Alderley vs Diamond Valley

For units, Alderley sits at a median of $855K against $285K in Diamond Valley, which makes Diamond Valley the more affordable unit market and Alderley the pricier one.

On cash flow, Diamond Valley leads: houses there return a gross rental yield of 2.72%, compared with 2.46% in Alderley, a gap of 0.26 percentage points.

Over the past year house prices moved +12.7% in Alderley and +15.8% in Diamond Valley, so recent momentum favours Diamond Valley, although both suburbs recorded growth.

Looking back three years, Alderley houses are +35.9% and Diamond Valley houses +28.7%, so Alderley has compounded faster than Diamond Valley over the longer window.

Rental vacancy is 1.8% in Alderley and 4.7% in Diamond Valley, so landlords in Alderley face less competition for tenants. Anything under 2% is generally read as a tight market where tenants compete for homes.

Alderley is the bigger suburb, with a population of 6,748 against 489, roughly 14 times the size of Diamond Valley; a larger suburb usually means a deeper pool of buyers and tenants.

In short: Diamond Valley for rental income, Diamond Valley for recent price momentum, Alderley for the tighter rental market. Which matters more depends on whether the investor is buying for cash flow, capital growth or affordability.