Located in the Hornsby council area, Thornleigh (2120) is one of greater Sydney's residential suburbs covered by Stickybeak's property analysis tool. The 16 data cards on this page address four questions every buyer should ask: whether you can afford the suburb (median prices, rental yield, first home buyer schemes), what life would be like there (schools, childcare, walkability, commute to the CBD), whether there are any dealbreakers (flood risk, bushfire zones, air quality, traffic), and how Thornleigh is likely to change over time (development pipeline, price trajectory, demographics). Data is drawn from NSW Planning, Transport for NSW, the ABS, and other authoritative government sources. Use the sticky navigation bar at the top to move directly between sections.
Based on median prices and a 20% deposit at 6.27% variable.
Can I afford Thornleigh?
Rental market in Thornleigh
Median weekly rent from lodged bonds. Sep 2025. Bond count suppressed by DCJ (30 or fewer lodgements this quarter).
Rents here sit around the Sydney middle. A balance of rental stock and owner-occupier demand.
Median weekly rent · Unit · 2 bed
Small sample
$660per week
Sep 2025 · bond count suppressed
Quarterly trend · last 12 quarters
Nearby suburbs · same combination
Cherrybrook2126
…
2.9 km away
Normanhurst2076
…
3.7 km away
Epping2121
…
5.1 km away
Turramurra2074
…
5.3 km away
NSW DCJ Rental Bond Board↗ · Sep 2025 · CC BY. Cells with 10 or fewer bond lodgements are suppressed; cells with 30 or fewer have the bond count suppressed but rent published. Figures are transacted rents, not asking rents.
Get one email when Thornleigh's prices, FHB eligibility, or strata health change. No newsletter, no upsell, unsubscribe with one click.
Compare Thornleigh with another suburb
Also in Hornsby
Comparing suburbs in the same area can sharpen your decision. Browse suburb insights for other Hornsby postcodes, or explore the full Hornsby suburb index.
Thornleigh is the primary suburb with postcode 2120 in New South Wales. In some cases multiple suburbs share the same postcode — Thornleigh is the main locality.
Which local government area is Thornleigh in?
Thornleigh (2120) is located in the Hornsby local government area in New South Wales.
What data does Stickybeak show for Thornleigh?
Stickybeak shows 16 data cards for Thornleigh (2120) covering affordability (median sale prices, rental yield, first home buyer eligibility), lifestyle (schools, childcare, walkability, commute times), risk factors (flood zones, bushfire prone land, air quality, traffic volume), and suburb growth signals (development pipeline, price trajectory, demographics).
Is Thornleigh flood prone?
Flood risk varies street by street in Thornleigh. Check the Dealbreakers section on this page for the latest NSW flood zone mapping sourced from official state government data. Always verify at the property level with a Section 10.7 certificate before purchasing.
What are the best schools near Thornleigh?
The Schools card on this page lists primary and secondary schools within the catchment area for Thornleigh (2120), including their NAPLAN performance data and distance from the suburb centre.
Is Thornleigh (2120) eligible for the First Home Buyer scheme?
The First Home Buyer eligibility card on this page shows which NSW and federal government schemes — including the First Home Guarantee, stamp duty exemptions, and the First Home Super Saver scheme — apply to purchases in Thornleigh (2120). Eligibility depends on the purchase price and your individual circumstances.
How is Thornleigh changing?
The Change section on this page covers new housing supply from the development pipeline, historical price trajectory, and demographic shifts for Thornleigh (2120) using data from NSW Planning, the ATO, and the ABS.
