it. Check recently leased comparable properties, their time on market, condition, inclusions and whether they are genuinely similar. A renovated three-bedroom Queenslander in Camp Hill should not be benchmarked only against unrenovated homes several kilometres away.
Then apply the formula using annual rent. Avoid dividing the price by weekly rent. That produces a number that is not comparable with the standard price to rent ratio.
A unit example
Assume a two-bedroom unit in Chermside has an assessed purchase price of $620,000. Recent comparable leases support a rent of $620 per week.
Annual rent is $32,240. Dividing $620,000 by $32,240 gives a price to rent ratio of 19.2. Its gross yield is approximately 5.2 per cent.
That may look stronger than the house example. It does not automatically make the unit the better purchase. The unit may have higher body corporate levies, more competing stock, planned apartment supply nearby or weaker owner-occupier demand. The ratio opens a question. It does not answer it.
What is a good price to rent ratio?
There is no universal good ratio for Brisbane or South East Queensland. A lower ratio can reflect higher income relative to price, but it can also reflect risk. A property with a ratio of 16 may have significant maintenance needs, limited buyer demand, flood exposure, an inferior street position or a local oversupply issue.
A higher ratio may be rational where buyers place a premium on land scarcity, school catchments, walkability and established owner-occupier demand. In inner and middle-ring family suburbs, houses often produce lower gross yields than units or properties in more investor-led markets. That does not make the house incorrectly priced. It means income is only one component of its value.
The most useful comparison is between genuinely similar properties. Compare houses with houses, units with comparable units, and commercial assets with commercial assets. Also compare the same ratio at a point in time. A result based on rents from 18 months ago and prices from last week is not a current measure.
Why the ratio can mislead residential buyers
The price to rent ratio uses gross rent. It does not include rates, insurance, body corporate levies, property management, repairs, vacancy or capital works. Two properties with the same gross yield can produce very different net income once these costs are allowed for.
A townhouse at $700,000 renting for $650 per week has annual gross rent of $33,800 and a ratio of 20.7. If body corporate levies are $6,000 a year, its income position needs closer scrutiny. A freestanding house with the same ratio may have no body corporate levy, but it may require roof repairs, drainage work or other capital expenditure.
Planning overlays also matter. A planning overlay is a mapped planning control that can affect how land is used, developed or altered. Flood, heritage, character, environmental and airport-related overlays can influence insurance, future works, buyer appeal and resale liquidity. The rent may look satisfactory while the risk profile is not.
Vacancy risk deserves the same attention. A high advertised rent is less valuable if the property takes weeks to lease or requires repeated discounting. In suburbs with substantial new unit completions, look at competing rental listings and new supply rather than relying on an area-wide median rent.
Use price to rent ratio with a wider purchase framework
A disciplined assessment places the ratio beside several other inputs. Purchase price should be tested against comparable sales. Rent should be tested against leased evidence. Supply risk should consider current listings, development approvals and projects under construction. Location quality should consider the property itself, not just the suburb name.
For a house, land component, frontage, usable outdoor area, drainage, road noise and renovation quality can materially affect both tenant and buyer demand. For an apartment, floor plan efficiency, car parking, building age, lift dependence, body corporate records and nearby development potential are often decisive.
East Point Buyers Agency uses documented comparison rather than a single metric because buyers need to understand the trade-offs. A property can rank well on rental income but poorly on scarcity or risk. Another can have a modest yield but stronger owner-occupier appeal and limited competing supply. The right choice depends on the buyer’s stated objective and holding assumptions.
Price to rent ratio for commercial property
The same calculation can be used for commercial assets, although commercial analysis requires further lease evidence. Consider a small industrial property purchased for $1.5 million with annual net rent of $105,000. Its price to rent ratio is 14.3 and its net yield is 7 per cent.
Net rent means the rent remaining after the outgoings allocated to the owner, whereas gross rent may include some or all outgoings. Buyers need to confirm which figure is being quoted. Comparing a net commercial yield with a gross residential yield is not like-for-like.
Commercial buyers should also review the lease, tenant financial strength, permitted use, incentives, rent review terms and vacancy risk. WALE, or weighted average lease expiry, measures the average remaining lease term across a property with multiple tenants, weighted by each tenant’s rent or area. A higher income figure is less persuasive if a key tenant is close to expiry or the premises has limited reletting appeal.
A practical way to use the result
Calculate the ratio before inspection, then revise it after due diligence. Record the proposed price, supported weekly rent, annual rent, gross yield, key expenses and the evidence source for each figure. If the deal only works at the top end of a rental estimate, treat that as a risk rather than an assumption.
Finally, ask a simple question: what would change my view? It may be a lower supported rent, a special levy, a competing development, a lease expiry or a superior comparable sale. Writing that answer down creates a more useful decision record than treating one ratio as a verdict.




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