Thornleigh, NSW 2120
Hornsby Shire CouncilAll suburbs in postcode 2120
Updated
Median house price
$1,850,000
-2.0% over the past year.
Median of 93 house sales · NSW Valuer General · calendar 2025
Selling in Thornleigh?
Get the free selling guide, personalised to Thornleigh, or ask for a free appraisal from a local agent.
Thornleigh at a glance
- Median unit
- $446,400
- Weekly rent
- $963
- Houses · units $650
- Population
- 8,898
- Median age 40
Prices: Median of 93 house sales · NSW Valuer General · calendar 2025 · Rent: NSW rental bond data (postcode 2120), June 2026 · Population: 2021 Census
House prices in Thornleigh
Houses change hands at $1,850,000 on a typical sale, well above the NSW median (93 house sales, NSW Valuer General, calendar 2025). Units come in around $446,400, roughly 76% below the house median. The 12-month picture shows a softening market (-2%), giving buyers more room to negotiate.
For sellers
With 12-month growth at -2%, pricing should anchor to the most recent six months of comparables, not last year's peak.
For buyers
A 20% deposit on the median house works out to roughly $370,000. Prices sit well above the NSW median, so plan for a stretched deposit and shop carefully on borrowing capacity.
Rental data as of June 2026· NSW rental bond data (postcode 2120)
Free appraisal in Thornleigh
What’s your home worth in Thornleigh?
Ask us to introduce one participating agent who sells in your area for an appraisal backed by recent comparable sales. Only with your permission, and no commitment to list.
What to know about Thornleigh
Thornleigh (2120) sits in the Hornsby region of NSW. The median house here is $1,850,000, well above the NSW median of around $1.10M. Prices have moved -2% over the past year, well behind the NSW average (3%).
Thornleigh has roughly 8,898 residents, with a typical family-age mix. Households are predominantly owner-occupied. Daily life is car-friendly: most residents drive to work, school and the shops.
What it’s like to live here
Thornleigh scores 34/100 on walkability, which makes it car-friendly with limited public transport. Plan for two cars in a typical household, especially if work isn't local.
Summer days here average around 28°C (warm), winter mornings around 7°C (cool). Annual rainfall lands at about 1,113 mm. Figures are our 1991 to 2020 averages of SILO data for this location (Queensland Government, built from Bureau of Meteorology observations).
Schooling within or near the suburb covers 5 government primary, 3 government secondary, 3 Catholic, 8 independent.
Schools in Thornleigh
Location
Walkability
- Walk
- 34/100
- Transit
- 0/100
- Bike
- 45/100
Car dependent. Scores out of 100, calculated from OpenStreetMap data (ODbL).
Walkability data as of May 2026· OpenStreetMap
Demographics
The 2021 Census put Thornleigh's population at 8,898, with a median age of 40. That sits as a typical family-age mix. Households are predominantly owner-occupied (75% own, 23% rent), which shapes everything from school catchment stability to how often properties turn over. The household mix skews family-dominated (82% family households, 16% lone person), so amenity decisions tend to follow what families want: parks, schools, supermarkets.
- Family households
- 82%
- Lone person
- 16%
- Owner occupied
- 75%
- Renter occupied
- 23%
Demographics data as of May 2026· ABS 2021 Census
Investment overview
Gross rental yield on houses sits at 2.71% (median rent $963/wk against a $1,850,000 price tag). Units yield 7.57% gross, often the better cash-flow play for first-time investors. Renter share is modest (23%), so the rental pool is smaller and tenant demand can be patchier than in higher-density suburbs.
- Gross yield, housesSource: NSW Valuer General (PSI) · Sept 2026
- 2.71%
- On the $1,850,000 median
- Gross yield, unitsSource: NSW Valuer General (PSI) · Sept 2026
- 7.57%
- On the $446,400 median
- 12-month change, housesSource: NSW Valuer General (PSI) · Sept 2026
- -2.0%
Gross rental yield is a year’s rent divided by the purchase price, before expenses. It leaves out vacancy, management fees, maintenance and financing costs, so treat it as a starting point.
Crime and safety
222 offences recorded in 2026
Top offence categories
Source: State Police Open Data
Crime data as of January 2026
Weather year-round
- Annual rainfall
- 1,113 mm
- Hottest month, avg max
- 28.0°C
- Coldest month, avg min
- 6.8°C
Rainfall by month
Our 1991 to 2020 averages of SILO data (Queensland Government, built from Bureau of Meteorology observations, CC BY 4.0) for this location.
Climate data as of October 2026· SILO (Queensland Government), from Bureau of Meteorology observations
Questions about Thornleigh
- What is the median house price in Thornleigh?
- The median house price in Thornleigh, NSW 2120 is $1,850,000 (median of 93 house sales recorded by the NSW Valuer General in calendar 2025). The median unit price is $446,400. Annual growth is -2.0%.
- How much is my house worth in Thornleigh?
- A useful starting point is the Thornleigh median house price of $1,850,000 (units $446,400). Your home will sit above or below that depending on land size, condition, position and what comparable homes nearby have sold for recently. For a figure specific to your property, request a free property appraisal from a local agent using the form on this page.
- Is Thornleigh a good investment?
- On the published figures, the gross rental yield on houses in Thornleigh is 2.7%: the median weekly house rent is $963 (NSW rental bond data (postcode 2120), June 2026) against the median house price of $1,850,000 (NSW Valuer General, calendar 2025). The median house price fell 2.0% over 12 months on the same NSW Valuer General figures. Whether Thornleigh is a good investment for you depends on the price you pay, your loan and holding costs, vacancy and your tax position. These are published market figures, not financial advice.
- What is the Thornleigh postcode?
- Thornleigh is in the 2120 postcode, in NSW, in the Hornsby Shire Council region.
- Where is Thornleigh?
- Thornleigh is a suburb in the Hornsby Shire Council area, NSW 2120.
- What is the average rent in Thornleigh?
- The median weekly rent for houses is $963, for units it's $650.
- What schools are in Thornleigh?
- There are 20 schools serving Thornleigh on this page, including Normanhurst West Public School, Thornleigh West Public School, Normanhurst Public School.
- How walkable is Thornleigh?
- Thornleigh has a Walk Score of 34 out of 100, car-dependent for most errands. transit score 0, bike score 45.
- What suburbs are near Thornleigh?
- Thornleigh is close to Normanhurst, Westleigh, Pennant Hills, Wahroonga, Hornsby.
- What is the population of Thornleigh?
- The population of Thornleigh is approximately 8,898 (2021 Census). The median age is 40.
Selling in Thornleigh? Get the free selling guide
What selling costs, how agents price homes, what to ask them and a 12-week plan to settlement, personalised to Thornleigh. A free PDF, in about a minute.
More on Thornleigh and nearby
Thornleigh
Nearby suburbs
Compare side by side
Selling in NSW
Sources. House and unit medians from the NSW Valuer General, Land Victoria, the SA Government and the ABS; rents from the state rental bond authorities. Census from the ABS (2021), climate from the Bureau of Meteorology, hazard from Geoscience Australia, schools from ACARA and crime from state police open data. Each figure carries its source and date. How we source data
How we’re paid. The guides and this page are free. When a seller asks, we introduce one local agent, and the agent pays us a flat fee for the introduction, never a share of their commission; it costs the seller nothing. If a figure looks wrong, tell us and we’ll fix it.