21B Barnett Avenue, St Marys, SA 5042 | Property Value & History | OnTheHouse
 
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21B Barnett Avenue
St Marys SA 5042

Bedrooms: 3
Bathrooms: 2
Car spaces: 1
Floor area: 150m2
Land area: 453m2
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Last updated 25 May 2026
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Property Details for 21b Barnett Ave, St Marys

21b Barnett Ave, St Marys is a 3 bedroom, 2 bathroom House with 1 parking spaces and was built in 2015. The property has a land size of 453m2 and floor size of 150m2. While the property is not currently for sale or for rent, it was last sold in March 2024.

Building Type
House
Year Built
2015
Floor Size
150m2
Land Size
453m2
Local Government
Mitcham
Lot/Plan
A2/D92973

Last Listing description (August 2025)

St Marys isn't 'up and coming'. It's arrived and it couldn't be a better base for this 3-bedroom courtyard home that surprises with every step through its deceptively spacious floorplan and easy-care plot standing enviably above street level.

Whether it's the ensuited main bedroom, the central sitting room that partners the courtyard and could be that playroom the kids want so badly, or the way it all flows so effortlessly from front to open-plan rear; this impeccably presented home is the prototype for modern living, whether you're kid-free, career-focused, retired or growing a family.

Standing just 15 minutes from both the CBD and metro coast (Brighton), it's really no wonder St Marys is enjoying its much-deserved time in the sun, all just a short drive from Pasadena's world-beating supermarket. You've arrived.

Features we love...

- Beautifully maintained by its one and only owner
- Flexible floorplan with multiple living zones
- Central living room could be closed off and converted into a 4th bedroom
- Alfresco pavilion to private rear garden
- Master bedroom with walk-in robe and ensuite bathroom
- 2.7m-high ceilings
- Large open-plan kitchen with breakfast bar, updated Bosch appliances, gas cooktop and dishwasher
- LED down lighting
- Single lock-up garage and additional off-street parking in front
- Separate laundry
- Lawned area to landscaped and secure rear
- Walking distance from public transport
- Close to a range of schools and Flinders University

CT Reference - 6132/116
Council - City of Mitcham
Council Rates - $1,807.05 pa
SA Water Rates - $195.47 pq
Emergency Services Levy - $169.40 pa
Land Size - 453m approx.
Year Built - 2015
Total Build area - 211m approx.

All information or material provided has been obtained from third party sources and, as such, we cannot guarantee that the information or material is accurate. Ouwens Casserly Real Estate Pty Ltd accepts no liability for any errors or omissions (including, but not limited to, a property's floor plans and land size, building condition or age). Interested potential purchasers should make their own enquiries and obtain their own professional advice.

OUWENS CASSERLY MAKE IT HAPPEN
RLA 286513

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Property History for 21b Barnett Ave, St Marys, SA 5042

A timeline of how this property has performed in the market
Last Sold
$895,000
21 Mar 2024
  • 21 Mar 2024
    Sold for $895,000
  • 10 Jan 2024
    Listed for Sale Not Disclosed
  • 12 May 2016
    Sold for $505,350
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About St Marys 5042

The size of St Marys is approximately 1.8 square kilometres. There are 11 parks, covering nearly 25.1% of the total area. The population of St Marys in 2016 was 2759 people. By 2021 the population was 3010 showing a population growth of 9.1% in the area during that time. The predominant age group in St Marys is 30-39 years. Households in St Marys are primarily couples with children and are likely to be repaying $1800 - $2399 per month on mortgage repayments. In general, people in St Marys work in a professional occupation.In 2021, 62.40% of the homes in St Marys were owner-occupied compared with 58.40% in 2016.

St Marys has 1,436 properties. Over the last 5 years, Houses in St Marys have seen a 86.52% increase in median value, while Units have seen a 101.09% increase. As at 30 April 2026:

  • The median value for Houses in St Marys is $1,097,342 while the median value for Units is $625,488.
  • Houses have a median rent of $670 while Units have a median rent of $475.
There are currently 3 properties listed for sale, and 2 properties listed for rent in St marys on OnTheHouse. According to Cotality's data, 64 properties were sold in the past 12 months in St marys.

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Cotality Copyright and Legal Disclaimers about Property Data

© Copyright 2026. RP Data Pty Ltd trading as Cotality (Cotality). All rights reserved. No reproduction, distribution, or transmission of the copyrighted materials is permitted. The information is deemed reliable but not guaranteed.

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.

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