20 Adamson Avenue, Thornleigh, NSW 2120 | Property Value & History | OnTheHouse
OFF MARKET

20 Adamson Avenue
Thornleigh NSW 2120

Bedrooms: 4
Bathrooms: 1
Car spaces: 1
Floor area: 110m2
Land area: 717m2
Estimated Value & Rent
Estimated Value
Estimated Rent
Confidence
Last updated 23 Mar 2026
Low

High
Save

Property Details for 20 Adamson Ave, Thornleigh

20 Adamson Ave, Thornleigh is a 4 bedroom, 1 bathroom House with 1 parking spaces and was built in 1960. The property has a land size of 717m2 and floor size of 110m2. While the property is not currently for sale or for rent, it was last sold in June 2024.

Building Type
House
Year Built
1960
Floor Size
110m2
Land Size
717m2
Local Government
Hornsby
Lot/Plan
52/DP13726

Last Listing description (October 2025)

Explore modern comfort with this home featuring spacious bedrooms and versatile living spaces. Outside, unwind on the alfresco deck with its relaxing spa or gather on the large patio.

Internal Features
- Four generously sized bedrooms offering ample living space

- Two comfortable family rooms providing versatile living areas
- Dining room for formal or casual meals, perfect for gatherings
- Contemporary kitchen with abundant counter and storage space
- Well-placed storage solutions throughout the property for added convenience and organization

External Features
- Inviting alfresco deck featuring a relaxing spa for outdoor enjoyment
- Expansive patio area offering ample space for outdoor entertaining and relaxation
- Abundant grassy area providing plenty of room for outdoor activities and play
- Convenient outdoor retreat complete with a bathroom and additional storage space, perfect for guests or extended family
- Covered carport accompanied by extra driveway space

Building and location:
- 2 min drive to Normanhurst station & cafes
- 7 min drive to Westfield Hornsby
- Local schools include Normanhurst West Public School, Asquith Boys & Girls High, Normanhurst Boys High School, Loreto Normanhurst and Barker College.

For further details or to arrange an inspection, please contact Josh Saliba on 0400 231 424 and Sarah Sibtain on 0450 035 253.

We have obtained all information in this document from sources we believe to be reliable, however, we cannot guarantee its accuracy. Prospective purchasers are advised to carry out their own investigations

Property History for 20 Adamson Ave, Thornleigh, NSW 2120

A timeline of how this property has performed in the market
Last Sold
$1,911,000
22 Jun 2024
  • 22 Jun 2024
    Sold for $1,911,000
  • 29 May 2024
    Listed for Sale Contact Agent
  • 14 Mar 2012
    Sold for $550,000
Sign in to see more transactions
Commute Calculator

About Thornleigh 2120

The size of Thornleigh is approximately 3.9 square kilometres. It has 21 parks covering nearly 19.2% of total area. The population of Thornleigh in 2016 was 8464 people. By 2021 the population was 8898 showing a population growth of 5.1% in the area during that time. The predominant age group in Thornleigh is 40-49 years. Households in Thornleigh are primarily couples with children and are likely to be repaying over $4000 per month on mortgage repayments. In general, people in Thornleigh work in a professional occupation.In 2021, 74.60% of the homes in Thornleigh were owner-occupied compared with 77.90% in 2016.

Thornleigh has 4,025 properties. Over the last 5 years, Houses in Thornleigh have seen a 35.74% increase in median value, while Units have seen a -10.45% decrease. As at 28 February 2026:

  • The median value for Houses in Thornleigh is $1,886,617 while the median value for Units is $876,723.
  • Houses have a median rent of $863 while Units have a median rent of $750.
There are currently 11 properties listed for sale, and 9 properties listed for rent in Thornleigh on OnTheHouse. According to Cotality's data, 172 properties were sold in the past 12 months in Thornleigh.

Suburb Insights for Thornleigh 2120

Market Insights
Thornleigh Trends for Houses
Median Value

N/A

-
View Trend
Median Growth

N/A

View Trend
Median Rent

N/A

-
View Trend
Rental Yield

N/A

-
View Trend
Median Value: The middle value of all properties across the geography based on the Automated Valuation Model.


Median Value over 1 year
Thornleigh Trends for Units
Median Value

N/A

-
View Trend
Median Growth

N/A

View Trend
Median Rent

N/A

-
View Trend
Rental Yield

N/A

-
View Trend
Median Value: The middle value of all properties across the geography based on the Automated Valuation Model.


Median Value over 1 year
Neighbourhood Insights
Age
Household
Occupancy
No data to show
Cotality Copyright and Legal Disclaimers about Property Data
Disclaimer
The Cotality Data provided in this publication is of a general nature and should not be construed as specific advice or relied upon in lieu of appropriate professional advice.

While Cotality uses commercially reasonable efforts to ensure the Cotality Data is current, Cotality does not warrant the accuracy, currency or completeness of the Cotality Data and to the full extent permitted by law excludes all loss or damage howsoever arising (including through negligence) in connection with the Cotality Data.