Thornlie suburb profile
Thornlie is a well established, family-oriented suburb in Perth’s south-eastern suburbs, offering a suburban lifestyle anchored by tree-lined streets and mostly brick-and-tile homes from the late 20th century alongside pockets of newer infill and townhouse developments. The suburb has a strong community feel with local parks, sporting clubs and green corridors that link into the Canning River catchment, plus a local retail hub at Thornlie Shopping Centre for everyday needs. Commuting is straightforward by the Thornlie train station on the Armadale/Thornlie line and regular bus services, and major arterial roads provide easy car access to the wider metropolitan area.
Thornlie property market performance
Current median dwelling price$713,750Past 3 months
Property growth+25.2%Past 12 months
Thornlie has relatively few unit sales, so there isn't enough recent data to publish a reliable median unit price. On the house side, values have risen sharply, up 21.4% over the last 12 months to a median house price of $917,500.
Over the last 3 months, 65 houses and 4 units were sold. Houses had a median of 9 days on market over the last 12 months and units 11 days, so both property types sold in a similar time.
The rental market in Thornlie saw house rents average $700 a week, up a solid 7.7% over the last 12 months, while unit rents averaged $600 a week, up a modest 2.0% over the last 12 months. House rents grew more strongly than unit rents.
| Houses | Units | |
|---|---|---|
Median price Past 3 months | $918K | N/A |
Change in value Past 12 months | 21.4% | 28.9% |
Sold Past 3 months | 65 | 4 |
Median days on market Past 12 months | 9 | 11 |
Average rent Past 12 months | $700 | $600 |
Change in rent Past 12 months | 7.7% | 2.0% |
5 year median price trend for houses and units
Thornlie demographics
Thornlie is home to 23,665 people with a median age of 38. A typical household has a median total income of $1,571 a week, or roughly $81,700 a year.
Families are prominent: couple families with children are the largest group at 45.5%, and together with couple families without children (36.0%) they make up 81.5% of families. One-parent families account for 16.6%, while other families represent 1.9%.
Homes in Thornlie are mostly owner-occupied, at 78.2% combined (34.3% owned outright and 43.9% owned with a mortgage), and 21.8% of dwellings are rented.
Thornlie infrastructure, key developments and investment opportunities
Thornlie is directly served by the METRONET Thornlie-Cockburn Link. The project upgraded Thornlie Station (including duplication of the Beckenham–Thornlie track and modification of Thornlie to operate as a through station), delivered the new Nicholson Road and Ranford Road stations and associated bus interchanges, and opened as the Thornlie–Cockburn line on 8 June 2025; the works also included a principal shared path and public art at the new stations.
Local civic upgrades include the Homestead Park redevelopment, completed and reopened in October 2022 with a new playground, picnic shelters, paths, a basketball half-court and landscaping, and the Homestead Park Centre (formerly Thornlie Community Centre). In education, the 2026 state budget allocated $5 million for a new student services building at Thornlie Senior High School.
Suburbs near Thornlie
Some popular suburbs near Thornlie include:
How does Thornlie compare to nearby suburbs?
- Median house prices: Thornlie’s median house price is 12.9% higher than Maddington’s.
- Median unit prices: Thornlie’s median unit price is 8.5% higher than Gosnells’s.
- House price growth: Over the past 12 months, house prices in Thornlie have grown 0.7% higher than in Maddington.
- Unit price growth: Over the past 12 months, unit prices in Thornlie have grown 3.2% higher than in Maddington.
- Selling speed for houses: Properties in Thornlie are selling 30.8% faster than in Maddington.
- Selling speed for units: Properties in Thornlie are selling 26.7% faster than in Gosnells.
- Investment considerations: In Thornlie, the rental yield for house is 9.1% lower than the Perth average, while the rental yield for units is 9.9% lower.
- House price growth: Over the past 12 months, house prices in Thornlie have grown 21.7% lower than the average rate of growth across Perth.
- Unit price growth:Over the past 12 months, unit prices in Thornlie have grown 18.9% lower than the average rate of growth for units across Perth.

