True Cost of Buying in Thornleigh
2120 NSW · 25km to CBD
Market Intelligence
Thornleigh is an established family-oriented suburb located 25km northwest of Sydney CBD in the Upper North Shore region. With a population of 8,200 and median age of 42, it attracts professionals and families seeking quality education, transport connectivity, and a balanced lifestyle. The suburb features predominantly detached houses (72%) on generous blocks with a median land size of 680sqm. Thornleigh Railway Station provides direct CBD access via the T1 Northern Line, while proximity to quality schools including Thornleigh Public School and Normanhurst Boys High School drives strong demand. The median house price of $1,450,000 reflects its desirable location, though it remains more affordable than premium North Shore suburbs. Community amenities include Thornleigh Marketplace, recreational facilities at Thornleigh Oval, and close access to Ku-ring-gai Chase National Park. With 45% professional workers, 42% university-educated residents, and strong infrastructure connectivity, Thornleigh represents a well-established suburb offering family-friendly living with solid investment fundamentals and consistent growth potential in the competitive North Shore market.
Market Snapshot
Median House
$1.4M
+4.2% 1yr
Median Apartment
$680K
+3.8% 1yr
Median Townhouse
$950K
Vacancy Rate
1.8%
42 avg DOM
Yield (Apartment)
4.1%
Yield (House)
3.2%
Auction Clearance
72%
Population
8,200
True Cost Breakdown
Based on median prices · 20% deposit · 6.5% interest · 30-year term · Owner-occupier
Apartment
Purchase Price
$680,000
Stamp Duty
$25,130
1st Year Total
$53,756
House
Purchase Price
$1,450,000
Stamp Duty
$62,160
1st Year Total
$100,334
Townhouse
Purchase Price
$950,000
Stamp Duty
$37,280
1st Year Total
$67,748
Run Your Own Numbers
These are median figures. Plug in the actual property you're looking at to see your real all-in cost — including first-home concessions, investment deductions, or different deposit amounts.
Community Profile
Median Income
$95,000
Median Age
42
Family Households
58%
Owner-Occupied
68%
Walkability
65/100
Public Transport
8/10
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