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Aldgate vs Semaphore South

Property investment comparison - Aldgate, SA 5154 vs Semaphore South, SA 5019

Head-to-head across core investment metrics: Aldgate wins 2, Semaphore South wins 1. 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.

MetricAldgateSemaphore South
Median house price$1.6M-
Median unit price$535K-
Gross rental yield (houses)2.46%-
Gross rental yield (units)6.39%4.20%
1-year house growth+6.8%estimate+9.1%
3-year house growth-+49.6%
Vacancy rate1.2%2.0%
Population3,4711,031

Aldgate vs Semaphore South: what the numbers say

Over the past year house prices moved +6.8% in Aldgate (an estimate) and +9.1% in Semaphore South, so recent momentum favours Semaphore South, although both suburbs recorded growth.

Rental vacancy is 1.2% in Aldgate and 2.0% in Semaphore South, 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 1,031, roughly 3.4 times the size of Semaphore South; a larger suburb usually means a deeper pool of buyers and tenants.

In short: Semaphore South for recent price momentum, 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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