Mandogalup vs Marangaroo

The median house price is $950K in Mandogalup and $955K in Marangaroo, so Mandogalup is the cheaper entry point, with Marangaroo houses about 1% dearer.

Gross rental yield on houses is effectively level, at 4.20% in Mandogalup and 4.20% in Marangaroo, so neither suburb has a cash flow edge on houses.

Over the past year house prices moved +14.8% in Mandogalup (an estimate) and +22.1% in Marangaroo (an estimate), so recent momentum favours Marangaroo, although both suburbs recorded growth.

Rental vacancy is 1.0% in Marangaroo and 1.9% in Mandogalup, so landlords in Marangaroo face less competition for tenants. Anything under 2% is generally read as a tight market where tenants compete for homes.

Marangaroo is the bigger suburb, with a population of 10,483 against 128, roughly 82 times the size of Mandogalup; a larger suburb usually means a deeper pool of buyers and tenants.

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