Koo Wee Rup vs Mernda

Houses cost about the same in both suburbs: the median house price is $750K in Koo Wee Rup and $750K in Mernda.

For units, Koo Wee Rup sits at a median of $495K against $500K in Mernda, which makes Koo Wee Rup the more affordable unit market and Mernda the pricier one.

On cash flow, Koo Wee Rup leads: houses there return a gross rental yield of 4.32%, compared with 3.81% in Mernda, a gap of 0.51 percentage points.

Over the past year house prices moved +9.1% in Koo Wee Rup and +4.9% in Mernda (an estimate), so recent momentum favours Koo Wee Rup, although both suburbs recorded growth.

Rental vacancy is 0.6% in Koo Wee Rup and 2.0% in Mernda, so landlords in Koo Wee Rup face less competition for tenants. Anything under 2% is generally read as a tight market where tenants compete for homes.

Mernda is the bigger suburb, with a population of 23,369 against 4,047, roughly 6 times the size of Koo Wee Rup; a larger suburb usually means a deeper pool of buyers and tenants.

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