21 Clark Ave, Onkaparinga Hills is a 4 bedroom, 2 bathroom Unit and was built in 2022. The property has a land size of 480m2 and floor size of 208m2. While the property is not currently for sale or for rent, it was last sold in September 2021.
The size of Onkaparinga Hills is approximately 26.3 square kilometres. It has 16 parks covering nearly 28.8% of total area. The population of Onkaparinga Hills in 2016 was 2530 people. By 2021 the population was 2610 showing a population growth of 3.2% in the area during that time. The predominant age group in Onkaparinga Hills is 50-59 years. Households in Onkaparinga Hills are primarily couples with children and are likely to be repaying $1400 - $1799 per month on mortgage repayments. In general, people in Onkaparinga Hills work in a trades occupation.In 2021, 94.80% of the homes in Onkaparinga Hills were owner-occupied compared with 93.20% in 2016.
Onkaparinga Hills has 1,066 properties. Over the last 5 years, Houses in Onkaparinga Hills have seen a 100.45% increase in median value, while Units have seen a -11.44% decrease. As at 30 November 2025:
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