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Allans Flat vs Altona

Property investment comparison - Allans Flat, VIC 3691 vs Altona, VIC 3018

Head-to-head across core investment metrics: Allans Flat wins 1, Altona wins 3. 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.

MetricAllans FlatAltona
Median house price$1.2M$1.2M
Median unit price$485K$725K
Gross rental yield (houses)2.93%3.12%
Gross rental yield (units)3.90%4.03%
1-year house growth-+1.3%estimate
3-year house growth--
Vacancy rate2.3%1.8%
Population29711,490

Allans Flat vs Altona: what the numbers say

Houses cost about the same in both suburbs: the median house price is $1.2M in Allans Flat and $1.2M in Altona.

For units, Allans Flat sits at a median of $485K against $725K in Altona, which makes Allans Flat the more affordable unit market and Altona the pricier one.

On cash flow, Altona leads: houses there return a gross rental yield of 3.12%, compared with 2.93% in Allans Flat, a gap of 0.19 percentage points.

Rental vacancy is 1.8% in Altona and 2.3% in Allans Flat, so landlords in Altona face less competition for tenants. Anything under 2% is generally read as a tight market where tenants compete for homes.

Altona is the bigger suburb, with a population of 11,490 against 297, roughly 39 times the size of Allans Flat; a larger suburb usually means a deeper pool of buyers and tenants.

In short: Altona for rental income, Altona 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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Allans Flat vs Altona: Property Investment Comparison (2026)