Thornleigh (2120) Property Data
Median prices, growth rates, sales volume, and demographics for Thornleigh, in the Hornsby LGA. Built on NSW Valuer General bulk sales data and SQM Research listings.
Data updated 2026-05-20.
Median prices
- Median house price
- $1,835,000
- Median unit price
- $821,000
- Median all dwellings
- $1,620,000
Price growth (CAGR)
- 1-year CAGR
- 1.6%
- 3-year CAGR
- 2.5%
- 5-year CAGR
- 7.4%
- 10-year CAGR
- 4.5%
Market activity
- Annual sales (last 12mo)
- 176
- Annual sales (5y avg)
- 160
- Median listing age
- 32 days
Demographics & location
- Population (ABS 2021)
- 8,898
- Population growth 2016-21
- 6.4%
- Median age
- 40
- Median weekly household income
- $2,681
- Median weekly rent
- $530
- Owner-occupier
- 62%
- Rented
- 38%
- Dwelling mix (house / townhouse / unit)
- 75% / 16% / 9%
- SEIFA decile (10 = highest)
- 10
- Distance to Sydney CBD
- 20.0 km
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Frequently asked
What is the median house price in Thornleigh?
The median house price in Thornleigh 2120 is $1,835,000, based on NSW Valuer General sales data over the trailing 12 months.
What is the median unit price in Thornleigh?
The median unit price in Thornleigh 2120 is $821,000.
How much has property grown in Thornleigh over 5 years?
Compound annual growth (CAGR) for Thornleigh over the last 5 years is 7.4%.
How many properties sell in Thornleigh per year?
Around 176 properties sold in Thornleigh 2120 in the last 12 months.
What is the population of Thornleigh?
Thornleigh 2120 has a population of 8,898 (ABS Census 2021).
How long do properties take to sell in Thornleigh?
The median listing age (a proxy for days on market) in Thornleigh 2120 is approximately 32 days, from SQM Research listings data.
Methodology
Medians computed from NSW Valuer General bulk sales data using nearest-month estimation with 3-month smoothing and 3× outlier rejection. CAGRs computed from trailing 12-month medians at each anchor point. The trailing 1–3 months of data are filtered when sale counts fall below typical volumes (settlement-lag handling). Listing age is derived from SQM Research bucketed listing-age data using midpoint medians. Demographics: ABS Census 2021. SEIFA: ABS SEIFA 2021.