Dundas Valley vs Thornleigh

The median house price is $1.8M in Dundas Valley and $1.9M in Thornleigh, so Dundas Valley is the cheaper entry point, with Thornleigh houses about 1% dearer.

For units, Dundas Valley sits at a median of $1.2M against $795K in Thornleigh, which makes Thornleigh the more affordable unit market and Dundas Valley the pricier one.

Over the past year house prices moved +0.1% in Dundas Valley (an estimate) and -4.7% in Thornleigh, so recent momentum favours Dundas Valley, while Thornleigh went backwards.

Rental vacancy is 0.7% in Thornleigh and 1.2% in Dundas Valley, so landlords in Thornleigh face less competition for tenants. Anything under 2% is generally read as a tight market where tenants compete for homes.

Thornleigh is the bigger suburb, with a population of 8,898 against 5,875, larger than Dundas Valley; a larger suburb usually means a deeper pool of buyers and tenants.

In short: Dundas Valley for a lower purchase price, Dundas Valley for recent price momentum, Thornleigh for the tighter rental market. Which matters more depends on whether the investor is buying for cash flow, capital growth or affordability.