Alderley vs North Isis

For units, Alderley sits at a median of $855K against $675K in North Isis, which makes North Isis the more affordable unit market and Alderley the pricier one.

On cash flow, North Isis leads: houses there return a gross rental yield of 3.34%, compared with 2.46% in Alderley, a gap of 0.88 percentage points.

Over the past year house prices moved +12.7% in Alderley and +13.6% in North Isis, so recent momentum favours North Isis, although both suburbs recorded growth.

Looking back three years, Alderley houses are +35.9% and North Isis houses +41.1%, so North Isis has compounded faster than Alderley over the longer window.

Rental vacancy is 1.8% in Alderley and 2.4% in North Isis, 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 566, roughly 12 times the size of North Isis; a larger suburb usually means a deeper pool of buyers and tenants.

In short: North Isis for rental income, North Isis 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.