Griffin vs Petrie

The median house price is $995K in Griffin and $990K in Petrie, so Petrie is the cheaper entry point, with Griffin houses about 1% dearer.

For units, Griffin sits at a median of $780K against $720K in Petrie, which makes Petrie the more affordable unit market and Griffin the pricier one.

Over the past year house prices moved +15.6% in Griffin and +14.2% in Petrie, so recent momentum favours Griffin, although both suburbs recorded growth.

Looking back three years, Griffin houses are +43.0% and Petrie houses +44.3%, so Petrie has compounded faster than Griffin over the longer window.

Rental vacancy is 0.6% in Petrie and 1.0% in Griffin, so landlords in Petrie face less competition for tenants. Anything under 2% is generally read as a tight market where tenants compete for homes.

Griffin is the bigger suburb, with a population of 12,295 against 8,722, larger than Petrie; a larger suburb usually means a deeper pool of buyers and tenants.

In short: Petrie for a lower purchase price, Griffin for recent price momentum, Petrie for the tighter rental market. Which matters more depends on whether the investor is buying for cash flow, capital growth or affordability.