Rental Growth: +4.9% Extra Growth Per Year

What Is Rental Growth?

Rents tell you what is really happening in a suburb. House prices can be driven by sentiment, FOMO, and cheap credit. Rents reflect genuine demand from people who need somewhere to live.

When rents rise faster than prices, yields improve. This attracts investor capital that bids prices up. When rents drop sharply, it signals oversupply or shrinking demand. Capital growth follows.

The threshold is clear. Suburbs where median house rents grew above 2.5% in the past year see stronger capital growth over the next two years. Suburbs where rents dropped by more than 6.5% see dramatically weaker growth.

This is a single, observable variable: the year-on-year change in median weekly rent for houses. One number, one threshold, one clear result.

Three Performance Tiers

The threshold splits suburbs into three tiers based on their year-on-year rental growth rate. Each tier shows a distinct growth pattern.

Performance Over Time

The chart below tracks the 2-year annualised growth rate for the above-threshold suburbs and below-threshold suburbs. The above-threshold suburbs (blue) sit above the below-threshold suburbs (red) in the vast majority of quarters.

Consistency Across 183 Sample Dates

We tested the signal at 27 different points in time between 2008 and 2023. The top tier outperformed the bottom tier at the vast majority of dates. The result held at 165 of 183 total sample dates (90.2%).

Geographic Breakdown

The signal works across most Australian regions. The chart below shows the spread (above-threshold suburbs minus below-threshold suburbs) for each GCCSA region. Positive spread means the signal works as expected.

Full Regional Table

All growth rates are annualised over 2 years, measured 2008 to 2023.

Real-World Example: Riverstone vs Bungarribee

Both are north-west Sydney growth suburbs in the Blacktown corridor, about 10 km apart. Both have new housing estates and attract first-home buyers. The difference is rental demand growth.

Is This Pattern Real?

We tested this rigorously. The pattern of +4.9% extra spread was confirmed by testing across 968,730 total sales over 15 years.

This is a real signal, not a crystal ball. Many factors drive property prices, from interest rates to local infrastructure to supply constraints. Across 15 years of data, this pattern holds consistently.

The signal worked at 165 of 183 different time periods. It held in 11 of 13 geographic regions. The above-threshold suburbs beat the below-threshold suburbs in 92% of quarters. These results point to a genuine, repeatable pattern.