When it comes to an investment property, a good rental decision needs more than a hunch. You need to understand what comparable homes are achieving, what tenants have to choose from and how your property measures up.
That is where a comparative market analysis, or CMA, becomes useful. It puts evidence behind the conversation so an owner and property manager can make a more informed decision together.
What a rental CMA should tell you
A rental CMA compares your property with genuinely similar homes. Location matters, but so do bedroom and bathroom numbers, parking, condition, outdoor space and features such as air conditioning or a pool.
Recent achieved rents are particularly useful. Current advertisements show the competition, but an asking rent is not proof that a tenant will pay it. Consider how recent the evidence is, how long comparable properties took to lease and any meaningful differences between them.
My approach is to ask: what does the evidence support, and what would make a tenant choose this home over the alternatives?
Look at income across the year
The highest advertised weekly rent does not always produce the strongest annual income. Vacancy can quickly absorb an apparent gain.
Here is a hypothetical illustration, not a record of actual properties or a market forecast. It assumes a 52-week year, full rent collection during occupied weeks and no other income.
| Scenario | Weekly rent | Vacant weeks | Gross annual rent |
|---|---|---|---|
| Higher asking rent, longer vacancy | $800 | 6 | $36,800 |
| Lower rent, shorter vacancy | $770 | 2 | $38,500 |
In this example, the lower weekly rent delivers $1,700 more gross rent over the year. Actual outcomes will vary. These figures exclude management fees, repairs, rates, insurance, finance costs and tax, so they are not a net return or return-on-investment calculation.
Use the evidence to guide improvements
A CMA can also highlight where your property falls behind comparable homes. Fresh paint, well-presented gardens or replacing a tired appliance may improve its appeal, but improvements should be assessed against their cost and likely benefit.
Ask your property manager which features prospective tenants are commenting on. Focus on repairs and practical improvements that suit the home, rather than assuming every upgrade will pay for itself through higher rent.
Keep the tenant conversation clear
Market evidence gives a rent review a sensible starting point. Good communication helps explain the reasoning, listen to concerns and consider the value of keeping a reliable tenant.
A CMA does not override tenancy law. In Queensland, rent increases generally must be at least 12 months apart for the property, even when the tenant, owner or manager changes. Notice and agreement requirements depend on the tenancy and how the increase is introduced. Confirm the applicable rules before proceeding.
Affordability also deserves consideration, but a percentage-of-income rule is only a screening guide, not a universal legal test or automatic insurance condition. Follow current rules when requesting personal information.
Review the evidence, then make the decision
Rental markets change. Refresh the comparisons when reviewing a lease or preparing to advertise, rather than relying on last year’s figures.
A useful CMA should explain the recommended range, the comparable evidence and the differences that matter. It can reduce guesswork; it cannot guarantee a rent, a tenant or a particular investment return.
If you are considering your next investment purchase or reviewing an existing property, Megan and I are happy to talk through the property questions and help you identify the rental evidence to seek from your property manager.