Lake Illawarra vs St Clair

The median house price is $935K in Lake Illawarra and $940K in St Clair, so Lake Illawarra is the cheaper entry point, with St Clair houses about 1% dearer.

On cash flow, Lake Illawarra leads: houses there return a gross rental yield of 3.67%, compared with 3.30% in St Clair, a gap of 0.37 percentage points.

Over the past year house prices moved +6.7% in Lake Illawarra and +7.2% in St Clair (an estimate), so recent momentum favours St Clair, although both suburbs recorded growth.

Looking back three years, Lake Illawarra houses are +25.4% and St Clair houses +8.2%, so Lake Illawarra has compounded faster than St Clair over the longer window.

Rental vacancy is 1.3% in St Clair and 1.4% in Lake Illawarra, so landlords in St Clair face less competition for tenants. Anything under 2% is generally read as a tight market where tenants compete for homes.

St Clair is the bigger suburb, with a population of 19,959 against 3,288, roughly 6 times the size of Lake Illawarra; a larger suburb usually means a deeper pool of buyers and tenants.

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