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Aldgate vs Biggs Flat

Property investment comparison - Aldgate, SA 5154 vs Biggs Flat, SA 5153

Head-to-head across core investment metrics: Aldgate wins 1, Biggs Flat wins 0. The better choice depends on whether you're optimising for cash flow, growth, affordability, or liquidity, the table below highlights the winner on each metric.

MetricAldgateBiggs Flat
Median house price$1.6M-
Median unit price$535K-
Gross rental yield (houses)2.46%-
Gross rental yield (units)6.39%-
1-year house growth+6.8%estimate-
3-year house growth--
Vacancy rate1.2%2.8%
Population3,47184

Aldgate vs Biggs Flat: what the numbers say

Rental vacancy is 1.2% in Aldgate and 2.8% in Biggs Flat, so landlords in Aldgate face less competition for tenants. Anything under 2% is generally read as a tight market where tenants compete for homes.

Aldgate is the bigger suburb, with a population of 3,471 against 84, roughly 41 times the size of Biggs Flat; a larger suburb usually means a deeper pool of buyers and tenants.

In short: Aldgate for the tighter rental market. Which matters more depends on whether the investor is buying for cash flow, capital growth or affordability.

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Aldgate vs Biggs Flat: Property Investment Comparison (2026)